lib/Geocode.php

   1 <?php
   2         class Geocode
   3         {
   4                 protected $oDB;
   5
   6                 protected $aLangPrefOrder = array();
   7
   8                 protected $bIncludeAddressDetails = false;
   9
  10                 protected $bIncludePolygonAsPoints = false;
  11                 protected $bIncludePolygonAsText = false;
  12                 protected $bIncludePolygonAsGeoJSON = false;
  13                 protected $bIncludePolygonAsKML = false;
  14                 protected $bIncludePolygonAsSVG = false;
  15
  16                 protected $aExcludePlaceIDs = array();
  17                 protected $bDeDupe = true;
  18                 protected $bReverseInPlan = true;
  19
  20                 protected $iLimit = 20;
  21                 protected $iFinalLimit = 10;
  22                 protected $iOffset = 0;
  23                 protected $bFallback = false;
  24
  25                 protected $aCountryCodes = false;
  26                 protected $aNearPoint = false;
  27
  28                 protected $bBoundedSearch = false;
  29                 protected $aViewBox = false;
  30                 protected $sViewboxSmallSQL = false;
  31                 protected $sViewboxLargeSQL = false;
  32                 protected $aRoutePoints = false;
  33
  34                 protected $iMaxRank = 20;
  35                 protected $iMinAddressRank = 0;
  36                 protected $iMaxAddressRank = 30;
  37                 protected $aAddressRankList = array();
  38                 protected $exactMatchCache = array();
  39
  40                 protected $sAllowedTypesSQLList = false;
  41
  42                 protected $sQuery = false;
  43                 protected $aStructuredQuery = false;
  44
  45                 function Geocode(&$oDB)
  46                 {
  47                         $this->oDB =& $oDB;
  48                 }
  49
  50                 function setReverseInPlan($bReverse)
  51                 {
  52                         $this->bReverseInPlan = $bReverse;
  53                 }
  54
  55                 function setLanguagePreference($aLangPref)
  56                 {
  57                         $this->aLangPrefOrder = $aLangPref;
  58                 }
  59
  60                 function setIncludeAddressDetails($bAddressDetails = true)
  61                 {
  62                         $this->bIncludeAddressDetails = (bool)$bAddressDetails;
  63                 }
  64
  65                 function getIncludeAddressDetails()
  66                 {
  67                         return $this->bIncludeAddressDetails;
  68                 }
  69
  70                 function setIncludePolygonAsPoints($b = true)
  71                 {
  72                         $this->bIncludePolygonAsPoints = $b;
  73                 }
  74
  75                 function getIncludePolygonAsPoints()
  76                 {
  77                         return $this->bIncludePolygonAsPoints;
  78                 }
  79
  80                 function setIncludePolygonAsText($b = true)
  81                 {
  82                         $this->bIncludePolygonAsText = $b;
  83                 }
  84
  85                 function getIncludePolygonAsText()
  86                 {
  87                         return $this->bIncludePolygonAsText;
  88                 }
  89
  90                 function setIncludePolygonAsGeoJSON($b = true)
  91                 {
  92                         $this->bIncludePolygonAsGeoJSON = $b;
  93                 }
  94
  95                 function setIncludePolygonAsKML($b = true)
  96                 {
  97                         $this->bIncludePolygonAsKML = $b;
  98                 }
  99
 100                 function setIncludePolygonAsSVG($b = true)
 101                 {
 102                         $this->bIncludePolygonAsSVG = $b;
 103                 }
 104
 105                 function setDeDupe($bDeDupe = true)
 106                 {
 107                         $this->bDeDupe = (bool)$bDeDupe;
 108                 }
 109
 110                 function setLimit($iLimit = 10)
 111                 {
 112                         if ($iLimit > 50) $iLimit = 50;
 113                         if ($iLimit < 1) $iLimit = 1;
 114
 115                         $this->iFinalLimit = $iLimit;
 116                         $this->iLimit = $this->iFinalLimit + min($this->iFinalLimit, 10);
 117                 }
 118
 119                 function setOffset($iOffset = 0)
 120                 {
 121                         $this->iOffset = $iOffset;
 122                 }
 123
 124                 function setFallback($bFallback = true)
 125                 {
 126                         $this->bFallback = (bool)$bFallback;
 127                 }
 128
 129                 function setExcludedPlaceIDs($a)
 130                 {
 131                         // TODO: force to int
 132                         $this->aExcludePlaceIDs = $a;
 133                 }
 134
 135                 function getExcludedPlaceIDs()
 136                 {
 137                         return $this->aExcludePlaceIDs;
 138                 }
 139
 140                 function setBounded($bBoundedSearch = true)
 141                 {
 142                         $this->bBoundedSearch = (bool)$bBoundedSearch;
 143                 }
 144
 145                 function setViewBox($fLeft, $fBottom, $fRight, $fTop)
 146                 {
 147                         $this->aViewBox = array($fLeft, $fBottom, $fRight, $fTop);
 148                 }
 149
 150                 function getViewBoxString()
 151                 {
 152                         if (!$this->aViewBox) return null;
 153                         return $this->aViewBox[0].','.$this->aViewBox[3].','.$this->aViewBox[2].','.$this->aViewBox[1];
 154                 }
 155
 156                 function setRoute($aRoutePoints)
 157                 {
 158                         $this->aRoutePoints = $aRoutePoints;
 159                 }
 160
 161                 function setFeatureType($sFeatureType)
 162                 {
 163                         switch($sFeatureType)
 164                         {
 165                         case 'country':
 166                                 $this->setRankRange(4, 4);
 167                                 break;
 168                         case 'state':
 169                                 $this->setRankRange(8, 8);
 170                                 break;
 171                         case 'city':
 172                                 $this->setRankRange(14, 16);
 173                                 break;
 174                         case 'settlement':
 175                                 $this->setRankRange(8, 20);
 176                                 break;
 177                         }
 178                 }
 179
 180                 function setRankRange($iMin, $iMax)
 181                 {
 182                         $this->iMinAddressRank = (int)$iMin;
 183                         $this->iMaxAddressRank = (int)$iMax;
 184                 }
 185
 186                 function setNearPoint($aNearPoint, $fRadiusDeg = 0.1)
 187                 {
 188                         $this->aNearPoint = array((float)$aNearPoint[0], (float)$aNearPoint[1], (float)$fRadiusDeg);
 189                 }
 190
 191                 function setCountryCodesList($aCountryCodes)
 192                 {
 193                         $this->aCountryCodes = $aCountryCodes;
 194                 }
 195
 196                 function setQuery($sQueryString)
 197                 {
 198                         $this->sQuery = $sQueryString;
 199                         $this->aStructuredQuery = false;
 200                 }
 201
 202                 function getQueryString()
 203                 {
 204                         return $this->sQuery;
 205                 }
 206
 207
 208                 function loadParamArray($aParams)
 209                 {
 210                         if (isset($aParams['addressdetails'])) $this->bIncludeAddressDetails = (bool)$aParams['addressdetails'];
 211                         if (isset($aParams['bounded'])) $this->bBoundedSearch = (bool)$aParams['bounded'];
 212                         if (isset($aParams['dedupe'])) $this->bDeDupe = (bool)$aParams['dedupe'];
 213
 214                         if (isset($aParams['limit'])) $this->setLimit((int)$aParams['limit']);
 215                         if (isset($aParams['offset'])) $this->iOffset = (int)$aParams['offset'];
 216
 217                         if (isset($aParams['fallback'])) $this->bFallback = (bool)$aParams['fallback'];
 218
 219                         // List of excluded Place IDs - used for more acurate pageing
 220                         if (isset($aParams['exclude_place_ids']) && $aParams['exclude_place_ids'])
 221                         {
 222                                 foreach(explode(',',$aParams['exclude_place_ids']) as $iExcludedPlaceID)
 223                                 {
 224                                         $iExcludedPlaceID = (int)$iExcludedPlaceID;
 225                                         if ($iExcludedPlaceID) $aExcludePlaceIDs[$iExcludedPlaceID] = $iExcludedPlaceID;
 226                                 }
 227                                 $this->aExcludePlaceIDs = $aExcludePlaceIDs;
 228                         }
 229
 230                         // Only certain ranks of feature
 231                         if (isset($aParams['featureType'])) $this->setFeatureType($aParams['featureType']);
 232                         if (isset($aParams['featuretype'])) $this->setFeatureType($aParams['featuretype']);
 233
 234                         // Country code list
 235                         if (isset($aParams['countrycodes']))
 236                         {
 237                                 $aCountryCodes = array();
 238                                 foreach(explode(',',$aParams['countrycodes']) as $sCountryCode)
 239                                 {
 240                                         if (preg_match('/^[a-zA-Z][a-zA-Z]$/', $sCountryCode))
 241                                         {
 242                                                 $aCountryCodes[] = strtolower($sCountryCode);
 243                                         }
 244                                 }
 245                                 $this->aCountryCodes = $aCountryCodes;
 246                         }
 247
 248                         if (isset($aParams['viewboxlbrt']) && $aParams['viewboxlbrt'])
 249                         {
 250                                 $aCoOrdinatesLBRT = explode(',',$aParams['viewboxlbrt']);
 251                                 $this->setViewBox($aCoOrdinatesLBRT[0], $aCoOrdinatesLBRT[1], $aCoOrdinatesLBRT[2], $aCoOrdinatesLBRT[3]);
 252                         }
 253                         else if (isset($aParams['viewbox']) && $aParams['viewbox'])
 254                         {
 255                                 $aCoOrdinatesLTRB = explode(',',$aParams['viewbox']);
 256                                 $this->setViewBox($aCoOrdinatesLTRB[0], $aCoOrdinatesLTRB[3], $aCoOrdinatesLTRB[2], $aCoOrdinatesLTRB[1]);
 257                         }
 258
 259                         if (isset($aParams['route']) && $aParams['route'] && isset($aParams['routewidth']) && $aParams['routewidth'])
 260                         {
 261                                 $aPoints = explode(',',$aParams['route']);
 262                                 if (sizeof($aPoints) % 2 != 0)
 263                                 {
 264                                         userError("Uneven number of points");
 265                                         exit;
 266                                 }
 267                                 $fPrevCoord = false;
 268                                 $aRoute = array();
 269                                 foreach($aPoints as $i => $fPoint)
 270                                 {
 271                                         if ($i%2)
 272                                         {
 273                                                 $aRoute[] = array((float)$fPoint, $fPrevCoord);
 274                                         }
 275                                         else
 276                                         {
 277                                                 $fPrevCoord = (float)$fPoint;
 278                                         }
 279                                 }
 280                                 $this->aRoutePoints = $aRoute;
 281                         }
 282                 }
 283
 284                 function setQueryFromParams($aParams)
 285                 {
 286                         // Search query
 287                         $sQuery = (isset($aParams['q'])?trim($aParams['q']):'');
 288                         if (!$sQuery)
 289                         {
 290                                 $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 291                                 $this->setReverseInPlan(false);
 292                         }
 293                         else
 294                         {
 295                                 $this->setQuery($sQuery);
 296                         }
 297                 }
 298
 299                 function loadStructuredAddressElement($sValue, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank, $aItemListValues)
 300                 {
 301                         $sValue = trim($sValue);
 302                         if (!$sValue) return false;
 303                         $this->aStructuredQuery[$sKey] = $sValue;
 304                         if ($this->iMinAddressRank == 0 && $this->iMaxAddressRank == 30)
 305                         {
 306                                 $this->iMinAddressRank = $iNewMinAddressRank;
 307                                 $this->iMaxAddressRank = $iNewMaxAddressRank;
 308                         }
 309                         if ($aItemListValues) $this->aAddressRankList = array_merge($this->aAddressRankList, $aItemListValues);
 310                         return true;
 311                 }
 312
 313                 function setStructuredQuery($sAmentiy = false, $sStreet = false, $sCity = false, $sCounty = false, $sState = false, $sCountry = false, $sPostalCode = false)
 314                 {
 315                         $this->sQuery = false;
 316
 317                         // Reset
 318                         $this->iMinAddressRank = 0;
 319                         $this->iMaxAddressRank = 30;
 320                         $this->aAddressRankList = array();
 321
 322                         $this->aStructuredQuery = array();
 323                         $this->sAllowedTypesSQLList = '';
 324
 325                         $this->loadStructuredAddressElement($sAmentiy, 'amenity', 26, 30, false);
 326                         $this->loadStructuredAddressElement($sStreet, 'street', 26, 30, false);
 327                         $this->loadStructuredAddressElement($sCity, 'city', 14, 24, false);
 328                         $this->loadStructuredAddressElement($sCounty, 'county', 9, 13, false);
 329                         $this->loadStructuredAddressElement($sState, 'state', 8, 8, false);
 330                         $this->loadStructuredAddressElement($sPostalCode, 'postalcode' , 5, 11, array(5, 11));
 331                         $this->loadStructuredAddressElement($sCountry, 'country', 4, 4, false);
 332
 333                         if (sizeof($this->aStructuredQuery) > 0)
 334                         {
 335                                 $this->sQuery = join(', ', $this->aStructuredQuery);
 336                                 if ($this->iMaxAddressRank < 30)
 337                                 {
 338                                         $sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 339                                 }
 340                         }
 341                 }
 342
 343                 function fallbackStructuredQuery()
 344                 {
 345                         if (!$this->aStructuredQuery) return false;
 346
 347                         $aParams = $this->aStructuredQuery;
 348
 349                         if (sizeof($aParams) == 1) return false;
 350
 351                         $aOrderToFallback = array('postalcode', 'street', 'city', 'county', 'state');
 352
 353                         foreach($aOrderToFallback as $sType)
 354                         {
 355                                 if (isset($aParams[$sType]))
 356                                 {
 357                                         unset($aParams[$sType]);
 358                                         $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 359                                         return true;
 360                                 }
 361                         }
 362
 363                         return false;
 364                 }
 365
 366                 function getDetails($aPlaceIDs)
 367                 {
 368                         if (sizeof($aPlaceIDs) == 0)  return array();
 369
 370                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 371
 372                         // Get the details for display (is this a redundant extra step?)
 373                         $sPlaceIDs = join(',',$aPlaceIDs);
 374
 375                         $sImportanceSQL = '';
 376                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxSmallSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 377                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxLargeSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 378
 379                         $sSQL = "select osm_type,osm_id,class,type,admin_level,rank_search,rank_address,min(place_id) as place_id, min(parent_place_id) as parent_place_id, calculated_country_code as country_code,";
 380                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 381                         $sSQL .= "get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
 382                         $sSQL .= "get_name_by_language(name, ARRAY['ref']) as ref,";
 383                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 384                         $sSQL .= $sImportanceSQL."coalesce(importance,0.75-(rank_search::float/40)) as importance, ";
 385                         $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(CASE WHEN placex.rank_search < 28 THEN placex.place_id ELSE placex.parent_place_id END) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 386                         $sSQL .= "(extratags->'place') as extra_place ";
 387                         $sSQL .= "from placex where place_id in ($sPlaceIDs) ";
 388                         $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
 389                         if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
 390                         if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
 391                         $sSQL .= ") ";
 392                         if ($this->sAllowedTypesSQLList) $sSQL .= "and placex.class in $this->sAllowedTypesSQLList ";
 393                         $sSQL .= "and linked_place_id is null ";
 394                         $sSQL .= "group by osm_type,osm_id,class,type,admin_level,rank_search,rank_address,calculated_country_code,importance";
 395                         if (!$this->bDeDupe) $sSQL .= ",place_id";
 396                         $sSQL .= ",langaddress ";
 397                         $sSQL .= ",placename ";
 398                         $sSQL .= ",ref ";
 399                         $sSQL .= ",extratags->'place' ";
 400
 401                         if (30 >= $this->iMinAddressRank && 30 <= $this->iMaxAddressRank)
 402                         {
 403                                 $sSQL .= " union ";
 404                                 $sSQL .= "select 'T' as osm_type,place_id as osm_id,'place' as class,'house' as type,null as admin_level,30 as rank_search,30 as rank_address,min(place_id) as place_id, min(parent_place_id) as parent_place_id,'us' as country_code,";
 405                                 $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 406                                 $sSQL .= "null as placename,";
 407                                 $sSQL .= "null as ref,";
 408                                 $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 409                                 $sSQL .= $sImportanceSQL."-1.15 as importance, ";
 410                                 $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(location_property_tiger.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 411                                 $sSQL .= "null as extra_place ";
 412                                 $sSQL .= "from location_property_tiger where place_id in ($sPlaceIDs) ";
 413                                 $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 414                                 $sSQL .= "group by place_id";
 415                                 if (!$this->bDeDupe) $sSQL .= ",place_id ";
 416                                 /*
 417                                 $sSQL .= " union ";
 418                                 $sSQL .= "select 'L' as osm_type,place_id as osm_id,'place' as class,'house' as type,null as admin_level,30 as rank_search,30 as rank_address,min(place_id) as place_id, min(parent_place_id) as parent_place_id,'us' as country_code,";
 419                                 $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 420                                 $sSQL .= "null as placename,";
 421                                 $sSQL .= "null as ref,";
 422                                 $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 423                                 $sSQL .= $sImportanceSQL."-1.10 as importance, ";
 424                                 $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(location_property_aux.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 425                                 $sSQL .= "null as extra_place ";
 426                                 $sSQL .= "from location_property_aux where place_id in ($sPlaceIDs) ";
 427                                 $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 428                                 $sSQL .= "group by place_id";
 429                                 if (!$this->bDeDupe) $sSQL .= ",place_id";
 430                                 $sSQL .= ",get_address_by_language(place_id, $sLanguagePrefArraySQL) ";
 431                                 */
 432                         }
 433
 434                         $sSQL .= " order by importance desc";
 435                         if (CONST_Debug) { echo "<hr>"; var_dump($sSQL); }
 436                         $aSearchResults = $this->oDB->getAll($sSQL);
 437
 438                         if (PEAR::IsError($aSearchResults))
 439                         {
 440                                 failInternalError("Could not get details for place.", $sSQL, $aSearchResults);
 441                         }
 442
 443                         return $aSearchResults;
 444                 }
 445
 446                 /* Perform the actual query lookup.
 447
 448                         Returns an ordered list of results, each with the following fields:
 449                           osm_type: type of corresponding OSM object
 450                                                         N - node
 451                                                         W - way
 452                                                         R - relation
 453                                                         P - postcode (internally computed)
 454                           osm_id: id of corresponding OSM object
 455                           class: general object class (corresponds to tag key of primary OSM tag)
 456                           type: subclass of object (corresponds to tag value of primary OSM tag)
 457                           admin_level: see http://wiki.openstreetmap.org/wiki/Admin_level
 458                           rank_search: rank in search hierarchy
 459                                                         (see also http://wiki.openstreetmap.org/wiki/Nominatim/Development_overview#Country_to_street_level)
 460                           rank_address: rank in address hierarchy (determines orer in address)
 461                           place_id: internal key (may differ between different instances)
 462                           country_code: ISO country code
 463                           langaddress: localized full address
 464                           placename: localized name of object
 465                           ref: content of ref tag (if available)
 466                           lon: longitude
 467                           lat: latitude
 468                           importance: importance of place based on Wikipedia link count
 469                           addressimportance: cumulated importance of address elements
 470                           extra_place: type of place (for admin boundaries, if there is a place tag)
 471                           aBoundingBox: bounding Box
 472                           label: short description of the object class/type (English only)
 473                           name: full name (currently the same as langaddress)
 474                           foundorder: secondary ordering for places with same importance
 475                 */
 476                 function lookup()
 477                 {
 478                         if (!$this->sQuery && !$this->aStructuredQuery) return false;
 479
 480                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 481
 482                         $sCountryCodesSQL = false;
 483                         if ($this->aCountryCodes && sizeof($this->aCountryCodes))
 484                         {
 485                                 $sCountryCodesSQL = join(',', array_map('addQuotes', $this->aCountryCodes));
 486                         }
 487
 488                         $sQuery = $this->sQuery;
 489
 490                         // Conflicts between US state abreviations and various words for 'the' in different languages
 491                         if (isset($this->aLangPrefOrder['name:en']))
 492                         {
 493                                 $sQuery = preg_replace('/(^|,)\s*il\s*(,|$)/','\1illinois\2', $sQuery);
 494                                 $sQuery = preg_replace('/(^|,)\s*al\s*(,|$)/','\1alabama\2', $sQuery);
 495                                 $sQuery = preg_replace('/(^|,)\s*la\s*(,|$)/','\1louisiana\2', $sQuery);
 496                         }
 497
 498                         // View Box SQL
 499                         $sViewboxCentreSQL = false;
 500                         $bBoundingBoxSearch = false;
 501                         if ($this->aViewBox)
 502                         {
 503                                 $fHeight = $this->aViewBox[0]-$this->aViewBox[2];
 504                                 $fWidth = $this->aViewBox[1]-$this->aViewBox[3];
 505                                 $aBigViewBox[0] = $this->aViewBox[0] + $fHeight;
 506                                 $aBigViewBox[2] = $this->aViewBox[2] - $fHeight;
 507                                 $aBigViewBox[1] = $this->aViewBox[1] + $fWidth;
 508                                 $aBigViewBox[3] = $this->aViewBox[3] - $fWidth;
 509
 510                                 $this->sViewboxSmallSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$this->aViewBox[0].",".(float)$this->aViewBox[1]."),ST_Point(".(float)$this->aViewBox[2].",".(float)$this->aViewBox[3].")),4326)";
 511                                 $this->sViewboxLargeSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$aBigViewBox[0].",".(float)$aBigViewBox[1]."),ST_Point(".(float)$aBigViewBox[2].",".(float)$aBigViewBox[3].")),4326)";
 512                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 513                         }
 514
 515                         // Route SQL
 516                         if ($this->aRoutePoints)
 517                         {
 518                                 $sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
 519                                 $bFirst = true;
 520                                 foreach($this->aRoutePoints as $aPoint)
 521                                 {
 522                                         if (!$bFirst) $sViewboxCentreSQL .= ",";
 523                                         $sViewboxCentreSQL .= $aPoint[1].' '.$aPoint[0];
 524                                         $bFirst = false;
 525                                 }
 526                                 $sViewboxCentreSQL .= ")'::geometry,4326)";
 527
 528                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/69).")";
 529                                 $this->sViewboxSmallSQL = $this->oDB->getOne($sSQL);
 530                                 if (PEAR::isError($this->sViewboxSmallSQL))
 531                                 {
 532                                         failInternalError("Could not get small viewbox.", $sSQL, $this->sViewboxSmallSQL);
 533                                 }
 534                                 $this->sViewboxSmallSQL = "'".$this->sViewboxSmallSQL."'::geometry";
 535
 536                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/30).")";
 537                                 $this->sViewboxLargeSQL = $this->oDB->getOne($sSQL);
 538                                 if (PEAR::isError($this->sViewboxLargeSQL))
 539                                 {
 540                                         failInternalError("Could not get large viewbox.", $sSQL, $this->sViewboxLargeSQL);
 541                                 }
 542                                 $this->sViewboxLargeSQL = "'".$this->sViewboxLargeSQL."'::geometry";
 543                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 544                         }
 545
 546                         // Do we have anything that looks like a lat/lon pair?
 547                         if (preg_match('/\\b([NS])[ ]+([0-9]+[0-9.]*)[ ]+([0-9.]+)?[, ]+([EW])[ ]+([0-9]+)[ ]+([0-9]+[0-9.]*)?\\b/', $sQuery, $aData))
 548                         {
 549                                 $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60);
 550                                 $fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[5] + $aData[6]/60);
 551                                 if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 552                                 {
 553                                         $this->setNearPoint(array($fQueryLat, $fQueryLon));
 554                                         $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 555                                 }
 556                         }
 557                         elseif (preg_match('/\\b([0-9]+)[ ]+([0-9]+[0-9.]*)?[ ]+([NS])[, ]+([0-9]+)[ ]+([0-9]+[0-9.]*)?[ ]+([EW])\\b/', $sQuery, $aData))
 558                         {
 559                                 $fQueryLat = ($aData[3]=='N'?1:-1) * ($aData[1] + $aData[2]/60);
 560                                 $fQueryLon = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
 561                                 if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 562                                 {
 563                                         $this->setNearPoint(array($fQueryLat, $fQueryLon));
 564                                         $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 565                                 }
 566                         }
 567                         elseif (preg_match('/(\\[|^|\\b)(-?[0-9]+[0-9]*\\.[0-9]+)[, ]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]|$|\\b)/', $sQuery, $aData))
 568                         {
 569                                 $fQueryLat = $aData[2];
 570                                 $fQueryLon = $aData[3];
 571                                 if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 572                                 {
 573                                         $this->setNearPoint(array($fQueryLat, $fQueryLon));
 574                                         $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 575                                 }
 576                         }
 577
 578                         $aSearchResults = array();
 579                         if ($sQuery || $this->aStructuredQuery)
 580                         {
 581                                 // Start with a blank search
 582                                 $aSearches = array(
 583                                         array('iSearchRank' => 0, 'iNamePhrase' => -1, 'sCountryCode' => false, 'aName'=>array(), 'aAddress'=>array(), 'aFullNameAddress'=>array(),
 584                                               'aNameNonSearch'=>array(), 'aAddressNonSearch'=>array(),
 585                                               'sOperator'=>'', 'aFeatureName' => array(), 'sClass'=>'', 'sType'=>'', 'sHouseNumber'=>'', 'fLat'=>'', 'fLon'=>'', 'fRadius'=>'')
 586                                 );
 587
 588                                 // Do we have a radius search?
 589                                 $sNearPointSQL = false;
 590                                 if ($this->aNearPoint)
 591                                 {
 592                                         $sNearPointSQL = "ST_SetSRID(ST_Point(".(float)$this->aNearPoint[1].",".(float)$this->aNearPoint[0]."),4326)";
 593                                         $aSearches[0]['fLat'] = (float)$this->aNearPoint[0];
 594                                         $aSearches[0]['fLon'] = (float)$this->aNearPoint[1];
 595                                         $aSearches[0]['fRadius'] = (float)$this->aNearPoint[2];
 596                                 }
 597
 598                                 // Any 'special' terms in the search?
 599                                 $bSpecialTerms = false;
 600                                 preg_match_all('/\\[(.*)=(.*)\\]/', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 601                                 $aSpecialTerms = array();
 602                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 603                                 {
 604                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 605                                         $aSpecialTerms[strtolower($aSpecialTerm[1])] = $aSpecialTerm[2];
 606                                 }
 607
 608                                 preg_match_all('/\\[([\\w ]*)\\]/u', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 609                                 $aSpecialTerms = array();
 610                                 if (isset($aStructuredQuery['amenity']) && $aStructuredQuery['amenity'])
 611                                 {
 612                                         $aSpecialTermsRaw[] = array('['.$aStructuredQuery['amenity'].']', $aStructuredQuery['amenity']);
 613                                         unset($aStructuredQuery['amenity']);
 614                                 }
 615                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 616                                 {
 617                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 618                                         $sToken = $this->oDB->getOne("select make_standard_name('".$aSpecialTerm[1]."') as string");
 619                                         $sSQL = 'select * from (select word_id,word_token, word, class, type, country_code, operator';
 620                                         $sSQL .= ' from word where word_token in (\' '.$sToken.'\')) as x where (class is not null and class not in (\'place\')) or country_code is not null';
 621                                         if (CONST_Debug) var_Dump($sSQL);
 622                                         $aSearchWords = $this->oDB->getAll($sSQL);
 623                                         $aNewSearches = array();
 624                                         foreach($aSearches as $aSearch)
 625                                         {
 626                                                 foreach($aSearchWords as $aSearchTerm)
 627                                                 {
 628                                                         $aNewSearch = $aSearch;
 629                                                         if ($aSearchTerm['country_code'])
 630                                                         {
 631                                                                 $aNewSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 632                                                                 $aNewSearches[] = $aNewSearch;
 633                                                                 $bSpecialTerms = true;
 634                                                         }
 635                                                         if ($aSearchTerm['class'])
 636                                                         {
 637                                                                 $aNewSearch['sClass'] = $aSearchTerm['class'];
 638                                                                 $aNewSearch['sType'] = $aSearchTerm['type'];
 639                                                                 $aNewSearches[] = $aNewSearch;
 640                                                                 $bSpecialTerms = true;
 641                                                         }
 642                                                 }
 643                                         }
 644                                         $aSearches = $aNewSearches;
 645                                 }
 646
 647                                 // Split query into phrases
 648                                 // Commas are used to reduce the search space by indicating where phrases split
 649                                 if ($this->aStructuredQuery)
 650                                 {
 651                                         $aPhrases = $this->aStructuredQuery;
 652                                         $bStructuredPhrases = true;
 653                                 }
 654                                 else
 655                                 {
 656                                         $aPhrases = explode(',',$sQuery);
 657                                         $bStructuredPhrases = false;
 658                                 }
 659
 660                                 // Convert each phrase to standard form
 661                                 // Create a list of standard words
 662                                 // Get all 'sets' of words
 663                                 // Generate a complete list of all
 664                                 $aTokens = array();
 665                                 foreach($aPhrases as $iPhrase => $sPhrase)
 666                                 {
 667                                         $aPhrase = $this->oDB->getRow("select make_standard_name('".pg_escape_string($sPhrase)."') as string");
 668                                         if (PEAR::isError($aPhrase))
 669                                         {
 670                                                 userError("Illegal query string (not an UTF-8 string): ".$sPhrase);
 671                                                 if (CONST_Debug) var_dump($aPhrase);
 672                                                 exit;
 673                                         }
 674                                         if (trim($aPhrase['string']))
 675                                         {
 676                                                 $aPhrases[$iPhrase] = $aPhrase;
 677                                                 $aPhrases[$iPhrase]['words'] = explode(' ',$aPhrases[$iPhrase]['string']);
 678                                                 $aPhrases[$iPhrase]['wordsets'] = getWordSets($aPhrases[$iPhrase]['words'], 0);
 679                                                 $aTokens = array_merge($aTokens, getTokensFromSets($aPhrases[$iPhrase]['wordsets']));
 680                                         }
 681                                         else
 682                                         {
 683                                                 unset($aPhrases[$iPhrase]);
 684                                         }
 685                                 }
 686
 687                                 // Reindex phrases - we make assumptions later on that they are numerically keyed in order
 688                                 $aPhraseTypes = array_keys($aPhrases);
 689                                 $aPhrases = array_values($aPhrases);
 690
 691                                 if (sizeof($aTokens))
 692                                 {
 693                                         // Check which tokens we have, get the ID numbers
 694                                         $sSQL = 'select word_id,word_token, word, class, type, country_code, operator, search_name_count';
 695                                         $sSQL .= ' from word where word_token in ('.join(',',array_map("getDBQuoted",$aTokens)).')';
 696
 697                                         if (CONST_Debug) var_Dump($sSQL);
 698
 699                                         $aValidTokens = array();
 700                                         if (sizeof($aTokens)) $aDatabaseWords = $this->oDB->getAll($sSQL);
 701                                         else $aDatabaseWords = array();
 702                                         if (PEAR::IsError($aDatabaseWords))
 703                                         {
 704                                                 failInternalError("Could not get word tokens.", $sSQL, $aDatabaseWords);
 705                                         }
 706                                         $aPossibleMainWordIDs = array();
 707                                         $aWordFrequencyScores = array();
 708                                         foreach($aDatabaseWords as $aToken)
 709                                         {
 710                                                 // Very special case - require 2 letter country param to match the country code found
 711                                                 if ($bStructuredPhrases && $aToken['country_code'] && !empty($aStructuredQuery['country'])
 712                                                                 && strlen($aStructuredQuery['country']) == 2 && strtolower($aStructuredQuery['country']) != $aToken['country_code'])
 713                                                 {
 714                                                         continue;
 715                                                 }
 716
 717                                                 if (isset($aValidTokens[$aToken['word_token']]))
 718                                                 {
 719                                                         $aValidTokens[$aToken['word_token']][] = $aToken;
 720                                                 }
 721                                                 else
 722                                                 {
 723                                                         $aValidTokens[$aToken['word_token']] = array($aToken);
 724                                                 }
 725                                                 if (!$aToken['class'] && !$aToken['country_code']) $aPossibleMainWordIDs[$aToken['word_id']] = 1;
 726                                                 $aWordFrequencyScores[$aToken['word_id']] = $aToken['search_name_count'] + 1;
 727                                         }
 728                                         if (CONST_Debug) var_Dump($aPhrases, $aValidTokens);
 729
 730                                         // Try and calculate GB postcodes we might be missing
 731                                         foreach($aTokens as $sToken)
 732                                         {
 733                                                 // Source of gb postcodes is now definitive - always use
 734                                                 if (preg_match('/^([A-Z][A-Z]?[0-9][0-9A-Z]? ?[0-9])([A-Z][A-Z])$/', strtoupper(trim($sToken)), $aData))
 735                                                 {
 736                                                         if (substr($aData[1],-2,1) != ' ')
 737                                                         {
 738                                                                 $aData[0] = substr($aData[0],0,strlen($aData[1]-1)).' '.substr($aData[0],strlen($aData[1]-1));
 739                                                                 $aData[1] = substr($aData[1],0,-1).' '.substr($aData[1],-1,1);
 740                                                         }
 741                                                         $aGBPostcodeLocation = gbPostcodeCalculate($aData[0], $aData[1], $aData[2], $this->oDB);
 742                                                         if ($aGBPostcodeLocation)
 743                                                         {
 744                                                                 $aValidTokens[$sToken] = $aGBPostcodeLocation;
 745                                                         }
 746                                                 }
 747                                                 // US ZIP+4 codes - if there is no token,
 748                                                 //      merge in the 5-digit ZIP code
 749                                                 else if (!isset($aValidTokens[$sToken]) && preg_match('/^([0-9]{5}) [0-9]{4}$/', $sToken, $aData))
 750                                                 {
 751                                                         if (isset($aValidTokens[$aData[1]]))
 752                                                         {
 753                                                                 foreach($aValidTokens[$aData[1]] as $aToken)
 754                                                                 {
 755                                                                         if (!$aToken['class'])
 756                                                                         {
 757                                                                                 if (isset($aValidTokens[$sToken]))
 758                                                                                 {
 759                                                                                         $aValidTokens[$sToken][] = $aToken;
 760                                                                                 }
 761                                                                                 else
 762                                                                                 {
 763                                                                                         $aValidTokens[$sToken] = array($aToken);
 764                                                                                 }
 765                                                                         }
 766                                                                 }
 767                                                         }
 768                                                 }
 769                                         }
 770
 771                                         foreach($aTokens as $sToken)
 772                                         {
 773                                                 // Unknown single word token with a number - assume it is a house number
 774                                                 if (!isset($aValidTokens[' '.$sToken]) && strpos($sToken,' ') === false && preg_match('/[0-9]/', $sToken))
 775                                                 {
 776                                                         $aValidTokens[' '.$sToken] = array(array('class'=>'place','type'=>'house'));
 777                                                 }
 778                                         }
 779
 780                                         // Any words that have failed completely?
 781                                         // TODO: suggestions
 782
 783                                         // Start the search process
 784                                         $aResultPlaceIDs = array();
 785
 786                                         /*
 787                                            Calculate all searches using aValidTokens i.e.
 788                                            'Wodsworth Road, Sheffield' =>
 789
 790                                            Phrase Wordset
 791                                            0      0       (wodsworth road)
 792                                            0      1       (wodsworth)(road)
 793                                            1      0       (sheffield)
 794
 795                                            Score how good the search is so they can be ordered
 796                                          */
 797                                         foreach($aPhrases as $iPhrase => $sPhrase)
 798                                         {
 799                                                 $aNewPhraseSearches = array();
 800                                                 if ($bStructuredPhrases) $sPhraseType = $aPhraseTypes[$iPhrase];
 801                                                 else $sPhraseType = '';
 802
 803                                                 foreach($aPhrases[$iPhrase]['wordsets'] as $iWordSet => $aWordset)
 804                                                 {
 805                                                         // Too many permutations - too expensive
 806                                                         if ($iWordSet > 120) break;
 807
 808                                                         $aWordsetSearches = $aSearches;
 809
 810                                                         // Add all words from this wordset
 811                                                         foreach($aWordset as $iToken => $sToken)
 812                                                         {
 813                                                                 //echo "<br><b>$sToken</b>";
 814                                                                 $aNewWordsetSearches = array();
 815
 816                                                                 foreach($aWordsetSearches as $aCurrentSearch)
 817                                                                 {
 818                                                                         //echo "<i>";
 819                                                                         //var_dump($aCurrentSearch);
 820                                                                         //echo "</i>";
 821
 822                                                                         // If the token is valid
 823                                                                         if (isset($aValidTokens[' '.$sToken]))
 824                                                                         {
 825                                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTerm)
 826                                                                                 {
 827                                                                                         $aSearch = $aCurrentSearch;
 828                                                                                         $aSearch['iSearchRank']++;
 829                                                                                         if (($sPhraseType == '' || $sPhraseType == 'country') && !empty($aSearchTerm['country_code']) && $aSearchTerm['country_code'] != '0')
 830                                                                                         {
 831                                                                                                 if ($aSearch['sCountryCode'] === false)
 832                                                                                                 {
 833                                                                                                         $aSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 834                                                                                                         // Country is almost always at the end of the string - increase score for finding it anywhere else (optimisation)
 835                                                                                                         // If reverse order is enabled, it may appear at the beginning as well.
 836                                                                                                         if (($iToken+1 != sizeof($aWordset) || $iPhrase+1 != sizeof($aPhrases)) &&
 837                                                                                                                         (!$this->bReverseInPlan || $iToken > 0 || $iPhrase > 0))
 838                                                                                                         {
 839                                                                                                                 $aSearch['iSearchRank'] += 5;
 840                                                                                                         }
 841                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 842                                                                                                 }
 843                                                                                         }
 844                                                                                         elseif (isset($aSearchTerm['lat']) && $aSearchTerm['lat'] !== '' && $aSearchTerm['lat'] !== null)
 845                                                                                         {
 846                                                                                                 if ($aSearch['fLat'] === '')
 847                                                                                                 {
 848                                                                                                         $aSearch['fLat'] = $aSearchTerm['lat'];
 849                                                                                                         $aSearch['fLon'] = $aSearchTerm['lon'];
 850                                                                                                         $aSearch['fRadius'] = $aSearchTerm['radius'];
 851                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 852                                                                                                 }
 853                                                                                         }
 854                                                                                         elseif ($sPhraseType == 'postalcode')
 855                                                                                         {
 856                                                                                                 // We need to try the case where the postal code is the primary element (i.e. no way to tell if it is (postalcode, city) OR (city, postalcode) so try both
 857                                                                                                 if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 858                                                                                                 {
 859                                                                                                         // If we already have a name try putting the postcode first
 860                                                                                                         if (sizeof($aSearch['aName']))
 861                                                                                                         {
 862                                                                                                                 $aNewSearch = $aSearch;
 863                                                                                                                 $aNewSearch['aAddress'] = array_merge($aNewSearch['aAddress'], $aNewSearch['aName']);
 864                                                                                                                 $aNewSearch['aName'] = array();
 865                                                                                                                 $aNewSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 866                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aNewSearch;
 867                                                                                                         }
 868
 869                                                                                                         if (sizeof($aSearch['aName']))
 870                                                                                                         {
 871                                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strlen($sToken) < 4 || strpos($sToken, ' ') !== false))
 872                                                                                                                 {
 873                                                                                                                         $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 874                                                                                                                 }
 875                                                                                                                 else
 876                                                                                                                 {
 877                                                                                                                         $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 878                                                                                                                         $aSearch['iSearchRank'] += 1000; // skip;
 879                                                                                                                 }
 880                                                                                                         }
 881                                                                                                         else
 882                                                                                                         {
 883                                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 884                                                                                                                 //$aSearch['iNamePhrase'] = $iPhrase;
 885                                                                                                         }
 886                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 887                                                                                                 }
 888
 889                                                                                         }
 890                                                                                         elseif (($sPhraseType == '' || $sPhraseType == 'street') && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house')
 891                                                                                         {
 892                                                                                                 if ($aSearch['sHouseNumber'] === '')
 893                                                                                                 {
 894                                                                                                         $aSearch['sHouseNumber'] = $sToken;
 895                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 896                                                                                                         /*
 897                                                                                                         // Fall back to not searching for this item (better than nothing)
 898                                                                                                         $aSearch = $aCurrentSearch;
 899                                                                                                         $aSearch['iSearchRank'] += 1;
 900                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 901                                                                                                          */
 902                                                                                                 }
 903                                                                                         }
 904                                                                                         elseif ($sPhraseType == '' && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null)
 905                                                                                         {
 906                                                                                                 if ($aSearch['sClass'] === '')
 907                                                                                                 {
 908                                                                                                         $aSearch['sOperator'] = $aSearchTerm['operator'];
 909                                                                                                         $aSearch['sClass'] = $aSearchTerm['class'];
 910                                                                                                         $aSearch['sType'] = $aSearchTerm['type'];
 911                                                                                                         if (sizeof($aSearch['aName'])) $aSearch['sOperator'] = 'name';
 912                                                                                                         else $aSearch['sOperator'] = 'near'; // near = in for the moment
 913                                                                                                         if (strlen($aSearchTerm['operator']) == 0) $aSearch['iSearchRank'] += 1;
 914
 915                                                                                                         // Do we have a shortcut id?
 916                                                                                                         if ($aSearch['sOperator'] == 'name')
 917                                                                                                         {
 918                                                                                                                 $sSQL = "select get_tagpair('".$aSearch['sClass']."', '".$aSearch['sType']."')";
 919                                                                                                                 if ($iAmenityID = $this->oDB->getOne($sSQL))
 920                                                                                                                 {
 921                                                                                                                         $aValidTokens[$aSearch['sClass'].':'.$aSearch['sType']] = array('word_id' => $iAmenityID);
 922                                                                                                                         $aSearch['aName'][$iAmenityID] = $iAmenityID;
 923                                                                                                                         $aSearch['sClass'] = '';
 924                                                                                                                         $aSearch['sType'] = '';
 925                                                                                                                 }
 926                                                                                                         }
 927                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 928                                                                                                 }
 929                                                                                         }
 930                                                                                         elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 931                                                                                         {
 932                                                                                                 if (sizeof($aSearch['aName']))
 933                                                                                                 {
 934                                                                                                         if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strlen($sToken) < 4 || strpos($sToken, ' ') !== false))
 935                                                                                                         {
 936                                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 937                                                                                                         }
 938                                                                                                         else
 939                                                                                                         {
 940                                                                                                                 $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 941                                                                                                                 $aSearch['iSearchRank'] += 1000; // skip;
 942                                                                                                         }
 943                                                                                                 }
 944                                                                                                 else
 945                                                                                                 {
 946                                                                                                         $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 947                                                                                                         //$aSearch['iNamePhrase'] = $iPhrase;
 948                                                                                                 }
 949                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 950                                                                                         }
 951                                                                                 }
 952                                                                         }
 953                                                                         if (isset($aValidTokens[$sToken]))
 954                                                                         {
 955                                                                                 // Allow searching for a word - but at extra cost
 956                                                                                 foreach($aValidTokens[$sToken] as $aSearchTerm)
 957                                                                                 {
 958                                                                                         if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 959                                                                                         {
 960                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && sizeof($aCurrentSearch['aName']) && strlen($sToken) >= 4)
 961                                                                                                 {
 962                                                                                                         $aSearch = $aCurrentSearch;
 963                                                                                                         $aSearch['iSearchRank'] += 1;
 964                                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 965                                                                                                         {
 966                                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 967                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 968                                                                                                         }
 969                                                                                                         elseif (isset($aValidTokens[' '.$sToken])) // revert to the token version?
 970                                                                                                         {
 971                                                                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTermToken)
 972                                                                                                                 {
 973                                                                                                                         if (empty($aSearchTermToken['country_code'])
 974                                                                                                                                         && empty($aSearchTermToken['lat'])
 975                                                                                                                                         && empty($aSearchTermToken['class']))
 976                                                                                                                         {
 977                                                                                                                                 $aSearch = $aCurrentSearch;
 978                                                                                                                                 $aSearch['iSearchRank'] += 1;
 979                                                                                                                                 $aSearch['aAddress'][$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
 980                                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 981                                                                                                                         }
 982                                                                                                                 }
 983                                                                                                         }
 984                                                                                                         else
 985                                                                                                         {
 986                                                                                                                 $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 987                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 988                                                                                                         }
 989                                                                                                 }
 990
 991                                                                                                 if (!sizeof($aCurrentSearch['aName']) || $aCurrentSearch['iNamePhrase'] == $iPhrase)
 992                                                                                                 {
 993                                                                                                         $aSearch = $aCurrentSearch;
 994                                                                                                         $aSearch['iSearchRank'] += 2;
 995                                                                                                         if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 996                                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 997                                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 998                                                                                                         else
 999                                                                                                                 $aSearch['aNameNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
1000                                                                                                         $aSearch['iNamePhrase'] = $iPhrase;
1001                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
1002                                                                                                 }
1003                                                                                         }
1004                                                                                 }
1005                                                                         }
1006                                                                         else
1007                                                                         {
1008                                                                                 // Allow skipping a word - but at EXTREAM cost
1009                                                                                 //$aSearch = $aCurrentSearch;
1010                                                                                 //$aSearch['iSearchRank']+=100;
1011                                                                                 //$aNewWordsetSearches[] = $aSearch;
1012                                                                         }
1013                                                                 }
1014                                                                 // Sort and cut
1015                                                                 usort($aNewWordsetSearches, 'bySearchRank');
1016                                                                 $aWordsetSearches = array_slice($aNewWordsetSearches, 0, 50);
1017                                                         }
1018                                                         //var_Dump('<hr>',sizeof($aWordsetSearches)); exit;
1019
1020                                                         $aNewPhraseSearches = array_merge($aNewPhraseSearches, $aNewWordsetSearches);
1021                                                         usort($aNewPhraseSearches, 'bySearchRank');
1022
1023                                                         $aSearchHash = array();
1024                                                         foreach($aNewPhraseSearches as $iSearch => $aSearch)
1025                                                         {
1026                                                                 $sHash = serialize($aSearch);
1027                                                                 if (isset($aSearchHash[$sHash])) unset($aNewPhraseSearches[$iSearch]);
1028                                                                 else $aSearchHash[$sHash] = 1;
1029                                                         }
1030
1031                                                         $aNewPhraseSearches = array_slice($aNewPhraseSearches, 0, 50);
1032                                                 }
1033
1034                                                 // Re-group the searches by their score, junk anything over 20 as just not worth trying
1035                                                 $aGroupedSearches = array();
1036                                                 foreach($aNewPhraseSearches as $aSearch)
1037                                                 {
1038                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank)
1039                                                         {
1040                                                                 if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
1041                                                                 $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1042                                                         }
1043                                                 }
1044                                                 ksort($aGroupedSearches);
1045
1046                                                 $iSearchCount = 0;
1047                                                 $aSearches = array();
1048                                                 foreach($aGroupedSearches as $iScore => $aNewSearches)
1049                                                 {
1050                                                         $iSearchCount += sizeof($aNewSearches);
1051                                                         $aSearches = array_merge($aSearches, $aNewSearches);
1052                                                         if ($iSearchCount > 50) break;
1053                                                 }
1054
1055                                                 //if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
1056
1057                                         }
1058
1059                                 }
1060                                 else
1061                                 {
1062                                         // Re-group the searches by their score, junk anything over 20 as just not worth trying
1063                                         $aGroupedSearches = array();
1064                                         foreach($aSearches as $aSearch)
1065                                         {
1066                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank)
1067                                                 {
1068                                                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
1069                                                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1070                                                 }
1071                                         }
1072                                         ksort($aGroupedSearches);
1073                                 }
1074
1075                                 if (CONST_Debug) var_Dump($aGroupedSearches);
1076
1077                                 if ($this->bReverseInPlan)
1078                                 {
1079                                         $aCopyGroupedSearches = $aGroupedSearches;
1080                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
1081                                         {
1082                                                 foreach($aSearches as $iSearch => $aSearch)
1083                                                 {
1084                                                         if (sizeof($aSearch['aAddress']))
1085                                                         {
1086                                                                 $iReverseItem = array_pop($aSearch['aAddress']);
1087                                                                 if (isset($aPossibleMainWordIDs[$iReverseItem]))
1088                                                                 {
1089                                                                         $aSearch['aAddress'] = array_merge($aSearch['aAddress'], $aSearch['aName']);
1090                                                                         $aSearch['aName'] = array($iReverseItem);
1091                                                                         $aGroupedSearches[$iGroup][] = $aSearch;
1092                                                                 }
1093                                                                 //$aReverseSearch['aName'][$iReverseItem] = $iReverseItem;
1094                                                                 //$aGroupedSearches[$iGroup][] = $aReverseSearch;
1095                                                         }
1096                                                 }
1097                                         }
1098                                 }
1099
1100                                 if (CONST_Search_TryDroppedAddressTerms && sizeof($aStructuredQuery) > 0)
1101                                 {
1102                                         $aCopyGroupedSearches = $aGroupedSearches;
1103                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
1104                                         {
1105                                                 foreach($aSearches as $iSearch => $aSearch)
1106                                                 {
1107                                                         $aReductionsList = array($aSearch['aAddress']);
1108                                                         $iSearchRank = $aSearch['iSearchRank'];
1109                                                         while(sizeof($aReductionsList) > 0)
1110                                                         {
1111                                                                 $iSearchRank += 5;
1112                                                                 if ($iSearchRank > iMaxRank) break 3;
1113                                                                 $aNewReductionsList = array();
1114                                                                 foreach($aReductionsList as $aReductionsWordList)
1115                                                                 {
1116                                                                         for ($iReductionWord = 0; $iReductionWord < sizeof($aReductionsWordList); $iReductionWord++)
1117                                                                         {
1118                                                                                 $aReductionsWordListResult = array_merge(array_slice($aReductionsWordList, 0, $iReductionWord), array_slice($aReductionsWordList, $iReductionWord+1));
1119                                                                                 $aReverseSearch = $aSearch;
1120                                                                                 $aSearch['aAddress'] = $aReductionsWordListResult;
1121                                                                                 $aSearch['iSearchRank'] = $iSearchRank;
1122                                                                                 $aGroupedSearches[$iSearchRank][] = $aReverseSearch;
1123                                                                                 if (sizeof($aReductionsWordListResult) > 0)
1124                                                                                 {
1125                                                                                         $aNewReductionsList[] = $aReductionsWordListResult;
1126                                                                                 }
1127                                                                         }
1128                                                                 }
1129                                                                 $aReductionsList = $aNewReductionsList;
1130                                                         }
1131                                                 }
1132                                         }
1133                                         ksort($aGroupedSearches);
1134                                 }
1135
1136                                 // Filter out duplicate searches
1137                                 $aSearchHash = array();
1138                                 foreach($aGroupedSearches as $iGroup => $aSearches)
1139                                 {
1140                                         foreach($aSearches as $iSearch => $aSearch)
1141                                         {
1142                                                 $sHash = serialize($aSearch);
1143                                                 if (isset($aSearchHash[$sHash]))
1144                                                 {
1145                                                         unset($aGroupedSearches[$iGroup][$iSearch]);
1146                                                         if (sizeof($aGroupedSearches[$iGroup]) == 0) unset($aGroupedSearches[$iGroup]);
1147                                                 }
1148                                                 else
1149                                                 {
1150                                                         $aSearchHash[$sHash] = 1;
1151                                                 }
1152                                         }
1153                                 }
1154
1155                                 if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
1156
1157                                 $iGroupLoop = 0;
1158                                 $iQueryLoop = 0;
1159                                 foreach($aGroupedSearches as $iGroupedRank => $aSearches)
1160                                 {
1161                                         $iGroupLoop++;
1162                                         foreach($aSearches as $aSearch)
1163                                         {
1164                                                 $iQueryLoop++;
1165
1166                                                 if (CONST_Debug) { echo "<hr><b>Search Loop, group $iGroupLoop, loop $iQueryLoop</b>"; }
1167                                                 if (CONST_Debug) _debugDumpGroupedSearches(array($iGroupedRank => array($aSearch)), $aValidTokens);
1168
1169                                                 // No location term?
1170                                                 if (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['fLon'])
1171                                                 {
1172                                                         if ($aSearch['sCountryCode'] && !$aSearch['sClass'] && !$aSearch['sHouseNumber'])
1173                                                         {
1174                                                                 // Just looking for a country by code - look it up
1175                                                                 if (4 >= $this->iMinAddressRank && 4 <= $this->iMaxAddressRank)
1176                                                                 {
1177                                                                         $sSQL = "select place_id from placex where calculated_country_code='".$aSearch['sCountryCode']."' and rank_search = 4";
1178                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1179                                                                         $sSQL .= " order by st_area(geometry) desc limit 1";
1180                                                                         if (CONST_Debug) var_dump($sSQL);
1181                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1182                                                                 }
1183                                                         }
1184                                                         else
1185                                                         {
1186                                                                 if (!$bBoundingBoxSearch && !$aSearch['fLon']) continue;
1187                                                                 if (!$aSearch['sClass']) continue;
1188                                                                 $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1189                                                                 if ($this->oDB->getOne($sSQL))
1190                                                                 {
1191                                                                         $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1192                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1193                                                                         $sSQL .= " where st_contains($this->sViewboxSmallSQL, ct.centroid)";
1194                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1195                                                                         if (sizeof($this->aExcludePlaceIDs))
1196                                                                         {
1197                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1198                                                                         }
1199                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1200                                                                         $sSQL .= " limit $this->iLimit";
1201                                                                         if (CONST_Debug) var_dump($sSQL);
1202                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1203
1204                                                                         // If excluded place IDs are given, it is fair to assume that
1205                                                                         // there have been results in the small box, so no further
1206                                                                         // expansion in that case.
1207                                                                         if (!sizeof($aPlaceIDs) && !sizeof($this->aExcludePlaceIDs))
1208                                                                         {
1209                                                                                 $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1210                                                                                 if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1211                                                                                 $sSQL .= " where st_contains($this->sViewboxLargeSQL, ct.centroid)";
1212                                                                                 if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1213                                                                                 if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1214                                                                                 $sSQL .= " limit $this->iLimit";
1215                                                                                 if (CONST_Debug) var_dump($sSQL);
1216                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1217                                                                         }
1218                                                                 }
1219                                                                 else
1220                                                                 {
1221                                                                         $sSQL = "select place_id from placex where class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1222                                                                         $sSQL .= " and st_contains($this->sViewboxSmallSQL, geometry) and linked_place_id is null";
1223                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1224                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, centroid) asc";
1225                                                                         $sSQL .= " limit $this->iLimit";
1226                                                                         if (CONST_Debug) var_dump($sSQL);
1227                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1228                                                                 }
1229                                                         }
1230                                                 }
1231                                                 else
1232                                                 {
1233                                                         $aPlaceIDs = array();
1234
1235                                                         // First we need a position, either aName or fLat or both
1236                                                         $aTerms = array();
1237                                                         $aOrder = array();
1238
1239                                                         // TODO: filter out the pointless search terms (2 letter name tokens and less)
1240                                                         // they might be right - but they are just too darned expensive to run
1241                                                         if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'],",")."]";
1242                                                         //if (sizeof($aSearch['aNameNonSearch'])) $aTerms[] = "array_cat(name_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aNameNonSearch'],",")."]";
1243                                                         if (sizeof($aSearch['aAddress']) && $aSearch['aName'] != $aSearch['aAddress'])
1244                                                         {
1245                                                                 // For infrequent name terms disable index usage for address
1246                                                                 if (CONST_Search_NameOnlySearchFrequencyThreshold &&
1247                                                                                 sizeof($aSearch['aName']) == 1 &&
1248                                                                                 $aWordFrequencyScores[$aSearch['aName'][reset($aSearch['aName'])]] < CONST_Search_NameOnlySearchFrequencyThreshold)
1249                                                                 {
1250                                                                         //$aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join(array_merge($aSearch['aAddress'],$aSearch['aAddressNonSearch']),",")."]";
1251                                                                         $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddress'],",")."]";
1252                                                                 }
1253                                                                 else
1254                                                                 {
1255                                                                         $aTerms[] = "nameaddress_vector @> ARRAY[".join($aSearch['aAddress'],",")."]";
1256                                                                         //if (sizeof($aSearch['aAddressNonSearch'])) $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddressNonSearch'],",")."]";
1257                                                                 }
1258                                                         }
1259                                                         if ($aSearch['sCountryCode']) $aTerms[] = "country_code = '".pg_escape_string($aSearch['sCountryCode'])."'";
1260                                                         if ($aSearch['sHouseNumber']) $aTerms[] = "address_rank between 16 and 27";
1261                                                         if ($aSearch['fLon'] && $aSearch['fLat'])
1262                                                         {
1263                                                                 $aTerms[] = "ST_DWithin(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326), ".$aSearch['fRadius'].")";
1264                                                                 $aOrder[] = "ST_Distance(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326)) ASC";
1265                                                         }
1266                                                         if (sizeof($this->aExcludePlaceIDs))
1267                                                         {
1268                                                                 $aTerms[] = "place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1269                                                         }
1270                                                         if ($sCountryCodesSQL)
1271                                                         {
1272                                                                 $aTerms[] = "country_code in ($sCountryCodesSQL)";
1273                                                         }
1274
1275                                                         if ($bBoundingBoxSearch) $aTerms[] = "centroid && $this->sViewboxSmallSQL";
1276                                                         if ($sNearPointSQL) $aOrder[] = "ST_Distance($sNearPointSQL, centroid) asc";
1277
1278                                                         if ($aSearch['sHouseNumber'])
1279                                                         {
1280                                                                 $sImportanceSQL = '- abs(26 - address_rank) + 3';
1281                                                         }
1282                                                         else
1283                                                         {
1284                                                                 $sImportanceSQL = '(case when importance = 0 OR importance IS NULL then 0.75-(search_rank::float/40) else importance end)';
1285                                                         }
1286                                                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxSmallSQL, centroid) THEN 1 ELSE 0.5 END";
1287                                                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxLargeSQL, centroid) THEN 1 ELSE 0.5 END";
1288
1289                                                         $aOrder[] = "$sImportanceSQL DESC";
1290                                                         if (sizeof($aSearch['aFullNameAddress']))
1291                                                         {
1292                                                                 $sExactMatchSQL = '(select count(*) from (select unnest(ARRAY['.join($aSearch['aFullNameAddress'],",").']) INTERSECT select unnest(nameaddress_vector))s) as exactmatch';
1293                                                                 $aOrder[] = 'exactmatch DESC';
1294                                                         } else {
1295                                                                 $sExactMatchSQL = '0::int as exactmatch';
1296                                                         }
1297
1298                                                         if (sizeof($aTerms))
1299                                                         {
1300                                                                 $sSQL = "select place_id, ";
1301                                                                 $sSQL .= $sExactMatchSQL;
1302                                                                 $sSQL .= " from search_name";
1303                                                                 $sSQL .= " where ".join(' and ',$aTerms);
1304                                                                 $sSQL .= " order by ".join(', ',$aOrder);
1305                                                                 if ($aSearch['sHouseNumber'] || $aSearch['sClass'])
1306                                                                         $sSQL .= " limit 50";
1307                                                                 elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass'])
1308                                                                         $sSQL .= " limit 1";
1309                                                                 else
1310                                                                         $sSQL .= " limit ".$this->iLimit;
1311
1312                                                                 if (CONST_Debug) { var_dump($sSQL); }
1313                                                                 $aViewBoxPlaceIDs = $this->oDB->getAll($sSQL);
1314                                                                 if (PEAR::IsError($aViewBoxPlaceIDs))
1315                                                                 {
1316                                                                         failInternalError("Could not get places for search terms.", $sSQL, $aViewBoxPlaceIDs);
1317                                                                 }
1318                                                                 //var_dump($aViewBoxPlaceIDs);
1319                                                                 // Did we have an viewbox matches?
1320                                                                 $aPlaceIDs = array();
1321                                                                 $bViewBoxMatch = false;
1322                                                                 foreach($aViewBoxPlaceIDs as $aViewBoxRow)
1323                                                                 {
1324                                                                         //if ($bViewBoxMatch == 1 && $aViewBoxRow['in_small'] == 'f') break;
1325                                                                         //if ($bViewBoxMatch == 2 && $aViewBoxRow['in_large'] == 'f') break;
1326                                                                         //if ($aViewBoxRow['in_small'] == 't') $bViewBoxMatch = 1;
1327                                                                         //else if ($aViewBoxRow['in_large'] == 't') $bViewBoxMatch = 2;
1328                                                                         $aPlaceIDs[] = $aViewBoxRow['place_id'];
1329                                                                         $this->exactMatchCache[$aViewBoxRow['place_id']] = $aViewBoxRow['exactmatch'];
1330                                                                 }
1331                                                         }
1332                                                         //var_Dump($aPlaceIDs);
1333                                                         //exit;
1334
1335                                                         if ($aSearch['sHouseNumber'] && sizeof($aPlaceIDs))
1336                                                         {
1337                                                                 $aRoadPlaceIDs = $aPlaceIDs;
1338                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1339
1340                                                                 // Now they are indexed look for a house attached to a street we found
1341                                                                 $sHouseNumberRegex = '\\\\m'.str_replace(' ','[-,/ ]',$aSearch['sHouseNumber']).'\\\\M';
1342                                                                 $sSQL = "select place_id from placex where parent_place_id in (".$sPlaceIDs.") and housenumber ~* E'".$sHouseNumberRegex."'";
1343                                                                 if (sizeof($this->aExcludePlaceIDs))
1344                                                                 {
1345                                                                         $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1346                                                                 }
1347                                                                 $sSQL .= " limit $this->iLimit";
1348                                                                 if (CONST_Debug) var_dump($sSQL);
1349                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1350
1351                                                                 // If not try the aux fallback table
1352                                                                 /*
1353                                                                 if (!sizeof($aPlaceIDs))
1354                                                                 {
1355                                                                         $sSQL = "select place_id from location_property_aux where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1356                                                                         if (sizeof($this->aExcludePlaceIDs))
1357                                                                         {
1358                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1359                                                                         }
1360                                                                         //$sSQL .= " limit $this->iLimit";
1361                                                                         if (CONST_Debug) var_dump($sSQL);
1362                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1363                                                                 }
1364                                                                 */
1365
1366                                                                 if (!sizeof($aPlaceIDs))
1367                                                                 {
1368                                                                         $sSQL = "select place_id from location_property_tiger where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1369                                                                         if (sizeof($this->aExcludePlaceIDs))
1370                                                                         {
1371                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1372                                                                         }
1373                                                                         //$sSQL .= " limit $this->iLimit";
1374                                                                         if (CONST_Debug) var_dump($sSQL);
1375                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1376                                                                 }
1377
1378                                                                 // Fallback to the road
1379                                                                 if (!sizeof($aPlaceIDs) && preg_match('/[0-9]+/', $aSearch['sHouseNumber']))
1380                                                                 {
1381                                                                         $aPlaceIDs = $aRoadPlaceIDs;
1382                                                                 }
1383
1384                                                         }
1385
1386                                                         if ($aSearch['sClass'] && sizeof($aPlaceIDs))
1387                                                         {
1388                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1389                                                                 $aClassPlaceIDs = array();
1390
1391                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'name')
1392                                                                 {
1393                                                                         // If they were searching for a named class (i.e. 'Kings Head pub') then we might have an extra match
1394                                                                         $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1395                                                                         $sSQL .= " and linked_place_id is null";
1396                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1397                                                                         $sSQL .= " order by rank_search asc limit $this->iLimit";
1398                                                                         if (CONST_Debug) var_dump($sSQL);
1399                                                                         $aClassPlaceIDs = $this->oDB->getCol($sSQL);
1400                                                                 }
1401
1402                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') // & in
1403                                                                 {
1404                                                                         $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1405                                                                         $bCacheTable = $this->oDB->getOne($sSQL);
1406
1407                                                                         $sSQL = "select min(rank_search) from placex where place_id in ($sPlaceIDs)";
1408
1409                                                                         if (CONST_Debug) var_dump($sSQL);
1410                                                                         $this->iMaxRank = ((int)$this->oDB->getOne($sSQL));
1411
1412                                                                         // For state / country level searches the normal radius search doesn't work very well
1413                                                                         $sPlaceGeom = false;
1414                                                                         if ($this->iMaxRank < 9 && $bCacheTable)
1415                                                                         {
1416                                                                                 // Try and get a polygon to search in instead
1417                                                                                 $sSQL = "select geometry from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank + 5 and st_geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon') order by rank_search asc limit 1";
1418                                                                                 if (CONST_Debug) var_dump($sSQL);
1419                                                                                 $sPlaceGeom = $this->oDB->getOne($sSQL);
1420                                                                         }
1421
1422                                                                         if ($sPlaceGeom)
1423                                                                         {
1424                                                                                 $sPlaceIDs = false;
1425                                                                         }
1426                                                                         else
1427                                                                         {
1428                                                                                 $this->iMaxRank += 5;
1429                                                                                 $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank";
1430                                                                                 if (CONST_Debug) var_dump($sSQL);
1431                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1432                                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1433                                                                         }
1434
1435                                                                         if ($sPlaceIDs || $sPlaceGeom)
1436                                                                         {
1437
1438                                                                                 $fRange = 0.01;
1439                                                                                 if ($bCacheTable)
1440                                                                                 {
1441                                                                                         // More efficient - can make the range bigger
1442                                                                                         $fRange = 0.05;
1443
1444                                                                                         $sOrderBySQL = '';
1445                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.centroid)";
1446                                                                                         else if ($sPlaceIDs) $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
1447                                                                                         else if ($sPlaceGeom) $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
1448
1449                                                                                         $sSQL = "select distinct l.place_id".($sOrderBySQL?','.$sOrderBySQL:'')." from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." as l";
1450                                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
1451                                                                                         if ($sPlaceIDs)
1452                                                                                         {
1453                                                                                                 $sSQL .= ",placex as f where ";
1454                                                                                                 $sSQL .= "f.place_id in ($sPlaceIDs) and ST_DWithin(l.centroid, f.centroid, $fRange) ";
1455                                                                                         }
1456                                                                                         if ($sPlaceGeom)
1457                                                                                         {
1458                                                                                                 $sSQL .= " where ";
1459                                                                                                 $sSQL .= "ST_Contains('".$sPlaceGeom."', l.centroid) ";
1460                                                                                         }
1461                                                                                         if (sizeof($this->aExcludePlaceIDs))
1462                                                                                         {
1463                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1464                                                                                         }
1465                                                                                         if ($sCountryCodesSQL) $sSQL .= " and lp.calculated_country_code in ($sCountryCodesSQL)";
1466                                                                                         if ($sOrderBySQL) $sSQL .= "order by ".$sOrderBySQL." asc";
1467                                                                                         if ($iOffset) $sSQL .= " offset $iOffset";
1468                                                                                         $sSQL .= " limit $this->iLimit";
1469                                                                                         if (CONST_Debug) var_dump($sSQL);
1470                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1471                                                                                 }
1472                                                                                 else
1473                                                                                 {
1474                                                                                         if (isset($aSearch['fRadius']) && $aSearch['fRadius']) $fRange = $aSearch['fRadius'];
1475
1476                                                                                         $sOrderBySQL = '';
1477                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.geometry)";
1478                                                                                         else $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
1479
1480                                                                                         $sSQL = "select distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'')." from placex as l,placex as f where ";
1481                                                                                         $sSQL .= "f.place_id in ( $sPlaceIDs) and ST_DWithin(l.geometry, f.centroid, $fRange) ";
1482                                                                                         $sSQL .= "and l.class='".$aSearch['sClass']."' and l.type='".$aSearch['sType']."' ";
1483                                                                                         if (sizeof($this->aExcludePlaceIDs))
1484                                                                                         {
1485                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1486                                                                                         }
1487                                                                                         if ($sCountryCodesSQL) $sSQL .= " and l.calculated_country_code in ($sCountryCodesSQL)";
1488                                                                                         if ($sOrderBy) $sSQL .= "order by ".$OrderBysSQL." asc";
1489                                                                                         if ($iOffset) $sSQL .= " offset $iOffset";
1490                                                                                         $sSQL .= " limit $this->iLimit";
1491                                                                                         if (CONST_Debug) var_dump($sSQL);
1492                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1493                                                                                 }
1494                                                                         }
1495                                                                 }
1496
1497                                                                 $aPlaceIDs = $aClassPlaceIDs;
1498
1499                                                         }
1500
1501                                                 }
1502
1503                                                 if (PEAR::IsError($aPlaceIDs))
1504                                                 {
1505                                                         failInternalError("Could not get place IDs from tokens." ,$sSQL, $aPlaceIDs);
1506                                                 }
1507
1508                                                 if (CONST_Debug) { echo "<br><b>Place IDs:</b> "; var_Dump($aPlaceIDs); }
1509
1510                                                 foreach($aPlaceIDs as $iPlaceID)
1511                                                 {
1512                                                         $aResultPlaceIDs[$iPlaceID] = $iPlaceID;
1513                                                 }
1514                                                 if ($iQueryLoop > 20) break;
1515                                         }
1516
1517                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs) && ($this->iMinAddressRank != 0 || $this->iMaxAddressRank != 30))
1518                                         {
1519                                                 // Need to verify passes rank limits before dropping out of the loop (yuk!)
1520                                                 $sSQL = "select place_id from placex where place_id in (".join(',',$aResultPlaceIDs).") ";
1521                                                 $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
1522                                                 if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
1523                                                 if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
1524                                                 $sSQL .= ") UNION select place_id from location_property_tiger where place_id in (".join(',',$aResultPlaceIDs).") ";
1525                                                 $sSQL .= "and (30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
1526                                                 if ($this->aAddressRankList) $sSQL .= " OR 30 in (".join(',',$this->aAddressRankList).")";
1527                                                 $sSQL .= ")";
1528                                                 if (CONST_Debug) var_dump($sSQL);
1529                                                 $aResultPlaceIDs = $this->oDB->getCol($sSQL);
1530                                         }
1531
1532                                         //exit;
1533                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) break;
1534                                         if ($iGroupLoop > 4) break;
1535                                         if ($iQueryLoop > 30) break;
1536                                 }
1537
1538                                 // Did we find anything?
1539                                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs))
1540                                 {
1541                                         $aSearchResults = $this->getDetails($aResultPlaceIDs);
1542                                 }
1543
1544                         }
1545                         else
1546                         {
1547                                 // Just interpret as a reverse geocode
1548                                 $iPlaceID = geocodeReverse((float)$this->aNearPoint[0], (float)$this->aNearPoint[1]);
1549                                 if ($iPlaceID)
1550                                         $aSearchResults = $this->getDetails(array($iPlaceID));
1551                                 else
1552                                         $aSearchResults = array();
1553                         }
1554
1555                         // No results? Done
1556                         if (!sizeof($aSearchResults))
1557                         {
1558                                 if ($this->bFallback)
1559                                 {
1560                                         if ($this->fallbackStructuredQuery())
1561                                         {
1562                                                 return $this->lookup();
1563                                         }
1564                                 }
1565
1566                                 return array();
1567                         }
1568
1569                         $aClassType = getClassTypesWithImportance();
1570                         $aRecheckWords = preg_split('/\b/u',$sQuery);
1571                         foreach($aRecheckWords as $i => $sWord)
1572                         {
1573                                 if (!$sWord) unset($aRecheckWords[$i]);
1574                         }
1575
1576                         foreach($aSearchResults as $iResNum => $aResult)
1577                         {
1578                                 if (CONST_Search_AreaPolygons)
1579                                 {
1580                                         // Get the bounding box and outline polygon
1581                                         $sSQL = "select place_id,0 as numfeatures,st_area(geometry) as area,";
1582                                         $sSQL .= "ST_Y(centroid) as centrelat,ST_X(centroid) as centrelon,";
1583                                         $sSQL .= "ST_Y(ST_PointN(ST_ExteriorRing(Box2D(geometry)),4)) as minlat,ST_Y(ST_PointN(ST_ExteriorRing(Box2D(geometry)),2)) as maxlat,";
1584                                         $sSQL .= "ST_X(ST_PointN(ST_ExteriorRing(Box2D(geometry)),1)) as minlon,ST_X(ST_PointN(ST_ExteriorRing(Box2D(geometry)),3)) as maxlon";
1585                                         if ($this->bIncludePolygonAsGeoJSON) $sSQL .= ",ST_AsGeoJSON(geometry) as asgeojson";
1586                                         if ($this->bIncludePolygonAsKML) $sSQL .= ",ST_AsKML(geometry) as askml";
1587                                         if ($this->bIncludePolygonAsSVG) $sSQL .= ",ST_AsSVG(geometry) as assvg";
1588                                         if ($this->bIncludePolygonAsText || $this->bIncludePolygonAsPoints) $sSQL .= ",ST_AsText(geometry) as astext";
1589                                         $sSQL .= " from placex where place_id = ".$aResult['place_id'].' and st_geometrytype(Box2D(geometry)) = \'ST_Polygon\'';
1590                                         $aPointPolygon = $this->oDB->getRow($sSQL);
1591                                         if (PEAR::IsError($aPointPolygon))
1592                                         {
1593                                                 failInternalError("Could not get outline.", $sSQL, $aPointPolygon);
1594                                         }
1595
1596                                         if ($aPointPolygon['place_id'])
1597                                         {
1598                                                 if ($this->bIncludePolygonAsGeoJSON) $aResult['asgeojson'] = $aPointPolygon['asgeojson'];
1599                                                 if ($this->bIncludePolygonAsKML) $aResult['askml'] = $aPointPolygon['askml'];
1600                                                 if ($this->bIncludePolygonAsSVG) $aResult['assvg'] = $aPointPolygon['assvg'];
1601                                                 if ($this->bIncludePolygonAsText) $aResult['astext'] = $aPointPolygon['astext'];
1602
1603                                                 if ($aPointPolygon['centrelon'] !== null && $aPointPolygon['centrelat'] !== null )
1604                                                 {
1605                                                         $aResult['lat'] = $aPointPolygon['centrelat'];
1606                                                         $aResult['lon'] = $aPointPolygon['centrelon'];
1607                                                 }
1608
1609                                                 if ($this->bIncludePolygonAsPoints)
1610                                                 {
1611                                                         // Translate geometary string to point array
1612                                                         if (preg_match('#POLYGON\\(\\(([- 0-9.,]+)#',$aPointPolygon['astext'],$aMatch))
1613                                                         {
1614                                                                 preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/',$aMatch[1],$aPolyPoints,PREG_SET_ORDER);
1615                                                         }
1616                             /*
1617                                                         elseif (preg_match('#MULTIPOLYGON\\(\\(\\(([- 0-9.,]+)#',$aPointPolygon['astext'],$aMatch))
1618                                                         {
1619                                                                 preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/',$aMatch[1],$aPolyPoints,PREG_SET_ORDER);
1620                                                         }
1621                             */
1622                                                         elseif (preg_match('#POINT\\((-?[0-9.]+) (-?[0-9.]+)\\)#',$aPointPolygon['astext'],$aMatch))
1623                                                         {
1624                                                                 $fRadius = 0.01;
1625                                                                 $iSteps = ($fRadius * 40000)^2;
1626                                                                 $fStepSize = (2*pi())/$iSteps;
1627                                                                 $aPolyPoints = array();
1628                                                                 for($f = 0; $f < 2*pi(); $f += $fStepSize)
1629                                                                 {
1630                                                                         $aPolyPoints[] = array('',$aMatch[1]+($fRadius*sin($f)),$aMatch[2]+($fRadius*cos($f)));
1631                                                                 }
1632                                                                 $aPointPolygon['minlat'] = $aPointPolygon['minlat'] - $fRadius;
1633                                                                 $aPointPolygon['maxlat'] = $aPointPolygon['maxlat'] + $fRadius;
1634                                                                 $aPointPolygon['minlon'] = $aPointPolygon['minlon'] - $fRadius;
1635                                                                 $aPointPolygon['maxlon'] = $aPointPolygon['maxlon'] + $fRadius;
1636                                                         }
1637                                                 }
1638
1639                                                 // Output data suitable for display (points and a bounding box)
1640                                                 if ($this->bIncludePolygonAsPoints && isset($aPolyPoints))
1641                                                 {
1642                                                         $aResult['aPolyPoints'] = array();
1643                                                         foreach($aPolyPoints as $aPoint)
1644                                                         {
1645                                                                 $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1646                                                         }
1647                                                 }
1648                                                 $aResult['aBoundingBox'] = array($aPointPolygon['minlat'],$aPointPolygon['maxlat'],$aPointPolygon['minlon'],$aPointPolygon['maxlon']);
1649                                         }
1650                                 }
1651
1652                                 if ($aResult['extra_place'] == 'city')
1653                                 {
1654                                         $aResult['class'] = 'place';
1655                                         $aResult['type'] = 'city';
1656                                         $aResult['rank_search'] = 16;
1657                                 }
1658
1659                                 if (!isset($aResult['aBoundingBox']))
1660                                 {
1661                                         // Default
1662                                         $fDiameter = 0.0001;
1663
1664                                         if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1665                                                         && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1666                                         {
1667                                                 $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defzoom'];
1668                                         }
1669                                         elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1670                                                         && $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1671                                         {
1672                                                 $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'];
1673                                         }
1674                                         $fRadius = $fDiameter / 2;
1675
1676                                         $iSteps = max(8,min(100,$fRadius * 3.14 * 100000));
1677                                         $fStepSize = (2*pi())/$iSteps;
1678                                         $aPolyPoints = array();
1679                                         for($f = 0; $f < 2*pi(); $f += $fStepSize)
1680                                         {
1681                                                 $aPolyPoints[] = array('',$aResult['lon']+($fRadius*sin($f)),$aResult['lat']+($fRadius*cos($f)));
1682                                         }
1683                                         $aPointPolygon['minlat'] = $aResult['lat'] - $fRadius;
1684                                         $aPointPolygon['maxlat'] = $aResult['lat'] + $fRadius;
1685                                         $aPointPolygon['minlon'] = $aResult['lon'] - $fRadius;
1686                                         $aPointPolygon['maxlon'] = $aResult['lon'] + $fRadius;
1687
1688                                         // Output data suitable for display (points and a bounding box)
1689                                         if ($this->bIncludePolygonAsPoints)
1690                                         {
1691                                                 $aResult['aPolyPoints'] = array();
1692                                                 foreach($aPolyPoints as $aPoint)
1693                                                 {
1694                                                         $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1695                                                 }
1696                                         }
1697                                         $aResult['aBoundingBox'] = array((string)$aPointPolygon['minlat'],(string)$aPointPolygon['maxlat'],(string)$aPointPolygon['minlon'],(string)$aPointPolygon['maxlon']);
1698                                 }
1699
1700                                 // Is there an icon set for this type of result?
1701                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1702                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1703                                 {
1704                                         $aResult['icon'] = CONST_Website_BaseURL.'images/mapicons/'.$aClassType[$aResult['class'].':'.$aResult['type']]['icon'].'.p.20.png';
1705                                 }
1706
1707                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1708                                                 && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1709                                 {
1710                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'];
1711                                 }
1712                                 elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1713                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1714                                 {
1715                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type']]['label'];
1716                                 }
1717
1718                                 if ($this->bIncludeAddressDetails)
1719                                 {
1720                                         $aResult['address'] = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code']);
1721                                         if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city']))
1722                                         {
1723                                                 $aResult['address'] = array_merge(array('city' => array_shift(array_values($aResult['address']))), $aResult['address']);
1724                                         }
1725                                 }
1726
1727                                 // Adjust importance for the number of exact string matches in the result
1728                                 $aResult['importance'] = max(0.001,$aResult['importance']);
1729                                 $iCountWords = 0;
1730                                 $sAddress = $aResult['langaddress'];
1731                                 foreach($aRecheckWords as $i => $sWord)
1732                                 {
1733                                         if (stripos($sAddress, $sWord)!==false) $iCountWords++;
1734                                 }
1735
1736                                 $aResult['importance'] = $aResult['importance'] + ($iCountWords*0.1); // 0.1 is a completely arbitrary number but something in the range 0.1 to 0.5 would seem right
1737
1738                                 $aResult['name'] = $aResult['langaddress'];
1739                                 // secondary ordering (for results with same importance (the smaller the better):
1740                                 //   - approximate importance of address parts
1741                                 $aResult['foundorder'] = -$aResult['addressimportance']/10;
1742                                 //   - number of exact matches from the query
1743                                 if (isset($this->exactMatchCache[$aResult['place_id']]))
1744                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['place_id']];
1745                                 else if (isset($this->exactMatchCache[$aResult['parent_place_id']]))
1746                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['parent_place_id']];
1747                                 //  - importance of the class/type
1748                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1749                                         && $aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1750                                 {
1751                                         $aResult['foundorder'] = $aResult['foundorder'] + 0.000001 * $aClassType[$aResult['class'].':'.$aResult['type']]['importance'];
1752                                 }
1753                                 else
1754                                 {
1755                                         $aResult['foundorder'] = $aResult['foundorder'] + 0.001;
1756                                 }
1757                                 $aSearchResults[$iResNum] = $aResult;
1758                         }
1759                         uasort($aSearchResults, 'byImportance');
1760
1761                         $aOSMIDDone = array();
1762                         $aClassTypeNameDone = array();
1763                         $aToFilter = $aSearchResults;
1764                         $aSearchResults = array();
1765
1766                         $bFirst = true;
1767                         foreach($aToFilter as $iResNum => $aResult)
1768                         {
1769                                 if ($aResult['type'] == 'adminitrative') $aResult['type'] = 'administrative';
1770                                 $this->aExcludePlaceIDs[$aResult['place_id']] = $aResult['place_id'];
1771                                 if ($bFirst)
1772                                 {
1773                                         $fLat = $aResult['lat'];
1774                                         $fLon = $aResult['lon'];
1775                                         if (isset($aResult['zoom'])) $iZoom = $aResult['zoom'];
1776                                         $bFirst = false;
1777                                 }
1778                                 if (!$this->bDeDupe || (!isset($aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']])
1779                                                         && !isset($aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']])))
1780                                 {
1781                                         $aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']] = true;
1782                                         $aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']] = true;
1783                                         $aSearchResults[] = $aResult;
1784                                 }
1785
1786                                 // Absolute limit on number of results
1787                                 if (sizeof($aSearchResults) >= $this->iFinalLimit) break;
1788                         }
1789
1790                         return $aSearchResults;
1791
1792                 } // end lookup()
1793
1794
1795         } // end class
1796
1797
1798 /*
1799                 if (isset($_GET['route']) && $_GET['route'] && isset($_GET['routewidth']) && $_GET['routewidth'])
1800                 {
1801                         $aPoints = explode(',',$_GET['route']);
1802                         if (sizeof($aPoints) % 2 != 0)
1803                         {
1804                                 userError("Uneven number of points");
1805                                 exit;
1806                         }
1807                         $sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
1808                         $fPrevCoord = false;
1809                 }
1810 */