5 require_once(CONST_BasePath.'/lib/SpecialSearchOperator.php');
6 require_once(CONST_BasePath.'/lib/SearchContext.php');
9 * Description of a single interpretation of a search query.
11 class SearchDescription
13 /// Ranking how well the description fits the query.
14 private $iSearchRank = 0;
15 /// Country code of country the result must belong to.
16 private $sCountryCode = '';
17 /// List of word ids making up the name of the object.
18 private $aName = array();
19 /// List of word ids making up the address of the object.
20 private $aAddress = array();
21 /// Subset of word ids of full words making up the address.
22 private $aFullNameAddress = array();
23 /// List of word ids that appear in the name but should be ignored.
24 private $aNameNonSearch = array();
25 /// List of word ids that appear in the address but should be ignored.
26 private $aAddressNonSearch = array();
27 /// Kind of search for special searches, see Nominatim::Operator.
28 private $iOperator = Operator::NONE;
29 /// Class of special feature to search for.
31 /// Type of special feature to search for.
33 /// Housenumber of the object.
34 private $sHouseNumber = '';
35 /// Postcode for the object.
36 private $sPostcode = '';
37 /// Global search constraints.
40 // Temporary values used while creating the search description.
42 /// Index of phrase currently processed.
43 private $iNamePhrase = -1;
47 * Create an empty search description.
49 * @param object $oContext Global context to use. Will be inherited by
50 * all derived search objects.
52 public function __construct($oContext)
54 $this->oContext = $oContext;
58 * Get current search rank.
60 * The higher the search rank the lower the likelyhood that the
61 * search is a correct interpretation of the search query.
63 * @return integer Search rank.
65 public function getRank()
67 return $this->iSearchRank;
71 * Increase the search rank.
73 * @param integer $iAddRank Number of ranks to increase.
77 public function addToRank($iAddRank)
79 $this->iSearchRank += $iAddRank;
80 return $this->iSearchRank;
84 * Make this search a POI search.
86 * In a POI search, objects are not (only) searched by their name
87 * but also by the primary OSM key/value pair (class and type in Nominatim).
89 * @param integer $iOperator Type of POI search
90 * @param string $sClass Class (or OSM tag key) of POI.
91 * @param string $sType Type (or OSM tag value) of POI.
95 public function setPoiSearch($iOperator, $sClass, $sType)
97 $this->iOperator = $iOperator;
98 $this->sClass = $sClass;
99 $this->sType = $sType;
103 * Check if this might be a full address search.
105 * @return bool True if the search contains name, address and housenumber.
107 public function looksLikeFullAddress()
109 return sizeof($this->aName)
110 && (sizeof($this->aAddress || $this->sCountryCode))
111 && preg_match('/[0-9]+/', $this->sHouseNumber);
115 * Check if any operator is set.
117 * @return bool True, if this is a special search operation.
119 public function hasOperator()
121 return $this->iOperator != Operator::NONE;
125 * Extract key/value pairs from a query.
127 * Key/value pairs are recognised if they are of the form [<key>=<value>].
128 * If multiple terms of this kind are found then all terms are removed
129 * but only the first is used for search.
131 * @param string $sQuery Original query string.
133 * @return string The query string with the special search patterns removed.
135 public function extractKeyValuePairs($sQuery)
137 // Search for terms of kind [<key>=<value>].
139 '/\\[([\\w_]*)=([\\w_]*)\\]/',
145 foreach ($aSpecialTermsRaw as $aTerm) {
146 $sQuery = str_replace($aTerm[0], ' ', $sQuery);
147 if (!$this->hasOperator()) {
148 $this->setPoiSearch(Operator::TYPE, $aTerm[1], $aTerm[2]);
156 * Check if the combination of parameters is sensible.
158 * @param string[] $aCountryCodes List of country codes.
160 * @return bool True, if the search looks valid.
162 public function isValidSearch(&$aCountryCodes)
164 if (!sizeof($this->aName)) {
165 if ($this->sHouseNumber) {
170 && $this->sCountryCode
171 && !in_array($this->sCountryCode, $aCountryCodes)
179 /////////// Search building functions
183 * Derive new searches by adding a full term to the existing search.
185 * @param mixed[] $aSearchTerm Description of the token.
186 * @param bool $bWordInQuery True, if the normalised version of the word
187 * is contained in the query.
188 * @param bool $bHasPartial True if there are also tokens of partial terms
189 * with the same name.
190 * @param string $sPhraseType Type of phrase the token is contained in.
191 * @param bool $bFirstToken True if the token is at the beginning of the
193 * @param bool $bFirstPhrase True if the token is in the first phrase of
195 * @param bool $bLastToken True if the token is at the end of the query.
196 * @param integer $iGlobalRank Changable ranking of all searches in the
199 * @return SearchDescription[] List of derived search descriptions.
201 public function extendWithFullTerm($aSearchTerm, $bWordInQuery, $bHasPartial, $sPhraseType, $bFirstToken, $bFirstPhrase, $bLastToken, &$iGlobalRank)
203 $aNewSearches = array();
205 if (($sPhraseType == '' || $sPhraseType == 'country')
206 && !empty($aSearchTerm['country_code'])
207 && $aSearchTerm['country_code'] != '0'
209 if (!$this->sCountryCode) {
210 $oSearch = clone $this;
211 $oSearch->iSearchRank++;
212 $oSearch->sCountryCode = $aSearchTerm['country_code'];
213 // Country is almost always at the end of the string
214 // - increase score for finding it anywhere else (optimisation)
216 $oSearch->iSearchRank += 5;
218 $aNewSearches[] = $oSearch;
220 // If it is at the beginning, we can be almost sure that
221 // the terms are in the wrong order. Increase score for all searches.
226 } elseif (($sPhraseType == '' || $sPhraseType == 'postalcode')
227 && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'postcode'
229 // We need to try the case where the postal code is the primary element
230 // (i.e. no way to tell if it is (postalcode, city) OR (city, postalcode)
232 if (!$this->sPostcode && $bWordInQuery
233 && pg_escape_string($aSearchTerm['word']) == $aSearchTerm['word']
235 // If we have structured search or this is the first term,
236 // make the postcode the primary search element.
237 if ($this->iOperator == Operator::NONE
238 && ($sPhraseType == 'postalcode' || $bFirstToken)
240 $oSearch = clone $this;
241 $oSearch->iSearchRank++;
242 $oSearch->iOperator = Operator::POSTCODE;
243 $oSearch->aAddress = array_merge($this->aAddress, $this->aName);
245 array($aSearchTerm['word_id'] => $aSearchTerm['word']);
246 $aNewSearches[] = $oSearch;
249 // If we have a structured search or this is not the first term,
250 // add the postcode as an addendum.
251 if ($this->iOperator != Operator::POSTCODE
252 && ($sPhraseType == 'postalcode' || sizeof($this->aName))
254 $oSearch = clone $this;
255 $oSearch->iSearchRank++;
256 $oSearch->sPostcode = $aSearchTerm['word'];
257 $aNewSearches[] = $oSearch;
260 } elseif (($sPhraseType == '' || $sPhraseType == 'street')
261 && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house'
263 if (!$this->sHouseNumber && $this->iOperator != Operator::POSTCODE) {
264 $oSearch = clone $this;
265 $oSearch->iSearchRank++;
266 $oSearch->sHouseNumber = trim($aSearchTerm['word_token']);
267 // sanity check: if the housenumber is not mainly made
268 // up of numbers, add a penalty
269 if (preg_match_all("/[^0-9]/", $oSearch->sHouseNumber, $aMatches) > 2) {
270 $oSearch->iSearchRank++;
272 if (!isset($aSearchTerm['word_id'])) {
273 $oSearch->iSearchRank++;
275 // also must not appear in the middle of the address
276 if (sizeof($this->aAddress) || sizeof($this->aAddressNonSearch)) {
277 $oSearch->iSearchRank++;
279 $aNewSearches[] = $oSearch;
281 } elseif ($sPhraseType == ''
282 && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null
284 // require a normalized exact match of the term
285 // if we have the normalizer version of the query
287 if ($this->iOperator == Operator::NONE
288 && (isset($aSearchTerm['word']) && $aSearchTerm['word'])
291 $oSearch = clone $this;
292 $oSearch->iSearchRank++;
294 $iOp = Operator::NEAR; // near == in for the moment
295 if ($aSearchTerm['operator'] == '') {
296 if (sizeof($this->aName)) {
297 $iOp = Operator::NAME;
299 $oSearch->iSearchRank += 2;
302 $oSearch->setPoiSearch($iOp, $aSearchTerm['class'], $aSearchTerm['type']);
303 $aNewSearches[] = $oSearch;
305 } elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id']) {
306 $iWordID = $aSearchTerm['word_id'];
307 if (sizeof($this->aName)) {
308 if (($sPhraseType == '' || !$bFirstPhrase)
309 && $sPhraseType != 'country'
312 $oSearch = clone $this;
313 $oSearch->iSearchRank++;
314 $oSearch->aAddress[$iWordID] = $iWordID;
315 $aNewSearches[] = $oSearch;
317 $this->aFullNameAddress[$iWordID] = $iWordID;
320 $oSearch = clone $this;
321 $oSearch->iSearchRank++;
322 $oSearch->aName = array($iWordID => $iWordID);
323 $aNewSearches[] = $oSearch;
327 return $aNewSearches;
331 * Derive new searches by adding a partial term to the existing search.
333 * @param mixed[] $aSearchTerm Description of the token.
334 * @param bool $bStructuredPhrases True if the search is structured.
335 * @param integer $iPhrase Number of the phrase the token is in.
336 * @param mixed[] $aWordFrequencyScores Number of times tokens appears
337 * overall in a planet database.
338 * @param array[] $aFullTokens List of full term tokens with the
341 * @return SearchDescription[] List of derived search descriptions.
343 public function extendWithPartialTerm($aSearchTerm, $bStructuredPhrases, $iPhrase, &$aWordFrequencyScores, $aFullTokens)
345 // Only allow name terms.
346 if (!(isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])) {
350 $aNewSearches = array();
351 $iWordID = $aSearchTerm['word_id'];
353 if ((!$bStructuredPhrases || $iPhrase > 0)
354 && sizeof($this->aName)
355 && strpos($aSearchTerm['word_token'], ' ') === false
357 if ($aWordFrequencyScores[$iWordID] < CONST_Max_Word_Frequency) {
358 $oSearch = clone $this;
359 $oSearch->iSearchRank++;
360 $oSearch->aAddress[$iWordID] = $iWordID;
361 $aNewSearches[] = $oSearch;
363 $oSearch = clone $this;
364 $oSearch->iSearchRank++;
365 $oSearch->aAddressNonSearch[$iWordID] = $iWordID;
366 if (preg_match('#^[0-9]+$#', $aSearchTerm['word_token'])) {
367 $oSearch->iSearchRank += 2;
369 if (sizeof($aFullTokens)) {
370 $oSearch->iSearchRank++;
372 $aNewSearches[] = $oSearch;
374 // revert to the token version?
375 foreach ($aFullTokens as $aSearchTermToken) {
376 if (empty($aSearchTermToken['country_code'])
377 && empty($aSearchTermToken['lat'])
378 && empty($aSearchTermToken['class'])
380 $oSearch = clone $this;
381 $oSearch->iSearchRank++;
382 $oSearch->aAddress[$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
383 $aNewSearches[] = $oSearch;
389 if ((!$this->sPostcode && !$this->aAddress && !$this->aAddressNonSearch)
390 && (!sizeof($this->aName) || $this->iNamePhrase == $iPhrase)
392 $oSearch = clone $this;
393 $oSearch->iSearchRank++;
394 if (!sizeof($this->aName)) {
395 $oSearch->iSearchRank += 1;
397 if (preg_match('#^[0-9]+$#', $aSearchTerm['word_token'])) {
398 $oSearch->iSearchRank += 2;
400 if ($aWordFrequencyScores[$iWordID] < CONST_Max_Word_Frequency) {
401 $oSearch->aName[$iWordID] = $iWordID;
403 $oSearch->aNameNonSearch[$iWordID] = $iWordID;
405 $oSearch->iNamePhrase = $iPhrase;
406 $aNewSearches[] = $oSearch;
409 return $aNewSearches;
412 /////////// Query functions
416 * Query database for places that match this search.
418 * @param object $oDB Database connection to use.
419 * @param mixed[] $aWordFrequencyScores Number of times tokens appears
420 * overall in a planet database.
421 * @param mixed[] $aExactMatchCache Saves number of exact matches.
422 * @param integer $iMinRank Minimum address rank to restrict
424 * @param integer $iMaxRank Maximum address rank to restrict
426 * @param integer $iLimit Maximum number of results.
428 * @return mixed[] An array with two fields: IDs contains the list of
429 * matching place IDs and houseNumber the houseNumber
430 * if appicable or -1 if not.
432 public function query(&$oDB, &$aWordFrequencyScores, &$aExactMatchCache, $iMinRank, $iMaxRank, $iLimit)
434 $aPlaceIDs = array();
437 if ($this->sCountryCode
438 && !sizeof($this->aName)
441 && !$this->oContext->hasNearPoint()
443 // Just looking for a country - look it up
444 if (4 >= $iMinRank && 4 <= $iMaxRank) {
445 $aPlaceIDs = $this->queryCountry($oDB);
447 } elseif (!sizeof($this->aName) && !sizeof($this->aAddress)) {
448 // Neither name nor address? Then we must be
449 // looking for a POI in a geographic area.
450 if ($this->oContext->isBoundedSearch()) {
451 $aPlaceIDs = $this->queryNearbyPoi($oDB, $iLimit);
453 } elseif ($this->iOperator == Operator::POSTCODE) {
454 // looking for postcode
455 $aPlaceIDs = $this->queryPostcode($oDB, $iLimit);
458 // First search for places according to name and address.
459 $aNamedPlaceIDs = $this->queryNamedPlace(
461 $aWordFrequencyScores,
467 if (sizeof($aNamedPlaceIDs)) {
468 foreach ($aNamedPlaceIDs as $aRow) {
469 $aPlaceIDs[] = $aRow['place_id'];
470 $aExactMatchCache[$aRow['place_id']] = $aRow['exactmatch'];
474 //now search for housenumber, if housenumber provided
475 if ($this->sHouseNumber && sizeof($aPlaceIDs)) {
476 $aResult = $this->queryHouseNumber($oDB, $aPlaceIDs, $iLimit);
478 if (sizeof($aResult)) {
479 $iHousenumber = $aResult['iHouseNumber'];
480 $aPlaceIDs = $aResult['aPlaceIDs'];
481 } elseif (!$this->looksLikeFullAddress()) {
482 $aPlaceIDs = array();
486 // finally get POIs if requested
487 if ($this->sClass && sizeof($aPlaceIDs)) {
488 $aPlaceIDs = $this->queryPoiByOperator($oDB, $aPlaceIDs, $iLimit);
493 echo "<br><b>Place IDs:</b> ";
494 var_Dump($aPlaceIDs);
497 if (sizeof($aPlaceIDs) && $this->sPostcode) {
498 $sSQL = 'SELECT place_id FROM placex';
499 $sSQL .= ' WHERE place_id in ('.join(',', $aPlaceIDs).')';
500 $sSQL .= " AND postcode = '".$this->sPostcode."'";
501 if (CONST_Debug) var_dump($sSQL);
502 $aFilteredPlaceIDs = chksql($oDB->getCol($sSQL));
503 if ($aFilteredPlaceIDs) {
504 $aPlaceIDs = $aFilteredPlaceIDs;
506 echo "<br><b>Place IDs after postcode filtering:</b> ";
507 var_Dump($aPlaceIDs);
512 return array('IDs' => $aPlaceIDs, 'houseNumber' => $iHousenumber);
516 private function queryCountry(&$oDB)
518 $sSQL = 'SELECT place_id FROM placex ';
519 $sSQL .= "WHERE country_code='".$this->sCountryCode."'";
520 $sSQL .= ' AND rank_search = 4';
521 if ($this->oContext->bViewboxBounded) {
522 $sSQL .= ' AND ST_Intersects('.$this->oContext->sqlViewboxSmall.', geometry)';
524 $sSQL .= " ORDER BY st_area(geometry) DESC LIMIT 1";
526 if (CONST_Debug) var_dump($sSQL);
528 return chksql($oDB->getCol($sSQL));
531 private function queryNearbyPoi(&$oDB, $iLimit)
533 if (!$this->sClass) {
537 $sPoiTable = $this->poiTable();
539 $sSQL = 'SELECT count(*) FROM pg_tables WHERE tablename = \''.$sPoiTable."'";
540 if (chksql($oDB->getOne($sSQL))) {
541 $sSQL = 'SELECT place_id FROM '.$sPoiTable.' ct';
542 if ($this->oContext->sqlCountryList) {
543 $sSQL .= ' JOIN placex USING (place_id)';
545 if ($this->oContext->hasNearPoint()) {
546 $sSQL .= ' WHERE '.$this->oContext->withinSQL('ct.centroid');
547 } elseif ($this->oContext->bViewboxBounded) {
548 $sSQL .= ' WHERE ST_Contains('.$this->oContext->sqlViewboxSmall.', ct.centroid)';
550 if ($this->oContext->sqlCountryList) {
551 $sSQL .= ' AND country_code in '.$this->oContext->sqlCountryList;
553 $sSQL .= $this->oContext->excludeSQL(' AND place_id');
554 if ($this->oContext->sqlViewboxCentre) {
555 $sSQL .= ' ORDER BY ST_Distance(';
556 $sSQL .= $this->oContext->sqlViewboxCentre.', ct.centroid) ASC';
557 } elseif ($this->oContext->hasNearPoint()) {
558 $sSQL .= ' ORDER BY '.$this->oContext->distanceSQL('ct.centroid').' ASC';
560 $sSQL .= " limit $iLimit";
561 if (CONST_Debug) var_dump($sSQL);
562 return chksql($oDB->getCol($sSQL));
565 if ($this->oContext->hasNearPoint()) {
566 $sSQL = 'SELECT place_id FROM placex WHERE ';
567 $sSQL .= 'class=\''.$this->sClass."' and type='".$this->sType."'";
568 $sSQL .= ' AND '.$this->oContext->withinSQL('geometry');
569 $sSQL .= ' AND linked_place_id is null';
570 if ($this->oContext->sqlCountryList) {
571 $sSQL .= ' AND country_code in '.$this->oContext->sqlCountryList;
573 $sSQL .= ' ORDER BY '.$this->oContext->distanceSQL('centroid')." ASC";
574 $sSQL .= " LIMIT $iLimit";
575 if (CONST_Debug) var_dump($sSQL);
576 return chksql($oDB->getCol($sSQL));
582 private function queryPostcode(&$oDB, $iLimit)
584 $sSQL = 'SELECT p.place_id FROM location_postcode p ';
586 if (sizeof($this->aAddress)) {
587 $sSQL .= ', search_name s ';
588 $sSQL .= 'WHERE s.place_id = p.parent_place_id ';
589 $sSQL .= 'AND array_cat(s.nameaddress_vector, s.name_vector)';
590 $sSQL .= ' @> '.getArraySQL($this->aAddress).' AND ';
595 $sSQL .= "p.postcode = '".reset($this->aName)."'";
596 $sSQL .= $this->countryCodeSQL(' AND p.country_code');
597 $sSQL .= $this->oContext->excludeSQL(' AND p.place_id');
598 $sSQL .= " LIMIT $iLimit";
600 if (CONST_Debug) var_dump($sSQL);
602 return chksql($oDB->getCol($sSQL));
605 private function queryNamedPlace(&$oDB, $aWordFrequencyScores, $iMinAddressRank, $iMaxAddressRank, $iLimit)
610 if ($this->sHouseNumber && sizeof($this->aAddress)) {
611 $sHouseNumberRegex = '\\\\m'.$this->sHouseNumber.'\\\\M';
613 $aOrder[0] .= 'EXISTS(';
614 $aOrder[0] .= ' SELECT place_id';
615 $aOrder[0] .= ' FROM placex';
616 $aOrder[0] .= ' WHERE parent_place_id = search_name.place_id';
617 $aOrder[0] .= " AND transliteration(housenumber) ~* E'".$sHouseNumberRegex."'";
618 $aOrder[0] .= ' LIMIT 1';
620 // also housenumbers from interpolation lines table are needed
621 if (preg_match('/[0-9]+/', $this->sHouseNumber)) {
622 $iHouseNumber = intval($this->sHouseNumber);
623 $aOrder[0] .= 'OR EXISTS(';
624 $aOrder[0] .= ' SELECT place_id ';
625 $aOrder[0] .= ' FROM location_property_osmline ';
626 $aOrder[0] .= ' WHERE parent_place_id = search_name.place_id';
627 $aOrder[0] .= ' AND startnumber is not NULL';
628 $aOrder[0] .= ' AND '.$iHouseNumber.'>=startnumber ';
629 $aOrder[0] .= ' AND '.$iHouseNumber.'<=endnumber ';
630 $aOrder[0] .= ' LIMIT 1';
633 $aOrder[0] .= ') DESC';
636 if (sizeof($this->aName)) {
637 $aTerms[] = 'name_vector @> '.getArraySQL($this->aName);
639 if (sizeof($this->aAddress)) {
640 // For infrequent name terms disable index usage for address
641 if (CONST_Search_NameOnlySearchFrequencyThreshold
642 && sizeof($this->aName) == 1
643 && $aWordFrequencyScores[$this->aName[reset($this->aName)]]
644 < CONST_Search_NameOnlySearchFrequencyThreshold
646 $aTerms[] = 'array_cat(nameaddress_vector,ARRAY[]::integer[]) @> '.getArraySQL($this->aAddress);
648 $aTerms[] = 'nameaddress_vector @> '.getArraySQL($this->aAddress);
652 $sCountryTerm = $this->countryCodeSQL('country_code');
654 $aTerms[] = $sCountryTerm;
657 if ($this->sHouseNumber) {
658 $aTerms[] = "address_rank between 16 and 27";
659 } elseif (!$this->sClass || $this->iOperator == Operator::NAME) {
660 if ($iMinAddressRank > 0) {
661 $aTerms[] = "address_rank >= ".$iMinAddressRank;
663 if ($iMaxAddressRank < 30) {
664 $aTerms[] = "address_rank <= ".$iMaxAddressRank;
668 if ($this->oContext->hasNearPoint()) {
669 $aTerms[] = $this->oContext->withinSQL('centroid');
670 $aOrder[] = $this->oContext->distanceSQL('centroid');
671 } elseif ($this->sPostcode) {
672 if (!sizeof($this->aAddress)) {
673 $aTerms[] = "EXISTS(SELECT place_id FROM location_postcode p WHERE p.postcode = '".$this->sPostcode."' AND ST_DWithin(search_name.centroid, p.geometry, 0.1))";
675 $aOrder[] = "(SELECT min(ST_Distance(search_name.centroid, p.geometry)) FROM location_postcode p WHERE p.postcode = '".$this->sPostcode."')";
679 $sExcludeSQL = $this->oContext->excludeSQL('place_id');
681 $aTerms[] = $sExcludeSQL;
684 if ($this->oContext->bViewboxBounded) {
685 $aTerms[] = 'centroid && '.$this->oContext->sqlViewboxSmall;
688 if ($this->oContext->hasNearPoint()) {
689 $aOrder[] = $this->oContext->distanceSQL('centroid');
692 if ($this->sHouseNumber) {
693 $sImportanceSQL = '- abs(26 - address_rank) + 3';
695 $sImportanceSQL = '(CASE WHEN importance = 0 OR importance IS NULL THEN 0.75-(search_rank::float/40) ELSE importance END)';
697 $sImportanceSQL .= $this->oContext->viewboxImportanceSQL('centroid');
698 $aOrder[] = "$sImportanceSQL DESC";
700 if (sizeof($this->aFullNameAddress)) {
701 $sExactMatchSQL = ' ( ';
702 $sExactMatchSQL .= ' SELECT count(*) FROM ( ';
703 $sExactMatchSQL .= ' SELECT unnest('.getArraySQL($this->aFullNameAddress).')';
704 $sExactMatchSQL .= ' INTERSECT ';
705 $sExactMatchSQL .= ' SELECT unnest(nameaddress_vector)';
706 $sExactMatchSQL .= ' ) s';
707 $sExactMatchSQL .= ') as exactmatch';
708 $aOrder[] = 'exactmatch DESC';
710 $sExactMatchSQL = '0::int as exactmatch';
713 if ($this->sHouseNumber || $this->sClass) {
717 if (sizeof($aTerms)) {
718 $sSQL = 'SELECT place_id,'.$sExactMatchSQL;
719 $sSQL .= ' FROM search_name';
720 $sSQL .= ' WHERE '.join(' and ', $aTerms);
721 $sSQL .= ' ORDER BY '.join(', ', $aOrder);
722 $sSQL .= ' LIMIT '.$iLimit;
724 if (CONST_Debug) var_dump($sSQL);
728 "Could not get places for search terms."
735 private function queryHouseNumber(&$oDB, $aRoadPlaceIDs, $iLimit)
737 $sPlaceIDs = join(',', $aRoadPlaceIDs);
739 $sHouseNumberRegex = '\\\\m'.$this->sHouseNumber.'\\\\M';
740 $sSQL = 'SELECT place_id FROM placex ';
741 $sSQL .= 'WHERE parent_place_id in ('.$sPlaceIDs.')';
742 $sSQL .= " AND transliteration(housenumber) ~* E'".$sHouseNumberRegex."'";
743 $sSQL .= $this->oContext->excludeSQL(' AND place_id');
744 $sSQL .= " LIMIT $iLimit";
746 if (CONST_Debug) var_dump($sSQL);
748 $aPlaceIDs = chksql($oDB->getCol($sSQL));
750 if (sizeof($aPlaceIDs)) {
751 return array('aPlaceIDs' => $aPlaceIDs, 'iHouseNumber' => -1);
754 $bIsIntHouseNumber= (bool) preg_match('/[0-9]+/', $this->sHouseNumber);
755 $iHousenumber = intval($this->sHouseNumber);
756 if ($bIsIntHouseNumber) {
757 // if nothing found, search in the interpolation line table
758 $sSQL = 'SELECT distinct place_id FROM location_property_osmline';
759 $sSQL .= ' WHERE startnumber is not NULL';
760 $sSQL .= ' AND parent_place_id in ('.$sPlaceIDs.') AND (';
761 if ($iHousenumber % 2 == 0) {
762 // If housenumber is even, look for housenumber in streets
763 // with interpolationtype even or all.
764 $sSQL .= "interpolationtype='even'";
766 // Else look for housenumber with interpolationtype odd or all.
767 $sSQL .= "interpolationtype='odd'";
769 $sSQL .= " or interpolationtype='all') and ";
770 $sSQL .= $iHousenumber.">=startnumber and ";
771 $sSQL .= $iHousenumber."<=endnumber";
772 $sSQL .= $this->oContext->excludeSQL(' AND place_id');
773 $sSQL .= " limit $iLimit";
775 if (CONST_Debug) var_dump($sSQL);
777 $aPlaceIDs = chksql($oDB->getCol($sSQL, 0));
779 if (sizeof($aPlaceIDs)) {
780 return array('aPlaceIDs' => $aPlaceIDs, 'iHouseNumber' => $iHousenumber);
784 // If nothing found try the aux fallback table
785 if (CONST_Use_Aux_Location_data) {
786 $sSQL = 'SELECT place_id FROM location_property_aux';
787 $sSQL .= ' WHERE parent_place_id in ('.$sPlaceIDs.')';
788 $sSQL .= " AND housenumber = '".$this->sHouseNumber."'";
789 $sSQL .= $this->oContext->excludeSQL(' AND place_id');
790 $sSQL .= " limit $iLimit";
792 if (CONST_Debug) var_dump($sSQL);
794 $aPlaceIDs = chksql($oDB->getCol($sSQL));
796 if (sizeof($aPlaceIDs)) {
797 return array('aPlaceIDs' => $aPlaceIDs, 'iHouseNumber' => -1);
801 // If nothing found then search in Tiger data (location_property_tiger)
802 if (CONST_Use_US_Tiger_Data && $bIsIntHouseNumber) {
803 $sSQL = 'SELECT distinct place_id FROM location_property_tiger';
804 $sSQL .= ' WHERE parent_place_id in ('.$sPlaceIDs.') and (';
805 if ($iHousenumber % 2 == 0) {
806 $sSQL .= "interpolationtype='even'";
808 $sSQL .= "interpolationtype='odd'";
810 $sSQL .= " or interpolationtype='all') and ";
811 $sSQL .= $iHousenumber.">=startnumber and ";
812 $sSQL .= $iHousenumber."<=endnumber";
813 $sSQL .= $this->oContext->excludeSQL(' AND place_id');
814 $sSQL .= " limit $iLimit";
816 if (CONST_Debug) var_dump($sSQL);
818 $aPlaceIDs = chksql($oDB->getCol($sSQL, 0));
820 if (sizeof($aPlaceIDs)) {
821 return array('aPlaceIDs' => $aPlaceIDs, 'iHouseNumber' => $iHousenumber);
829 private function queryPoiByOperator(&$oDB, $aParentIDs, $iLimit)
831 $sPlaceIDs = join(',', $aParentIDs);
832 $aClassPlaceIDs = array();
834 if ($this->iOperator == Operator::TYPE || $this->iOperator == Operator::NAME) {
835 // If they were searching for a named class (i.e. 'Kings Head pub')
836 // then we might have an extra match
837 $sSQL = 'SELECT place_id FROM placex ';
838 $sSQL .= " WHERE place_id in ($sPlaceIDs)";
839 $sSQL .= " AND class='".$this->sClass."' ";
840 $sSQL .= " AND type='".$this->sType."'";
841 $sSQL .= " AND linked_place_id is null";
842 $sSQL .= $this->oContext->excludeSQL(' AND place_id');
843 $sSQL .= " ORDER BY rank_search ASC ";
844 $sSQL .= " LIMIT $iLimit";
846 if (CONST_Debug) var_dump($sSQL);
848 $aClassPlaceIDs = chksql($oDB->getCol($sSQL));
851 // NEAR and IN are handled the same
852 if ($this->iOperator == Operator::TYPE || $this->iOperator == Operator::NEAR) {
853 $sClassTable = $this->poiTable();
854 $sSQL = "SELECT count(*) FROM pg_tables WHERE tablename = '$sClassTable'";
855 $bCacheTable = (bool) chksql($oDB->getOne($sSQL));
857 $sSQL = "SELECT min(rank_search) FROM placex WHERE place_id in ($sPlaceIDs)";
858 if (CONST_Debug) var_dump($sSQL);
859 $iMaxRank = (int)chksql($oDB->getOne($sSQL));
861 // For state / country level searches the normal radius search doesn't work very well
863 if ($iMaxRank < 9 && $bCacheTable) {
864 // Try and get a polygon to search in instead
865 $sSQL = 'SELECT geometry FROM placex';
866 $sSQL .= " WHERE place_id in ($sPlaceIDs)";
867 $sSQL .= " AND rank_search < $iMaxRank + 5";
868 $sSQL .= " AND ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon')";
869 $sSQL .= " ORDER BY rank_search ASC ";
871 if (CONST_Debug) var_dump($sSQL);
872 $sPlaceGeom = chksql($oDB->getOne($sSQL));
879 $sSQL = 'SELECT place_id FROM placex';
880 $sSQL .= " WHERE place_id in ($sPlaceIDs) and rank_search < $iMaxRank";
881 if (CONST_Debug) var_dump($sSQL);
882 $aPlaceIDs = chksql($oDB->getCol($sSQL));
883 $sPlaceIDs = join(',', $aPlaceIDs);
886 if ($sPlaceIDs || $sPlaceGeom) {
889 // More efficient - can make the range bigger
893 if ($this->oContext->hasNearPoint()) {
894 $sOrderBySQL = $this->oContext->distanceSQL('l.centroid');
895 } elseif ($sPlaceIDs) {
896 $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
897 } elseif ($sPlaceGeom) {
898 $sOrderBySQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
901 $sSQL = 'SELECT distinct i.place_id';
903 $sSQL .= ', i.order_term';
905 $sSQL .= ' from (SELECT l.place_id';
907 $sSQL .= ','.$sOrderBySQL.' as order_term';
909 $sSQL .= ' from '.$sClassTable.' as l';
912 $sSQL .= ",placex as f WHERE ";
913 $sSQL .= "f.place_id in ($sPlaceIDs) ";
914 $sSQL .= " AND ST_DWithin(l.centroid, f.centroid, $fRange)";
915 } elseif ($sPlaceGeom) {
916 $sSQL .= " WHERE ST_Contains('$sPlaceGeom', l.centroid)";
919 $sSQL .= $this->oContext->excludeSQL(' AND l.place_id');
920 $sSQL .= 'limit 300) i ';
922 $sSQL .= 'order by order_term asc';
924 $sSQL .= " limit $iLimit";
926 if (CONST_Debug) var_dump($sSQL);
928 $aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($oDB->getCol($sSQL)));
930 if ($this->oContext->hasNearPoint()) {
931 $fRange = $this->oContext->nearRadius();
935 if ($this->oContext->hasNearPoint()) {
936 $sOrderBySQL = $this->oContext->distanceSQL('l.geometry');
938 $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
941 $sSQL = 'SELECT distinct l.place_id';
943 $sSQL .= ','.$sOrderBySQL.' as orderterm';
945 $sSQL .= ' FROM placex as l, placex as f';
946 $sSQL .= " WHERE f.place_id in ($sPlaceIDs)";
947 $sSQL .= " AND ST_DWithin(l.geometry, f.centroid, $fRange)";
948 $sSQL .= " AND l.class='".$this->sClass."'";
949 $sSQL .= " AND l.type='".$this->sType."'";
950 $sSQL .= $this->oContext->excludeSQL(' AND l.place_id');
952 $sSQL .= "ORDER BY orderterm ASC";
954 $sSQL .= " limit $iLimit";
956 if (CONST_Debug) var_dump($sSQL);
958 $aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($oDB->getCol($sSQL)));
963 return $aClassPlaceIDs;
966 private function poiTable()
968 return 'place_classtype_'.$this->sClass.'_'.$this->sType;
971 private function countryCodeSQL($sVar)
973 if ($this->sCountryCode) {
974 return $sVar.' = \''.$this->sCountryCode."'";
976 if ($this->oContext->sqlCountryList) {
977 return $sVar.' in '.$this->oContext->sqlCountryList;
983 /////////// Sort functions
986 public static function bySearchRank($a, $b)
988 if ($a->iSearchRank == $b->iSearchRank) {
989 return $a->iOperator + strlen($a->sHouseNumber)
990 - $b->iOperator - strlen($b->sHouseNumber);
993 return $a->iSearchRank < $b->iSearchRank ? -1 : 1;
996 //////////// Debugging functions
999 public function dumpAsHtmlTableRow(&$aWordIDs)
1001 $kf = function ($k) use (&$aWordIDs) {
1002 return $aWordIDs[$k];
1006 echo "<td>$this->iSearchRank</td>";
1007 echo "<td>".join(', ', array_map($kf, $this->aName))."</td>";
1008 echo "<td>".join(', ', array_map($kf, $this->aNameNonSearch))."</td>";
1009 echo "<td>".join(', ', array_map($kf, $this->aAddress))."</td>";
1010 echo "<td>".join(', ', array_map($kf, $this->aAddressNonSearch))."</td>";
1011 echo "<td>".$this->sCountryCode."</td>";
1012 echo "<td>".Operator::toString($this->iOperator)."</td>";
1013 echo "<td>".$this->sClass."</td>";
1014 echo "<td>".$this->sType."</td>";
1015 echo "<td>".$this->sPostcode."</td>";
1016 echo "<td>".$this->sHouseNumber."</td>";