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Allow for reverse geocode returning no results
[nominatim.git] / website / reverse.php
diff --git a/website/reverse.php b/website/reverse.php
index c155fa573030fa54cb5a71629727b808dc2be972..ee6a6100c8a4da0e4c6addd6058b0c951f66ecf3 100755 (executable)
--- a/website/reverse.php
+++ b/website/reverse.php
@@ -1,163 +1,65 @@
 <?php
 <?php
+       @define('CONST_ConnectionBucket_PageType', 'Reverse');
+
        require_once(dirname(dirname(__FILE__)).'/lib/init-website.php');
        require_once(CONST_BasePath.'/lib/log.php');
        require_once(dirname(dirname(__FILE__)).'/lib/init-website.php');
        require_once(CONST_BasePath.'/lib/log.php');
+       require_once(CONST_BasePath.'/lib/PlaceLookup.php');
+       require_once(CONST_BasePath.'/lib/ReverseGeocode.php');
 
 
-        if (strpos(CONST_BulkUserIPs, ','.$_SERVER["REMOTE_ADDR"].',') !== false)
-        {
-                $fLoadAvg = getLoadAverage();
-                if ($fLoadAvg > 2) sleep(60);
-                if ($fLoadAvg > 4) sleep(120);
-                if ($fLoadAvg > 6)
-                {
-                        echo "Bulk User: Temporary block due to high server load\n";
-                        exit;
-                }
-        }
+       if (strpos(CONST_BulkUserIPs, ','.$_SERVER["REMOTE_ADDR"].',') !== false)
+       {
+               $fLoadAvg = getLoadAverage();
+               if ($fLoadAvg > 2) sleep(60);
+               if ($fLoadAvg > 4) sleep(120);
+               if ($fLoadAvg > 6)
+               {
+                       echo "Bulk User: Temporary block due to high server load\n";
+                       exit;
+               }
+       }
 
 
-        $oDB =& getDB();
-        ini_set('memory_limit', '200M');
+       $oDB =& getDB();
+       ini_set('memory_limit', '200M');
 
 
-        // Format for output
-        $sOutputFormat = 'xml';
-        if (isset($_GET['format']) && ($_GET['format'] == 'xml' || $_GET['format'] == 'json' || $_GET['format'] == 'jsonv2'))
-        {
-                $sOutputFormat = $_GET['format'];
-        }
+       // Format for output
+       $sOutputFormat = 'xml';
+       if (isset($_GET['format']) && ($_GET['format'] == 'xml' || $_GET['format'] == 'json' || $_GET['format'] == 'jsonv2'))
+       {
+               $sOutputFormat = $_GET['format'];
+       }
 
        // Show address breakdown
        $bShowAddressDetails = true;
        if (isset($_GET['addressdetails'])) $bShowAddressDetails = (bool)$_GET['addressdetails'];
 
 
        // Show address breakdown
        $bShowAddressDetails = true;
        if (isset($_GET['addressdetails'])) $bShowAddressDetails = (bool)$_GET['addressdetails'];
 
-        // Preferred language
-        $aLangPrefOrder = getPreferredLanguages();
-        $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$aLangPrefOrder))."]";
+       // Preferred language
+       $aLangPrefOrder = getPreferredLanguages();
 
        $hLog = logStart($oDB, 'reverse', $_SERVER['QUERY_STRING'], $aLangPrefOrder);
 
 
        $hLog = logStart($oDB, 'reverse', $_SERVER['QUERY_STRING'], $aLangPrefOrder);
 
-        if (isset($_GET['osm_type']) && isset($_GET['osm_id']) && (int)$_GET['osm_id'] && ($_GET['osm_type'] == 'N' || $_GET['osm_type'] == 'W' || $_GET['osm_type'] == 'R'))
-        {
-                $iPlaceID = $oDB->getOne("select place_id from placex where osm_type = '".$_GET['osm_type']."' and osm_id = ".(int)$_GET['osm_id']." order by type = 'postcode' asc");
-               if (!$iPlaceID) $sError = 'OSM ID Not Found';
-        }
-       else
+       if (isset($_GET['osm_type']) && isset($_GET['osm_id']) && (int)$_GET['osm_id'] && ($_GET['osm_type'] == 'N' || $_GET['osm_type'] == 'W' || $_GET['osm_type'] == 'R'))
        {
        {
-               // Location to look up
-               $fLat = (float)$_GET['lat'];
-               $fLon = (float)$_GET['lon'];
-               $sPointSQL = "ST_SetSRID(ST_Point($fLon,$fLat),4326)";
-
-               // Zoom to rank, this could probably be calculated but a lookup gives fine control
-               $aZoomRank = array(
-                       0 => 2, // Continent / Sea
-                       1 => 2,
-                       2 => 2,
-                       3 => 4, // Country
-                       4 => 4,
-                       5 => 8, // State
-                       6 => 10, // Region
-                       7 => 10,
-                       8 => 12, // County
-                       9 => 12,
-                       10 => 17, // City
-                       11 => 17,
-                       12 => 18, // Town / Village
-                       13 => 18,
-                       14 => 22, // Suburb
-                       15 => 22,
-                       16 => 26, // Street, TODO: major street?
-                       17 => 26,
-                       18 => 30, // or >, Building
-                       19 => 30, // or >, Building
-                       );
-               $iMaxRank = (isset($_GET['zoom']) && isset($aZoomRank[$_GET['zoom']]))?$aZoomRank[$_GET['zoom']]:28;
-
-               // Find the nearest point
-               $fSearchDiam = 0.0001;
-               $iPlaceID = null;
-               $aArea = false;
-               $fMaxAreaDistance = 1;
-               while(!$iPlaceID && $fSearchDiam < $fMaxAreaDistance)
-               {
-                       $fSearchDiam = $fSearchDiam * 2;
-
-                       // If we have to expand the search area by a large amount then we need a larger feature
-                       // then there is a limit to how small the feature should be
-                       if ($fSearchDiam > 2 && $iMaxRank > 4) $iMaxRank = 4;
-                       if ($fSearchDiam > 1 && $iMaxRank > 9) $iMaxRank = 8;
-                       if ($fSearchDiam > 0.8 && $iMaxRank > 10) $iMaxRank = 10;
-                       if ($fSearchDiam > 0.6 && $iMaxRank > 12) $iMaxRank = 12;
-                       if ($fSearchDiam > 0.2 && $iMaxRank > 17) $iMaxRank = 17;
-                       if ($fSearchDiam > 0.1 && $iMaxRank > 18) $iMaxRank = 18;
-                       if ($fSearchDiam > 0.008 && $iMaxRank > 22) $iMaxRank = 22;
-                       if ($fSearchDiam > 0.001 && $iMaxRank > 26) $iMaxRank = 26;
+               $oPlaceLookup = new PlaceLookup($oDB);
+               $oPlaceLookup->setLanguagePreference($aLangPrefOrder);
+               $oPlaceLookup->setIncludeAddressDetails($bShowAddressDetails);
+               $oPlaceLookup->setOSMID($_GET['osm_type'], $_GET['osm_id']);
 
 
-                       $sSQL = 'select place_id,parent_place_id,rank_search from placex';
-                       $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
-                       $sSQL .= ' and rank_search != 28 and rank_search >= '.$iMaxRank;
-                       $sSQL .= ' and (name is not null or housenumber is not null)';
-                       $sSQL .= ' and class not in (\'waterway\',\'railway\',\'tunnel\',\'bridge\')';
-                       $sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
-                       $sSQL .= ' OR ST_DWithin('.$sPointSQL.', ST_Centroid(geometry), '.$fSearchDiam.'))';
-                       $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1';
-//var_dump($sSQL);
-                       $aPlace = $oDB->getRow($sSQL);
-                       if (PEAR::IsError($aPlace))
-                       {
-                               failInternalError("Could not determine closest place.", $sSQL, $iPlaceID); 
-                       }
-                       $iPlaceID = $aPlace['place_id'];
-                       $iParentPlaceID = $aPlace['parent_place_id'];
-               }
+               $aPlace = $oPlaceLookup->lookup();
 
 
-               // The point we found might be too small - use the address to find what it is a child of
-               if ($iPlaceID && $iMaxRank < 28)
-               {
-                       if ($aPlace['rank_search'] > 28 && $iParentPlaceID) {
-                               $iPlaceID = $iParentPlaceID;
-                       }
-                       $sSQL = "select address_place_id from place_addressline where place_id = $iPlaceID order by abs(cached_rank_address - $iMaxRank) asc,cached_rank_address desc,isaddress desc,distance desc limit 1";
-                       $iPlaceID = $oDB->getOne($sSQL);
-                       if (PEAR::IsError($iPlaceID))
-                       {
-                               failInternalError("Could not get parent for place.", $sSQL, $iPlaceID); 
-                       }
-                       if (!$iPlaceID)
-                       {
-                               $iPlaceID = $aPlace['place_id'];
-                       }
-               }
+               //if (!$iPlaceID) $sError = 'OSM ID Not Found';
        }
        }
-
-       if ($iPlaceID)
+       else
        {
        {
-               $sSQL = "select placex.*,";
-               $sSQL .= " get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
-               $sSQL .= " get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
-               $sSQL .= " get_name_by_language(name, ARRAY['ref']) as ref,";
-               $sSQL .= " st_y(st_centroid(geometry)) as lat, st_x(st_centroid(geometry)) as lon";
-               $sSQL .= " from placex where place_id = $iPlaceID ";
-//var_dump($sSQL);
-               $aPlace = $oDB->getRow($sSQL);
+               $oReverseGeocode = new ReverseGeocode($oDB);
+               $oReverseGeocode->setLanguagePreference($aLangPrefOrder);
+               $oReverseGeocode->setIncludeAddressDetails($bShowAddressDetails);
 
 
-               if ($bShowAddressDetails)
-               {
-                       $aAddress = getAddressDetails($oDB, $sLanguagePrefArraySQL, $iPlaceID, $aPlace['country_code']);
-               }
-               $aClassType = getClassTypes();
-               $sAddressType = '';
-               $sClassType = $aPlace['class'].':'.$aPlace['type'].':'.$aPlace['admin_level'];
-               if (isset($aClassType[$sClassType]) && isset($aClassType[$sClassType]['simplelabel']))
-               {
-                       $sAddressType = $aClassType[$aClassType]['simplelabel'];
-               }
-               else
-               {
-                       $sClassType = $aPlace['class'].':'.$aPlace['type'];
-                       if (isset($aClassType[$sClassType]) && isset($aClassType[$sClassType]['simplelabel']))
-                               $sAddressType = $aClassType[$sClassType]['simplelabel'];
-                       else $sAddressType = $aPlace['class'];
-               }
-               $aPlace['addresstype'] = $sAddressType;
+               $oReverseGeocode->setLatLon($_GET['lat'], $_GET['lon']);
+               $oReverseGeocode->setZoom(@$_GET['zoom']);
 
 
+               $aPlace = $oReverseGeocode->lookup();
        }
        }
+
+       if (CONST_Debug) exit;
+
        include(CONST_BasePath.'/lib/template/address-'.$sOutputFormat.'.php');
        include(CONST_BasePath.'/lib/template/address-'.$sOutputFormat.'.php');
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