lib/Geocode.php

   1 <?php
   2
   3 namespace Nominatim;
   4
   5 require_once(CONST_BasePath.'/lib/NearPoint.php');
   6 require_once(CONST_BasePath.'/lib/PlaceLookup.php');
   7 require_once(CONST_BasePath.'/lib/ReverseGeocode.php');
   8
   9 class Geocode
  10 {
  11     protected $oDB;
  12
  13     protected $aLangPrefOrder = array();
  14
  15     protected $bIncludeAddressDetails = false;
  16     protected $bIncludeExtraTags = false;
  17     protected $bIncludeNameDetails = false;
  18
  19     protected $bIncludePolygonAsPoints = false;
  20     protected $bIncludePolygonAsText = false;
  21     protected $bIncludePolygonAsGeoJSON = false;
  22     protected $bIncludePolygonAsKML = false;
  23     protected $bIncludePolygonAsSVG = false;
  24     protected $fPolygonSimplificationThreshold = 0.0;
  25
  26     protected $aExcludePlaceIDs = array();
  27     protected $bDeDupe = true;
  28     protected $bReverseInPlan = false;
  29
  30     protected $iLimit = 20;
  31     protected $iFinalLimit = 10;
  32     protected $iOffset = 0;
  33     protected $bFallback = false;
  34
  35     protected $aCountryCodes = false;
  36
  37     protected $bBoundedSearch = false;
  38     protected $aViewBox = false;
  39     protected $sViewboxCentreSQL = false;
  40     protected $sViewboxSmallSQL = false;
  41     protected $sViewboxLargeSQL = false;
  42
  43     protected $iMaxRank = 20;
  44     protected $iMinAddressRank = 0;
  45     protected $iMaxAddressRank = 30;
  46     protected $aAddressRankList = array();
  47     protected $exactMatchCache = array();
  48
  49     protected $sAllowedTypesSQLList = false;
  50
  51     protected $sQuery = false;
  52     protected $aStructuredQuery = false;
  53
  54
  55     public function __construct(&$oDB)
  56     {
  57         $this->oDB =& $oDB;
  58     }
  59
  60     public function setReverseInPlan($bReverse)
  61     {
  62         $this->bReverseInPlan = $bReverse;
  63     }
  64
  65     public function setLanguagePreference($aLangPref)
  66     {
  67         $this->aLangPrefOrder = $aLangPref;
  68     }
  69
  70     public function getMoreUrlParams()
  71     {
  72         if ($this->aStructuredQuery) {
  73             $aParams = $this->aStructuredQuery;
  74         } else {
  75             $aParams = array('q' => $this->sQuery);
  76         }
  77
  78         if ($this->aExcludePlaceIDs) {
  79             $aParams['exclude_place_ids'] = implode(',', $this->aExcludePlaceIDs);
  80         }
  81
  82         if ($this->bIncludeAddressDetails) $aParams['addressdetails'] = '1';
  83         if ($this->bIncludeExtraTags) $aParams['extratags'] = '1';
  84         if ($this->bIncludeNameDetails) $aParams['namedetails'] = '1';
  85
  86         if ($this->bIncludePolygonAsPoints) $aParams['polygon'] = '1';
  87         if ($this->bIncludePolygonAsText) $aParams['polygon_text'] = '1';
  88         if ($this->bIncludePolygonAsGeoJSON) $aParams['polygon_geojson'] = '1';
  89         if ($this->bIncludePolygonAsKML) $aParams['polygon_kml'] = '1';
  90         if ($this->bIncludePolygonAsSVG) $aParams['polygon_svg'] = '1';
  91
  92         if ($this->fPolygonSimplificationThreshold > 0.0) {
  93             $aParams['polygon_threshold'] = $this->fPolygonSimplificationThreshold;
  94         }
  95
  96         if ($this->bBoundedSearch) $aParams['bounded'] = '1';
  97         if (!$this->bDeDupe) $aParams['dedupe'] = '0';
  98
  99         if ($this->aCountryCodes) {
 100             $aParams['countrycodes'] = implode(',', $this->aCountryCodes);
 101         }
 102
 103         if ($this->aViewBox) {
 104             $aParams['viewbox'] = $this->aViewBox[0].','.$this->aViewBox[3]
 105                                   .','.$this->aViewBox[2].','.$this->aViewBox[1];
 106         }
 107
 108         return $aParams;
 109     }
 110
 111     public function setIncludePolygonAsPoints($b = true)
 112     {
 113         $this->bIncludePolygonAsPoints = $b;
 114     }
 115
 116     public function setIncludePolygonAsText($b = true)
 117     {
 118         $this->bIncludePolygonAsText = $b;
 119     }
 120
 121     public function setIncludePolygonAsGeoJSON($b = true)
 122     {
 123         $this->bIncludePolygonAsGeoJSON = $b;
 124     }
 125
 126     public function setIncludePolygonAsKML($b = true)
 127     {
 128         $this->bIncludePolygonAsKML = $b;
 129     }
 130
 131     public function setIncludePolygonAsSVG($b = true)
 132     {
 133         $this->bIncludePolygonAsSVG = $b;
 134     }
 135
 136     public function setPolygonSimplificationThreshold($f)
 137     {
 138         $this->fPolygonSimplificationThreshold = $f;
 139     }
 140
 141     public function setLimit($iLimit = 10)
 142     {
 143         if ($iLimit > 50) $iLimit = 50;
 144         if ($iLimit < 1) $iLimit = 1;
 145
 146         $this->iFinalLimit = $iLimit;
 147         $this->iLimit = $iLimit + min($iLimit, 10);
 148     }
 149
 150     public function setFeatureType($sFeatureType)
 151     {
 152         switch ($sFeatureType) {
 153             case 'country':
 154                 $this->setRankRange(4, 4);
 155                 break;
 156             case 'state':
 157                 $this->setRankRange(8, 8);
 158                 break;
 159             case 'city':
 160                 $this->setRankRange(14, 16);
 161                 break;
 162             case 'settlement':
 163                 $this->setRankRange(8, 20);
 164                 break;
 165         }
 166     }
 167
 168     public function setRankRange($iMin, $iMax)
 169     {
 170         $this->iMinAddressRank = $iMin;
 171         $this->iMaxAddressRank = $iMax;
 172     }
 173
 174     public function setRoute($aRoutePoints, $fRouteWidth)
 175     {
 176         $this->aViewBox = false;
 177
 178         $this->sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
 179         $sSep = '';
 180         foreach ($aRoutePoints as $aPoint) {
 181             $fPoint = (float)$aPoint;
 182             $this->sViewboxCentreSQL .= $sSep.$fPoint;
 183             $sSep = ($sSep == ' ') ? ',' : ' ';
 184         }
 185         $this->sViewboxCentreSQL .= ")'::geometry,4326)";
 186
 187         $this->sViewboxSmallSQL = 'ST_BUFFER('.$this->sViewboxCentreSQL;
 188         $this->sViewboxSmallSQL .= ','.($fRouteWidth/69).')';
 189
 190         $this->sViewboxLargeSQL = 'ST_BUFFER('.$this->sViewboxCentreSQL;
 191         $this->sViewboxLargeSQL .= ','.($fRouteWidth/30).')';
 192     }
 193
 194     public function setViewbox($aViewbox)
 195     {
 196         $this->aViewBox = array_map('floatval', $aViewbox);
 197
 198         $this->aViewBox[0] = max(-180.0, min(180, $this->aViewBox[0]));
 199         $this->aViewBox[1] = max(-90.0, min(90, $this->aViewBox[1]));
 200         $this->aViewBox[2] = max(-180.0, min(180, $this->aViewBox[2]));
 201         $this->aViewBox[3] = max(-90.0, min(90, $this->aViewBox[3]));
 202
 203         if (abs($this->aViewBox[0] - $this->aViewBox[2]) < 0.000000001
 204             || abs($this->aViewBox[1] - $this->aViewBox[3]) < 0.000000001
 205         ) {
 206             userError("Bad parameter 'viewbox'. Not a box.");
 207         }
 208
 209         $fHeight = $this->aViewBox[0] - $this->aViewBox[2];
 210         $fWidth = $this->aViewBox[1] - $this->aViewBox[3];
 211         $aBigViewBox[0] = $this->aViewBox[0] + $fHeight;
 212         $aBigViewBox[2] = $this->aViewBox[2] - $fHeight;
 213         $aBigViewBox[1] = $this->aViewBox[1] + $fWidth;
 214         $aBigViewBox[3] = $this->aViewBox[3] - $fWidth;
 215
 216         $this->sViewboxCentreSQL = false;
 217         $this->sViewboxSmallSQL = sprintf(
 218             'ST_SetSRID(ST_MakeBox2D(ST_Point(%F,%F),ST_Point(%F,%F)),4326)',
 219             $this->aViewBox[0],
 220             $this->aViewBox[1],
 221             $this->aViewBox[2],
 222             $this->aViewBox[3]
 223         );
 224         $this->sViewboxLargeSQL = sprintf(
 225             'ST_SetSRID(ST_MakeBox2D(ST_Point(%F,%F),ST_Point(%F,%F)),4326)',
 226             $aBigViewBox[0],
 227             $aBigViewBox[1],
 228             $aBigViewBox[2],
 229             $aBigViewBox[3]
 230         );
 231     }
 232
 233     public function setQuery($sQueryString)
 234     {
 235         $this->sQuery = $sQueryString;
 236         $this->aStructuredQuery = false;
 237     }
 238
 239     public function getQueryString()
 240     {
 241         return $this->sQuery;
 242     }
 243
 244
 245     public function loadParamArray($oParams)
 246     {
 247         $this->bIncludeAddressDetails
 248          = $oParams->getBool('addressdetails', $this->bIncludeAddressDetails);
 249         $this->bIncludeExtraTags
 250          = $oParams->getBool('extratags', $this->bIncludeExtraTags);
 251         $this->bIncludeNameDetails
 252          = $oParams->getBool('namedetails', $this->bIncludeNameDetails);
 253
 254         $this->bBoundedSearch = $oParams->getBool('bounded', $this->bBoundedSearch);
 255         $this->bDeDupe = $oParams->getBool('dedupe', $this->bDeDupe);
 256
 257         $this->setLimit($oParams->getInt('limit', $this->iFinalLimit));
 258         $this->iOffset = $oParams->getInt('offset', $this->iOffset);
 259
 260         $this->bFallback = $oParams->getBool('fallback', $this->bFallback);
 261
 262         // List of excluded Place IDs - used for more acurate pageing
 263         $sExcluded = $oParams->getStringList('exclude_place_ids');
 264         if ($sExcluded) {
 265             foreach ($sExcluded as $iExcludedPlaceID) {
 266                 $iExcludedPlaceID = (int)$iExcludedPlaceID;
 267                 if ($iExcludedPlaceID)
 268                     $aExcludePlaceIDs[$iExcludedPlaceID] = $iExcludedPlaceID;
 269             }
 270
 271             if (isset($aExcludePlaceIDs))
 272                 $this->aExcludePlaceIDs = $aExcludePlaceIDs;
 273         }
 274
 275         // Only certain ranks of feature
 276         $sFeatureType = $oParams->getString('featureType');
 277         if (!$sFeatureType) $sFeatureType = $oParams->getString('featuretype');
 278         if ($sFeatureType) $this->setFeatureType($sFeatureType);
 279
 280         // Country code list
 281         $sCountries = $oParams->getStringList('countrycodes');
 282         if ($sCountries) {
 283             foreach ($sCountries as $sCountryCode) {
 284                 if (preg_match('/^[a-zA-Z][a-zA-Z]$/', $sCountryCode)) {
 285                     $aCountries[] = strtolower($sCountryCode);
 286                 }
 287             }
 288             if (isset($aCountries))
 289                 $this->aCountryCodes = $aCountries;
 290         }
 291
 292         $aViewbox = $oParams->getStringList('viewboxlbrt');
 293         if ($aViewbox) {
 294             if (count($aViewbox) != 4) {
 295                 userError("Bad parmater 'viewbox'. Expected 4 coordinates.");
 296             }
 297             $this->setViewbox($aViewbox);
 298         } else {
 299             $aViewbox = $oParams->getStringList('viewbox');
 300             if ($aViewbox) {
 301                 if (count($aViewbox) != 4) {
 302                     userError("Bad parmater 'viewbox'. Expected 4 coordinates.");
 303                 }
 304                 $this->setViewBox(array(
 305                                    $aViewbox[0],
 306                                    $aViewbox[3],
 307                                    $aViewbox[2],
 308                                    $aViewbox[1]
 309                                   ));
 310             } else {
 311                 $aRoute = $oParams->getStringList('route');
 312                 $fRouteWidth = $oParams->getFloat('routewidth');
 313                 if ($aRoute && $fRouteWidth) {
 314                     $this->setRoute($aRoute, $fRouteWidth);
 315                 }
 316             }
 317         }
 318     }
 319
 320     public function setQueryFromParams($oParams)
 321     {
 322         // Search query
 323         $sQuery = $oParams->getString('q');
 324         if (!$sQuery) {
 325             $this->setStructuredQuery(
 326                 $oParams->getString('amenity'),
 327                 $oParams->getString('street'),
 328                 $oParams->getString('city'),
 329                 $oParams->getString('county'),
 330                 $oParams->getString('state'),
 331                 $oParams->getString('country'),
 332                 $oParams->getString('postalcode')
 333             );
 334             $this->setReverseInPlan(false);
 335         } else {
 336             $this->setQuery($sQuery);
 337         }
 338     }
 339
 340     public function loadStructuredAddressElement($sValue, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank, $aItemListValues)
 341     {
 342         $sValue = trim($sValue);
 343         if (!$sValue) return false;
 344         $this->aStructuredQuery[$sKey] = $sValue;
 345         if ($this->iMinAddressRank == 0 && $this->iMaxAddressRank == 30) {
 346             $this->iMinAddressRank = $iNewMinAddressRank;
 347             $this->iMaxAddressRank = $iNewMaxAddressRank;
 348         }
 349         if ($aItemListValues) $this->aAddressRankList = array_merge($this->aAddressRankList, $aItemListValues);
 350         return true;
 351     }
 352
 353     public function setStructuredQuery($sAmenity = false, $sStreet = false, $sCity = false, $sCounty = false, $sState = false, $sCountry = false, $sPostalCode = false)
 354     {
 355         $this->sQuery = false;
 356
 357         // Reset
 358         $this->iMinAddressRank = 0;
 359         $this->iMaxAddressRank = 30;
 360         $this->aAddressRankList = array();
 361
 362         $this->aStructuredQuery = array();
 363         $this->sAllowedTypesSQLList = '';
 364
 365         $this->loadStructuredAddressElement($sAmenity, 'amenity', 26, 30, false);
 366         $this->loadStructuredAddressElement($sStreet, 'street', 26, 30, false);
 367         $this->loadStructuredAddressElement($sCity, 'city', 14, 24, false);
 368         $this->loadStructuredAddressElement($sCounty, 'county', 9, 13, false);
 369         $this->loadStructuredAddressElement($sState, 'state', 8, 8, false);
 370         $this->loadStructuredAddressElement($sPostalCode, 'postalcode', 5, 11, array(5, 11));
 371         $this->loadStructuredAddressElement($sCountry, 'country', 4, 4, false);
 372
 373         if (sizeof($this->aStructuredQuery) > 0) {
 374             $this->sQuery = join(', ', $this->aStructuredQuery);
 375             if ($this->iMaxAddressRank < 30) {
 376                 $sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 377             }
 378         }
 379     }
 380
 381     public function fallbackStructuredQuery()
 382     {
 383         if (!$this->aStructuredQuery) return false;
 384
 385         $aParams = $this->aStructuredQuery;
 386
 387         if (sizeof($aParams) == 1) return false;
 388
 389         $aOrderToFallback = array('postalcode', 'street', 'city', 'county', 'state');
 390
 391         foreach ($aOrderToFallback as $sType) {
 392             if (isset($aParams[$sType])) {
 393                 unset($aParams[$sType]);
 394                 $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 395                 return true;
 396             }
 397         }
 398
 399         return false;
 400     }
 401
 402     public function getDetails($aPlaceIDs)
 403     {
 404         //$aPlaceIDs is an array with key: placeID and value: tiger-housenumber, if found, else -1
 405         if (sizeof($aPlaceIDs) == 0) return array();
 406
 407         $sLanguagePrefArraySQL = "ARRAY[".join(',', array_map("getDBQuoted", $this->aLangPrefOrder))."]";
 408
 409         // Get the details for display (is this a redundant extra step?)
 410         $sPlaceIDs = join(',', array_keys($aPlaceIDs));
 411
 412         $sImportanceSQL = '';
 413         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " CASE WHEN ST_Contains($this->sViewboxSmallSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 414         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " CASE WHEN ST_Contains($this->sViewboxLargeSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 415
 416         $sSQL  = "SELECT ";
 417         $sSQL .= "    osm_type,";
 418         $sSQL .= "    osm_id,";
 419         $sSQL .= "    class,";
 420         $sSQL .= "    type,";
 421         $sSQL .= "    admin_level,";
 422         $sSQL .= "    rank_search,";
 423         $sSQL .= "    rank_address,";
 424         $sSQL .= "    min(place_id) AS place_id, ";
 425         $sSQL .= "    min(parent_place_id) AS parent_place_id, ";
 426         $sSQL .= "    country_code, ";
 427         $sSQL .= "    get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) AS langaddress,";
 428         $sSQL .= "    get_name_by_language(name, $sLanguagePrefArraySQL) AS placename,";
 429         $sSQL .= "    get_name_by_language(name, ARRAY['ref']) AS ref,";
 430         if ($this->bIncludeExtraTags) $sSQL .= "hstore_to_json(extratags)::text AS extra,";
 431         if ($this->bIncludeNameDetails) $sSQL .= "hstore_to_json(name)::text AS names,";
 432         $sSQL .= "    avg(ST_X(centroid)) AS lon, ";
 433         $sSQL .= "    avg(ST_Y(centroid)) AS lat, ";
 434         $sSQL .= "    ".$sImportanceSQL."COALESCE(importance,0.75-(rank_search::float/40)) AS importance, ";
 435         $sSQL .= "    ( ";
 436         $sSQL .= "       SELECT max(p.importance*(p.rank_address+2))";
 437         $sSQL .= "       FROM ";
 438         $sSQL .= "         place_addressline s, ";
 439         $sSQL .= "         placex p";
 440         $sSQL .= "       WHERE s.place_id = min(CASE WHEN placex.rank_search < 28 THEN placex.place_id ELSE placex.parent_place_id END)";
 441         $sSQL .= "         AND p.place_id = s.address_place_id ";
 442         $sSQL .= "         AND s.isaddress ";
 443         $sSQL .= "         AND p.importance is not null ";
 444         $sSQL .= "    ) AS addressimportance, ";
 445         $sSQL .= "    (extratags->'place') AS extra_place ";
 446         $sSQL .= " FROM placex";
 447         $sSQL .= " WHERE place_id in ($sPlaceIDs) ";
 448         $sSQL .= "   AND (";
 449         $sSQL .= "            placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
 450         if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) {
 451             $sSQL .= "        OR (extratags->'place') = 'city'";
 452         }
 453         if ($this->aAddressRankList) {
 454             $sSQL .= "        OR placex.rank_address in (".join(',', $this->aAddressRankList).")";
 455         }
 456         $sSQL .= "       ) ";
 457         if ($this->sAllowedTypesSQLList) {
 458             $sSQL .= "AND placex.class in $this->sAllowedTypesSQLList ";
 459         }
 460         $sSQL .= "    AND linked_place_id is null ";
 461         $sSQL .= " GROUP BY ";
 462         $sSQL .= "     osm_type, ";
 463         $sSQL .= "     osm_id, ";
 464         $sSQL .= "     class, ";
 465         $sSQL .= "     type, ";
 466         $sSQL .= "     admin_level, ";
 467         $sSQL .= "     rank_search, ";
 468         $sSQL .= "     rank_address, ";
 469         $sSQL .= "     country_code, ";
 470         $sSQL .= "     importance, ";
 471         if (!$this->bDeDupe) $sSQL .= "place_id,";
 472         $sSQL .= "     langaddress, ";
 473         $sSQL .= "     placename, ";
 474         $sSQL .= "     ref, ";
 475         if ($this->bIncludeExtraTags) $sSQL .= "extratags, ";
 476         if ($this->bIncludeNameDetails) $sSQL .= "name, ";
 477         $sSQL .= "     extratags->'place' ";
 478
 479         if (30 >= $this->iMinAddressRank && 30 <= $this->iMaxAddressRank) {
 480             // only Tiger housenumbers and interpolation lines need to be interpolated, because they are saved as lines
 481             // with start- and endnumber, the common osm housenumbers are usually saved as points
 482             $sHousenumbers = "";
 483             $i = 0;
 484             $length = count($aPlaceIDs);
 485             foreach ($aPlaceIDs as $placeID => $housenumber) {
 486                 $i++;
 487                 $sHousenumbers .= "(".$placeID.", ".$housenumber.")";
 488                 if ($i<$length) $sHousenumbers .= ", ";
 489             }
 490
 491             if (CONST_Use_US_Tiger_Data) {
 492                 // Tiger search only if a housenumber was searched and if it was found (i.e. aPlaceIDs[placeID] = housenumber != -1) (realized through a join)
 493                 $sSQL .= " union";
 494                 $sSQL .= " SELECT ";
 495                 $sSQL .= "     'T' AS osm_type, ";
 496                 $sSQL .= "     (SELECT osm_id from placex p WHERE p.place_id=min(blub.parent_place_id)) as osm_id, ";
 497                 $sSQL .= "     'place' AS class, ";
 498                 $sSQL .= "     'house' AS type, ";
 499                 $sSQL .= "     null AS admin_level, ";
 500                 $sSQL .= "     30 AS rank_search, ";
 501                 $sSQL .= "     30 AS rank_address, ";
 502                 $sSQL .= "     min(place_id) AS place_id, ";
 503                 $sSQL .= "     min(parent_place_id) AS parent_place_id, ";
 504                 $sSQL .= "     'us' AS country_code, ";
 505                 $sSQL .= "     get_address_by_language(place_id, housenumber_for_place, $sLanguagePrefArraySQL) AS langaddress,";
 506                 $sSQL .= "     null AS placename, ";
 507                 $sSQL .= "     null AS ref, ";
 508                 if ($this->bIncludeExtraTags) $sSQL .= "null AS extra,";
 509                 if ($this->bIncludeNameDetails) $sSQL .= "null AS names,";
 510                 $sSQL .= "     avg(st_x(centroid)) AS lon, ";
 511                 $sSQL .= "     avg(st_y(centroid)) AS lat,";
 512                 $sSQL .= "     ".$sImportanceSQL."-1.15 AS importance, ";
 513                 $sSQL .= "     (";
 514                 $sSQL .= "        SELECT max(p.importance*(p.rank_address+2))";
 515                 $sSQL .= "        FROM ";
 516                 $sSQL .= "          place_addressline s, ";
 517                 $sSQL .= "          placex p";
 518                 $sSQL .= "        WHERE s.place_id = min(blub.parent_place_id)";
 519                 $sSQL .= "          AND p.place_id = s.address_place_id ";
 520                 $sSQL .= "          AND s.isaddress";
 521                 $sSQL .= "          AND p.importance is not null";
 522                 $sSQL .= "     ) AS addressimportance, ";
 523                 $sSQL .= "     null AS extra_place ";
 524                 $sSQL .= " FROM (";
 525                 $sSQL .= "     SELECT place_id, ";    // interpolate the Tiger housenumbers here
 526                 $sSQL .= "         ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) AS centroid, ";
 527                 $sSQL .= "         parent_place_id, ";
 528                 $sSQL .= "         housenumber_for_place";
 529                 $sSQL .= "     FROM (";
 530                 $sSQL .= "            location_property_tiger ";
 531                 $sSQL .= "            JOIN (values ".$sHousenumbers.") AS housenumbers(place_id, housenumber_for_place) USING(place_id)) ";
 532                 $sSQL .= "     WHERE ";
 533                 $sSQL .= "         housenumber_for_place>=0";
 534                 $sSQL .= "         AND 30 between $this->iMinAddressRank AND $this->iMaxAddressRank";
 535                 $sSQL .= " ) AS blub"; //postgres wants an alias here
 536                 $sSQL .= " GROUP BY";
 537                 $sSQL .= "      place_id, ";
 538                 $sSQL .= "      housenumber_for_place"; //is this group by really needed?, place_id + housenumber (in combination) are unique
 539                 if (!$this->bDeDupe) $sSQL .= ", place_id ";
 540             }
 541             // osmline
 542             // interpolation line search only if a housenumber was searched and if it was found (i.e. aPlaceIDs[placeID] = housenumber != -1) (realized through a join)
 543             $sSQL .= " UNION ";
 544             $sSQL .= "SELECT ";
 545             $sSQL .= "  'W' AS osm_type, ";
 546             $sSQL .= "  osm_id, ";
 547             $sSQL .= "  'place' AS class, ";
 548             $sSQL .= "  'house' AS type, ";
 549             $sSQL .= "  null AS admin_level, ";
 550             $sSQL .= "  30 AS rank_search, ";
 551             $sSQL .= "  30 AS rank_address, ";
 552             $sSQL .= "  min(place_id) as place_id, ";
 553             $sSQL .= "  min(parent_place_id) AS parent_place_id, ";
 554             $sSQL .= "  country_code, ";
 555             $sSQL .= "  get_address_by_language(place_id, housenumber_for_place, $sLanguagePrefArraySQL) AS langaddress, ";
 556             $sSQL .= "  null AS placename, ";
 557             $sSQL .= "  null AS ref, ";
 558             if ($this->bIncludeExtraTags) $sSQL .= "null AS extra, ";
 559             if ($this->bIncludeNameDetails) $sSQL .= "null AS names, ";
 560             $sSQL .= "  AVG(st_x(centroid)) AS lon, ";
 561             $sSQL .= "  AVG(st_y(centroid)) AS lat, ";
 562             $sSQL .= "  ".$sImportanceSQL."-0.1 AS importance, ";  // slightly smaller than the importance for normal houses with rank 30, which is 0
 563             $sSQL .= "  (";
 564             $sSQL .= "     SELECT ";
 565             $sSQL .= "       MAX(p.importance*(p.rank_address+2)) ";
 566             $sSQL .= "     FROM";
 567             $sSQL .= "       place_addressline s, ";
 568             $sSQL .= "       placex p";
 569             $sSQL .= "     WHERE s.place_id = min(blub.parent_place_id) ";
 570             $sSQL .= "       AND p.place_id = s.address_place_id ";
 571             $sSQL .= "       AND s.isaddress ";
 572             $sSQL .= "       AND p.importance is not null";
 573             $sSQL .= "  ) AS addressimportance,";
 574             $sSQL .= "  null AS extra_place ";
 575             $sSQL .= "  FROM (";
 576             $sSQL .= "     SELECT ";
 577             $sSQL .= "         osm_id, ";
 578             $sSQL .= "         place_id, ";
 579             $sSQL .= "         country_code, ";
 580             $sSQL .= "         CASE ";             // interpolate the housenumbers here
 581             $sSQL .= "           WHEN startnumber != endnumber ";
 582             $sSQL .= "           THEN ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) ";
 583             $sSQL .= "           ELSE ST_LineInterpolatePoint(linegeo, 0.5) ";
 584             $sSQL .= "         END as centroid, ";
 585             $sSQL .= "         parent_place_id, ";
 586             $sSQL .= "         housenumber_for_place ";
 587             $sSQL .= "     FROM (";
 588             $sSQL .= "            location_property_osmline ";
 589             $sSQL .= "            JOIN (values ".$sHousenumbers.") AS housenumbers(place_id, housenumber_for_place) USING(place_id)";
 590             $sSQL .= "          ) ";
 591             $sSQL .= "     WHERE housenumber_for_place>=0 ";
 592             $sSQL .= "       AND 30 between $this->iMinAddressRank AND $this->iMaxAddressRank";
 593             $sSQL .= "  ) as blub"; //postgres wants an alias here
 594             $sSQL .= "  GROUP BY ";
 595             $sSQL .= "    osm_id, ";
 596             $sSQL .= "    place_id, ";
 597             $sSQL .= "    housenumber_for_place, ";
 598             $sSQL .= "    country_code "; //is this group by really needed?, place_id + housenumber (in combination) are unique
 599             if (!$this->bDeDupe) $sSQL .= ", place_id ";
 600
 601             if (CONST_Use_Aux_Location_data) {
 602                 $sSQL .= " UNION ";
 603                 $sSQL .= "  SELECT ";
 604                 $sSQL .= "     'L' AS osm_type, ";
 605                 $sSQL .= "     place_id AS osm_id, ";
 606                 $sSQL .= "     'place' AS class,";
 607                 $sSQL .= "     'house' AS type, ";
 608                 $sSQL .= "     null AS admin_level, ";
 609                 $sSQL .= "     0 AS rank_search,";
 610                 $sSQL .= "     0 AS rank_address, ";
 611                 $sSQL .= "     min(place_id) AS place_id,";
 612                 $sSQL .= "     min(parent_place_id) AS parent_place_id, ";
 613                 $sSQL .= "     'us' AS country_code, ";
 614                 $sSQL .= "     get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) AS langaddress, ";
 615                 $sSQL .= "     null AS placename, ";
 616                 $sSQL .= "     null AS ref, ";
 617                 if ($this->bIncludeExtraTags) $sSQL .= "null AS extra, ";
 618                 if ($this->bIncludeNameDetails) $sSQL .= "null AS names, ";
 619                 $sSQL .= "     avg(ST_X(centroid)) AS lon, ";
 620                 $sSQL .= "     avg(ST_Y(centroid)) AS lat, ";
 621                 $sSQL .= "     ".$sImportanceSQL."-1.10 AS importance, ";
 622                 $sSQL .= "     ( ";
 623                 $sSQL .= "       SELECT max(p.importance*(p.rank_address+2))";
 624                 $sSQL .= "       FROM ";
 625                 $sSQL .= "          place_addressline s, ";
 626                 $sSQL .= "          placex p";
 627                 $sSQL .= "       WHERE s.place_id = min(location_property_aux.parent_place_id)";
 628                 $sSQL .= "         AND p.place_id = s.address_place_id ";
 629                 $sSQL .= "         AND s.isaddress";
 630                 $sSQL .= "         AND p.importance is not null";
 631                 $sSQL .= "     ) AS addressimportance, ";
 632                 $sSQL .= "     null AS extra_place ";
 633                 $sSQL .= "  FROM location_property_aux ";
 634                 $sSQL .= "  WHERE place_id in ($sPlaceIDs) ";
 635                 $sSQL .= "    AND 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 636                 $sSQL .= "  GROUP BY ";
 637                 $sSQL .= "     place_id, ";
 638                 if (!$this->bDeDupe) $sSQL .= "place_id, ";
 639                 $sSQL .= "     get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) ";
 640             }
 641         }
 642
 643         $sSQL .= " order by importance desc";
 644         if (CONST_Debug) {
 645             echo "<hr>";
 646             var_dump($sSQL);
 647         }
 648         $aSearchResults = chksql(
 649             $this->oDB->getAll($sSQL),
 650             "Could not get details for place."
 651         );
 652
 653         return $aSearchResults;
 654     }
 655
 656     public function getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases, $sNormQuery)
 657     {
 658         /*
 659              Calculate all searches using aValidTokens i.e.
 660              'Wodsworth Road, Sheffield' =>
 661
 662              Phrase Wordset
 663              0      0       (wodsworth road)
 664              0      1       (wodsworth)(road)
 665              1      0       (sheffield)
 666
 667              Score how good the search is so they can be ordered
 668          */
 669         foreach ($aPhrases as $iPhrase => $sPhrase) {
 670             $aNewPhraseSearches = array();
 671             if ($bStructuredPhrases) $sPhraseType = $aPhraseTypes[$iPhrase];
 672             else $sPhraseType = '';
 673
 674             foreach ($aPhrases[$iPhrase]['wordsets'] as $iWordSet => $aWordset) {
 675                 // Too many permutations - too expensive
 676                 if ($iWordSet > 120) break;
 677
 678                 $aWordsetSearches = $aSearches;
 679
 680                 // Add all words from this wordset
 681                 foreach ($aWordset as $iToken => $sToken) {
 682                     //echo "<br><b>$sToken</b>";
 683                     $aNewWordsetSearches = array();
 684
 685                     foreach ($aWordsetSearches as $aCurrentSearch) {
 686                         //echo "<i>";
 687                         //var_dump($aCurrentSearch);
 688                         //echo "</i>";
 689
 690                         // If the token is valid
 691                         if (isset($aValidTokens[' '.$sToken])) {
 692                             foreach ($aValidTokens[' '.$sToken] as $aSearchTerm) {
 693                                 $aSearch = $aCurrentSearch;
 694                                 $aSearch['iSearchRank']++;
 695                                 if (($sPhraseType == '' || $sPhraseType == 'country') && !empty($aSearchTerm['country_code']) && $aSearchTerm['country_code'] != '0') {
 696                                     if ($aSearch['sCountryCode'] === false) {
 697                                         $aSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 698                                         // Country is almost always at the end of the string - increase score for finding it anywhere else (optimisation)
 699                                         if (($iToken+1 != sizeof($aWordset) || $iPhrase+1 != sizeof($aPhrases))) {
 700                                             $aSearch['iSearchRank'] += 5;
 701                                         }
 702                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 703                                     }
 704                                 } elseif (isset($aSearchTerm['lat']) && $aSearchTerm['lat'] !== '' && $aSearchTerm['lat'] !== null) {
 705                                     if ($aSearch['oNear'] === false) {
 706                                         $aSearch['oNear'] = new NearPoint(
 707                                             $aSearchTerm['lat'],
 708                                             $aSearchTerm['lon'],
 709                                             $aSearchTerm['radius']
 710                                         );
 711                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 712                                     }
 713                                 } elseif ($sPhraseType == 'postalcode') {
 714                                     // 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
 715                                     if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id']) {
 716                                         // If we already have a name try putting the postcode first
 717                                         if (sizeof($aSearch['aName'])) {
 718                                             $aNewSearch = $aSearch;
 719                                             $aNewSearch['aAddress'] = array_merge($aNewSearch['aAddress'], $aNewSearch['aName']);
 720                                             $aNewSearch['aName'] = array();
 721                                             $aNewSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 722                                             if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aNewSearch;
 723                                         }
 724
 725                                         if (sizeof($aSearch['aName'])) {
 726                                             if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strpos($sToken, ' ') !== false)) {
 727                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 728                                             } else {
 729                                                 $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 730                                                 $aSearch['iSearchRank'] += 1000; // skip;
 731                                             }
 732                                         } else {
 733                                             $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 734                                             //$aSearch['iNamePhrase'] = $iPhrase;
 735                                         }
 736                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 737                                     }
 738                                 } elseif (($sPhraseType == '' || $sPhraseType == 'street') && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house') {
 739                                     if ($aSearch['sHouseNumber'] === '') {
 740                                         $aSearch['sHouseNumber'] = $sToken;
 741                                         // sanity check: if the housenumber is not mainly made
 742                                         // up of numbers, add a penalty
 743                                         if (preg_match_all("/[^0-9]/", $sToken, $aMatches) > 2) $aSearch['iSearchRank']++;
 744                                         // also housenumbers should appear in the first or second phrase
 745                                         if ($iPhrase > 1) $aSearch['iSearchRank'] += 1;
 746                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 747                                         /*
 748                                         // Fall back to not searching for this item (better than nothing)
 749                                         $aSearch = $aCurrentSearch;
 750                                         $aSearch['iSearchRank'] += 1;
 751                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 752                                          */
 753                                     }
 754                                 } elseif ($sPhraseType == '' && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null) {
 755                                     // require a normalized exact match of the term
 756                                     // if we have the normalizer version of the query
 757                                     // available
 758                                     if ($aSearch['sClass'] === ''
 759                                         && ($sNormQuery === null || !($aSearchTerm['word'] && strpos($sNormQuery, $aSearchTerm['word']) === false))) {
 760                                         $aSearch['sClass'] = $aSearchTerm['class'];
 761                                         $aSearch['sType'] = $aSearchTerm['type'];
 762                                         if ($aSearchTerm['operator'] == '') {
 763                                             $aSearch['sOperator'] = sizeof($aSearch['aName']) ? 'name' :  'near';
 764                                             $aSearch['iSearchRank'] += 2;
 765                                         } else {
 766                                             $aSearch['sOperator'] = 'near'; // near = in for the moment
 767                                         }
 768
 769                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 770                                     }
 771                                 } elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id']) {
 772                                     if (sizeof($aSearch['aName'])) {
 773                                         if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strpos($sToken, ' ') !== false)) {
 774                                             $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 775                                         } else {
 776                                             $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 777                                             $aSearch['iSearchRank'] += 1000; // skip;
 778                                         }
 779                                     } else {
 780                                         $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 781                                         //$aSearch['iNamePhrase'] = $iPhrase;
 782                                     }
 783                                     if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 784                                 }
 785                             }
 786                         }
 787                         // Look for partial matches.
 788                         // Note that there is no point in adding country terms here
 789                         // because country are omitted in the address.
 790                         if (isset($aValidTokens[$sToken]) && $sPhraseType != 'country') {
 791                             // Allow searching for a word - but at extra cost
 792                             foreach ($aValidTokens[$sToken] as $aSearchTerm) {
 793                                 if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id']) {
 794                                     if ((!$bStructuredPhrases || $iPhrase > 0) && sizeof($aCurrentSearch['aName']) && strpos($sToken, ' ') === false) {
 795                                         $aSearch = $aCurrentSearch;
 796                                         $aSearch['iSearchRank'] += 1;
 797                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency) {
 798                                             $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 799                                             if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 800                                         } elseif (isset($aValidTokens[' '.$sToken])) { // revert to the token version?
 801                                             $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 802                                             $aSearch['iSearchRank'] += 1;
 803                                             if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 804                                             foreach ($aValidTokens[' '.$sToken] as $aSearchTermToken) {
 805                                                 if (empty($aSearchTermToken['country_code'])
 806                                                     && empty($aSearchTermToken['lat'])
 807                                                     && empty($aSearchTermToken['class'])
 808                                                 ) {
 809                                                     $aSearch = $aCurrentSearch;
 810                                                     $aSearch['iSearchRank'] += 1;
 811                                                     $aSearch['aAddress'][$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
 812                                                     if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 813                                                 }
 814                                             }
 815                                         } else {
 816                                             $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 817                                             if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 818                                             if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 819                                         }
 820                                     }
 821
 822                                     if (!sizeof($aCurrentSearch['aName']) || $aCurrentSearch['iNamePhrase'] == $iPhrase) {
 823                                         $aSearch = $aCurrentSearch;
 824                                         $aSearch['iSearchRank'] += 1;
 825                                         if (!sizeof($aCurrentSearch['aName'])) $aSearch['iSearchRank'] += 1;
 826                                         if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 827                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency) {
 828                                             $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 829                                         } else {
 830                                             $aSearch['aNameNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 831                                         }
 832                                         $aSearch['iNamePhrase'] = $iPhrase;
 833                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 834                                     }
 835                                 }
 836                             }
 837                         } else {
 838                             // Allow skipping a word - but at EXTREAM cost
 839                             //$aSearch = $aCurrentSearch;
 840                             //$aSearch['iSearchRank']+=100;
 841                             //$aNewWordsetSearches[] = $aSearch;
 842                         }
 843                     }
 844                     // Sort and cut
 845                     usort($aNewWordsetSearches, 'bySearchRank');
 846                     $aWordsetSearches = array_slice($aNewWordsetSearches, 0, 50);
 847                 }
 848                 //var_Dump('<hr>',sizeof($aWordsetSearches)); exit;
 849
 850                 $aNewPhraseSearches = array_merge($aNewPhraseSearches, $aNewWordsetSearches);
 851                 usort($aNewPhraseSearches, 'bySearchRank');
 852
 853                 $aSearchHash = array();
 854                 foreach ($aNewPhraseSearches as $iSearch => $aSearch) {
 855                     $sHash = serialize($aSearch);
 856                     if (isset($aSearchHash[$sHash])) unset($aNewPhraseSearches[$iSearch]);
 857                     else $aSearchHash[$sHash] = 1;
 858                 }
 859
 860                 $aNewPhraseSearches = array_slice($aNewPhraseSearches, 0, 50);
 861             }
 862
 863             // Re-group the searches by their score, junk anything over 20 as just not worth trying
 864             $aGroupedSearches = array();
 865             foreach ($aNewPhraseSearches as $aSearch) {
 866                 if ($aSearch['iSearchRank'] < $this->iMaxRank) {
 867                     if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
 868                     $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
 869                 }
 870             }
 871             ksort($aGroupedSearches);
 872
 873             $iSearchCount = 0;
 874             $aSearches = array();
 875             foreach ($aGroupedSearches as $iScore => $aNewSearches) {
 876                 $iSearchCount += sizeof($aNewSearches);
 877                 $aSearches = array_merge($aSearches, $aNewSearches);
 878                 if ($iSearchCount > 50) break;
 879             }
 880
 881             //if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
 882         }
 883         return $aGroupedSearches;
 884     }
 885
 886     /* Perform the actual query lookup.
 887
 888         Returns an ordered list of results, each with the following fields:
 889             osm_type: type of corresponding OSM object
 890                         N - node
 891                         W - way
 892                         R - relation
 893                         P - postcode (internally computed)
 894             osm_id: id of corresponding OSM object
 895             class: general object class (corresponds to tag key of primary OSM tag)
 896             type: subclass of object (corresponds to tag value of primary OSM tag)
 897             admin_level: see http://wiki.openstreetmap.org/wiki/Admin_level
 898             rank_search: rank in search hierarchy
 899                         (see also http://wiki.openstreetmap.org/wiki/Nominatim/Development_overview#Country_to_street_level)
 900             rank_address: rank in address hierarchy (determines orer in address)
 901             place_id: internal key (may differ between different instances)
 902             country_code: ISO country code
 903             langaddress: localized full address
 904             placename: localized name of object
 905             ref: content of ref tag (if available)
 906             lon: longitude
 907             lat: latitude
 908             importance: importance of place based on Wikipedia link count
 909             addressimportance: cumulated importance of address elements
 910             extra_place: type of place (for admin boundaries, if there is a place tag)
 911             aBoundingBox: bounding Box
 912             label: short description of the object class/type (English only)
 913             name: full name (currently the same as langaddress)
 914             foundorder: secondary ordering for places with same importance
 915     */
 916
 917
 918     public function lookup()
 919     {
 920         if (!$this->sQuery && !$this->aStructuredQuery) return array();
 921
 922         $oNormalizer = \Transliterator::createFromRules(CONST_Term_Normalization_Rules);
 923         if ($oNormalizer !== null) {
 924             $sNormQuery = $oNormalizer->transliterate($this->sQuery);
 925         } else {
 926             $sNormQuery = null;
 927         }
 928
 929         $sLanguagePrefArraySQL = "ARRAY[".join(',', array_map("getDBQuoted", $this->aLangPrefOrder))."]";
 930         $sCountryCodesSQL = false;
 931         if ($this->aCountryCodes) {
 932             $sCountryCodesSQL = join(',', array_map('addQuotes', $this->aCountryCodes));
 933         }
 934
 935         $sQuery = $this->sQuery;
 936         if (!preg_match('//u', $sQuery)) {
 937             userError("Query string is not UTF-8 encoded.");
 938         }
 939
 940         // Conflicts between US state abreviations and various words for 'the' in different languages
 941         if (isset($this->aLangPrefOrder['name:en'])) {
 942             $sQuery = preg_replace('/(^|,)\s*il\s*(,|$)/', '\1illinois\2', $sQuery);
 943             $sQuery = preg_replace('/(^|,)\s*al\s*(,|$)/', '\1alabama\2', $sQuery);
 944             $sQuery = preg_replace('/(^|,)\s*la\s*(,|$)/', '\1louisiana\2', $sQuery);
 945         }
 946
 947         $bBoundingBoxSearch = $this->bBoundedSearch && $this->sViewboxSmallSQL;
 948         if ($this->sViewboxCentreSQL) {
 949             // For complex viewboxes (routes) precompute the bounding geometry
 950             $sGeom = chksql(
 951                 $this->oDB->getOne("select ".$this->sViewboxSmallSQL),
 952                 "Could not get small viewbox"
 953             );
 954             $this->sViewboxSmallSQL = "'".$sGeom."'::geometry";
 955
 956             $sGeom = chksql(
 957                 $this->oDB->getOne("select ".$this->sViewboxLargeSQL),
 958                 "Could not get large viewbox"
 959             );
 960             $this->sViewboxLargeSQL = "'".$sGeom."'::geometry";
 961         }
 962
 963         // Do we have anything that looks like a lat/lon pair?
 964         $oNearPoint = false;
 965         if ($aLooksLike = NearPoint::extractFromQuery($sQuery)) {
 966             $oNearPoint = $aLooksLike['pt'];
 967             $sQuery = $aLooksLike['query'];
 968         }
 969
 970         $aSearchResults = array();
 971         if ($sQuery || $this->aStructuredQuery) {
 972             // Start with a blank search
 973             $aSearches = array(
 974                           array(
 975                            'iSearchRank' => 0,
 976                            'iNamePhrase' => -1,
 977                            'sCountryCode' => false,
 978                            'aName' => array(),
 979                            'aAddress' => array(),
 980                            'aFullNameAddress' => array(),
 981                            'aNameNonSearch' => array(),
 982                            'aAddressNonSearch' => array(),
 983                            'sOperator' => '',
 984                            'aFeatureName' => array(),
 985                            'sClass' => '',
 986                            'sType' => '',
 987                            'sHouseNumber' => '',
 988                            'oNear' => $oNearPoint
 989                           )
 990                          );
 991
 992             // Any 'special' terms in the search?
 993             $bSpecialTerms = false;
 994             preg_match_all('/\\[(.*)=(.*)\\]/', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 995             $aSpecialTerms = array();
 996             foreach ($aSpecialTermsRaw as $aSpecialTerm) {
 997                 $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 998                 $aSpecialTerms[strtolower($aSpecialTerm[1])] = $aSpecialTerm[2];
 999             }
1000
1001             preg_match_all('/\\[([\\w ]*)\\]/u', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
1002             $aSpecialTerms = array();
1003             if (isset($this->aStructuredQuery['amenity']) && $this->aStructuredQuery['amenity']) {
1004                 $aSpecialTermsRaw[] = array('['.$this->aStructuredQuery['amenity'].']', $this->aStructuredQuery['amenity']);
1005                 unset($this->aStructuredQuery['amenity']);
1006             }
1007
1008             foreach ($aSpecialTermsRaw as $aSpecialTerm) {
1009                 $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
1010                 $sToken = chksql($this->oDB->getOne("SELECT make_standard_name('".$aSpecialTerm[1]."') AS string"));
1011                 $sSQL = 'SELECT * ';
1012                 $sSQL .= 'FROM ( ';
1013                 $sSQL .= '   SELECT word_id, word_token, word, class, type, country_code, operator';
1014                 $sSQL .= '   FROM word ';
1015                 $sSQL .= '   WHERE word_token in (\' '.$sToken.'\')';
1016                 $sSQL .= ') AS x ';
1017                 $sSQL .= ' WHERE (class is not null AND class not in (\'place\')) ';
1018                 $sSQL .= ' OR country_code is not null';
1019                 if (CONST_Debug) var_Dump($sSQL);
1020                 $aSearchWords = chksql($this->oDB->getAll($sSQL));
1021                 $aNewSearches = array();
1022                 foreach ($aSearches as $aSearch) {
1023                     foreach ($aSearchWords as $aSearchTerm) {
1024                         $aNewSearch = $aSearch;
1025                         if ($aSearchTerm['country_code']) {
1026                             $aNewSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
1027                             $aNewSearches[] = $aNewSearch;
1028                             $bSpecialTerms = true;
1029                         }
1030                         if ($aSearchTerm['class']) {
1031                             $aNewSearch['sClass'] = $aSearchTerm['class'];
1032                             $aNewSearch['sType'] = $aSearchTerm['type'];
1033                             $aNewSearches[] = $aNewSearch;
1034                             $bSpecialTerms = true;
1035                         }
1036                     }
1037                 }
1038                 $aSearches = $aNewSearches;
1039             }
1040
1041             // Split query into phrases
1042             // Commas are used to reduce the search space by indicating where phrases split
1043             if ($this->aStructuredQuery) {
1044                 $aPhrases = $this->aStructuredQuery;
1045                 $bStructuredPhrases = true;
1046             } else {
1047                 $aPhrases = explode(',', $sQuery);
1048                 $bStructuredPhrases = false;
1049             }
1050
1051             // Convert each phrase to standard form
1052             // Create a list of standard words
1053             // Get all 'sets' of words
1054             // Generate a complete list of all
1055             $aTokens = array();
1056             foreach ($aPhrases as $iPhrase => $sPhrase) {
1057                 $aPhrase = chksql(
1058                     $this->oDB->getRow("SELECT make_standard_name('".pg_escape_string($sPhrase)."') as string"),
1059                     "Cannot normalize query string (is it a UTF-8 string?)"
1060                 );
1061                 if (trim($aPhrase['string'])) {
1062                     $aPhrases[$iPhrase] = $aPhrase;
1063                     $aPhrases[$iPhrase]['words'] = explode(' ', $aPhrases[$iPhrase]['string']);
1064                     $aPhrases[$iPhrase]['wordsets'] = getWordSets($aPhrases[$iPhrase]['words'], 0);
1065                     $aTokens = array_merge($aTokens, getTokensFromSets($aPhrases[$iPhrase]['wordsets']));
1066                 } else {
1067                     unset($aPhrases[$iPhrase]);
1068                 }
1069             }
1070
1071             // Reindex phrases - we make assumptions later on that they are numerically keyed in order
1072             $aPhraseTypes = array_keys($aPhrases);
1073             $aPhrases = array_values($aPhrases);
1074
1075             if (sizeof($aTokens)) {
1076                 // Check which tokens we have, get the ID numbers
1077                 $sSQL = 'SELECT word_id, word_token, word, class, type, country_code, operator, search_name_count';
1078                 $sSQL .= ' FROM word ';
1079                 $sSQL .= ' WHERE word_token in ('.join(',', array_map("getDBQuoted", $aTokens)).')';
1080
1081                 if (CONST_Debug) var_Dump($sSQL);
1082
1083                 $aValidTokens = array();
1084                 if (sizeof($aTokens)) {
1085                     $aDatabaseWords = chksql(
1086                         $this->oDB->getAll($sSQL),
1087                         "Could not get word tokens."
1088                     );
1089                 } else {
1090                     $aDatabaseWords = array();
1091                 }
1092                 $aPossibleMainWordIDs = array();
1093                 $aWordFrequencyScores = array();
1094                 foreach ($aDatabaseWords as $aToken) {
1095                     // Very special case - require 2 letter country param to match the country code found
1096                     if ($bStructuredPhrases && $aToken['country_code'] && !empty($this->aStructuredQuery['country'])
1097                         && strlen($this->aStructuredQuery['country']) == 2 && strtolower($this->aStructuredQuery['country']) != $aToken['country_code']
1098                     ) {
1099                         continue;
1100                     }
1101
1102                     if (isset($aValidTokens[$aToken['word_token']])) {
1103                         $aValidTokens[$aToken['word_token']][] = $aToken;
1104                     } else {
1105                         $aValidTokens[$aToken['word_token']] = array($aToken);
1106                     }
1107                     if (!$aToken['class'] && !$aToken['country_code']) $aPossibleMainWordIDs[$aToken['word_id']] = 1;
1108                     $aWordFrequencyScores[$aToken['word_id']] = $aToken['search_name_count'] + 1;
1109                 }
1110                 if (CONST_Debug) var_Dump($aPhrases, $aValidTokens);
1111
1112                 // Try and calculate GB postcodes we might be missing
1113                 foreach ($aTokens as $sToken) {
1114                     // Source of gb postcodes is now definitive - always use
1115                     if (preg_match('/^([A-Z][A-Z]?[0-9][0-9A-Z]? ?[0-9])([A-Z][A-Z])$/', strtoupper(trim($sToken)), $aData)) {
1116                         if (substr($aData[1], -2, 1) != ' ') {
1117                             $aData[0] = substr($aData[0], 0, strlen($aData[1])-1).' '.substr($aData[0], strlen($aData[1])-1);
1118                             $aData[1] = substr($aData[1], 0, -1).' '.substr($aData[1], -1, 1);
1119                         }
1120                         $aGBPostcodeLocation = gbPostcodeCalculate($aData[0], $aData[1], $aData[2], $this->oDB);
1121                         if ($aGBPostcodeLocation) {
1122                             $aValidTokens[$sToken] = $aGBPostcodeLocation;
1123                         }
1124                     } elseif (!isset($aValidTokens[$sToken]) && preg_match('/^([0-9]{5}) [0-9]{4}$/', $sToken, $aData)) {
1125                         // US ZIP+4 codes - if there is no token,
1126                         // merge in the 5-digit ZIP code
1127                         if (isset($aValidTokens[$aData[1]])) {
1128                             foreach ($aValidTokens[$aData[1]] as $aToken) {
1129                                 if (!$aToken['class']) {
1130                                     if (isset($aValidTokens[$sToken])) {
1131                                         $aValidTokens[$sToken][] = $aToken;
1132                                     } else {
1133                                         $aValidTokens[$sToken] = array($aToken);
1134                                     }
1135                                 }
1136                             }
1137                         }
1138                     }
1139                 }
1140
1141                 foreach ($aTokens as $sToken) {
1142                     // Unknown single word token with a number - assume it is a house number
1143                     if (!isset($aValidTokens[' '.$sToken]) && strpos($sToken, ' ') === false && preg_match('/[0-9]/', $sToken)) {
1144                         $aValidTokens[' '.$sToken] = array(array('class' => 'place', 'type' => 'house'));
1145                     }
1146                 }
1147
1148                 // Any words that have failed completely?
1149                 // TODO: suggestions
1150
1151                 // Start the search process
1152                 // array with: placeid => -1 | tiger-housenumber
1153                 $aResultPlaceIDs = array();
1154
1155                 $aGroupedSearches = $this->getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases, $sNormQuery);
1156
1157                 if ($this->bReverseInPlan) {
1158                     // Reverse phrase array and also reverse the order of the wordsets in
1159                     // the first and final phrase. Don't bother about phrases in the middle
1160                     // because order in the address doesn't matter.
1161                     $aPhrases = array_reverse($aPhrases);
1162                     $aPhrases[0]['wordsets'] = getInverseWordSets($aPhrases[0]['words'], 0);
1163                     if (sizeof($aPhrases) > 1) {
1164                         $aFinalPhrase = end($aPhrases);
1165                         $aPhrases[sizeof($aPhrases)-1]['wordsets'] = getInverseWordSets($aFinalPhrase['words'], 0);
1166                     }
1167                     $aReverseGroupedSearches = $this->getGroupedSearches($aSearches, null, $aPhrases, $aValidTokens, $aWordFrequencyScores, false, $sNormQuery);
1168
1169                     foreach ($aGroupedSearches as $aSearches) {
1170                         foreach ($aSearches as $aSearch) {
1171                             if ($aSearch['iSearchRank'] < $this->iMaxRank) {
1172                                 if (!isset($aReverseGroupedSearches[$aSearch['iSearchRank']])) $aReverseGroupedSearches[$aSearch['iSearchRank']] = array();
1173                                 $aReverseGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1174                             }
1175                         }
1176                     }
1177
1178                     $aGroupedSearches = $aReverseGroupedSearches;
1179                     ksort($aGroupedSearches);
1180                 }
1181             } else {
1182                 // Re-group the searches by their score, junk anything over 20 as just not worth trying
1183                 $aGroupedSearches = array();
1184                 foreach ($aSearches as $aSearch) {
1185                     if ($aSearch['iSearchRank'] < $this->iMaxRank) {
1186                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
1187                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1188                     }
1189                 }
1190                 ksort($aGroupedSearches);
1191             }
1192
1193             if (CONST_Debug) var_Dump($aGroupedSearches);
1194             if (CONST_Search_TryDroppedAddressTerms && sizeof($this->aStructuredQuery) > 0) {
1195                 $aCopyGroupedSearches = $aGroupedSearches;
1196                 foreach ($aCopyGroupedSearches as $iGroup => $aSearches) {
1197                     foreach ($aSearches as $iSearch => $aSearch) {
1198                         $aReductionsList = array($aSearch['aAddress']);
1199                         $iSearchRank = $aSearch['iSearchRank'];
1200                         while (sizeof($aReductionsList) > 0) {
1201                             $iSearchRank += 5;
1202                             if ($iSearchRank > iMaxRank) break 3;
1203                             $aNewReductionsList = array();
1204                             foreach ($aReductionsList as $aReductionsWordList) {
1205                                 for ($iReductionWord = 0; $iReductionWord < sizeof($aReductionsWordList); $iReductionWord++) {
1206                                     $aReductionsWordListResult = array_merge(array_slice($aReductionsWordList, 0, $iReductionWord), array_slice($aReductionsWordList, $iReductionWord+1));
1207                                     $aReverseSearch = $aSearch;
1208                                     $aSearch['aAddress'] = $aReductionsWordListResult;
1209                                     $aSearch['iSearchRank'] = $iSearchRank;
1210                                     $aGroupedSearches[$iSearchRank][] = $aReverseSearch;
1211                                     if (sizeof($aReductionsWordListResult) > 0) {
1212                                         $aNewReductionsList[] = $aReductionsWordListResult;
1213                                     }
1214                                 }
1215                             }
1216                             $aReductionsList = $aNewReductionsList;
1217                         }
1218                     }
1219                 }
1220                 ksort($aGroupedSearches);
1221             }
1222
1223             // Filter out duplicate searches
1224             $aSearchHash = array();
1225             foreach ($aGroupedSearches as $iGroup => $aSearches) {
1226                 foreach ($aSearches as $iSearch => $aSearch) {
1227                     $sHash = serialize($aSearch);
1228                     if (isset($aSearchHash[$sHash])) {
1229                         unset($aGroupedSearches[$iGroup][$iSearch]);
1230                         if (sizeof($aGroupedSearches[$iGroup]) == 0) unset($aGroupedSearches[$iGroup]);
1231                     } else {
1232                         $aSearchHash[$sHash] = 1;
1233                     }
1234                 }
1235             }
1236
1237             if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
1238
1239             $iGroupLoop = 0;
1240             $iQueryLoop = 0;
1241             foreach ($aGroupedSearches as $iGroupedRank => $aSearches) {
1242                 $iGroupLoop++;
1243                 foreach ($aSearches as $aSearch) {
1244                     $iQueryLoop++;
1245                     $searchedHousenumber = -1;
1246
1247                     if (CONST_Debug) echo "<hr><b>Search Loop, group $iGroupLoop, loop $iQueryLoop</b>";
1248                     if (CONST_Debug) _debugDumpGroupedSearches(array($iGroupedRank => array($aSearch)), $aValidTokens);
1249
1250                     // No location term?
1251                     if (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['oNear']) {
1252                         if ($aSearch['sCountryCode'] && !$aSearch['sClass'] && !$aSearch['sHouseNumber']) {
1253                             // Just looking for a country by code - look it up
1254                             if (4 >= $this->iMinAddressRank && 4 <= $this->iMaxAddressRank) {
1255                                 $sSQL = "SELECT place_id FROM placex WHERE country_code='".$aSearch['sCountryCode']."' AND rank_search = 4";
1256                                 if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1257                                 if ($bBoundingBoxSearch)
1258                                     $sSQL .= " AND _st_intersects($this->sViewboxSmallSQL, geometry)";
1259                                 $sSQL .= " ORDER BY st_area(geometry) DESC LIMIT 1";
1260                                 if (CONST_Debug) var_dump($sSQL);
1261                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1262                             } else {
1263                                 $aPlaceIDs = array();
1264                             }
1265                         } else {
1266                             if (!$bBoundingBoxSearch && !$aSearch['oNear']) continue;
1267                             if (!$aSearch['sClass']) continue;
1268
1269                             $sSQL = "SELECT COUNT(*) FROM pg_tables WHERE tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1270                             if (chksql($this->oDB->getOne($sSQL))) {
1271                                 $sSQL = "SELECT place_id FROM place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1272                                 if ($sCountryCodesSQL) $sSQL .= " JOIN placex USING (place_id)";
1273                                 $sSQL .= " WHERE st_contains($this->sViewboxSmallSQL, ct.centroid)";
1274                                 if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1275                                 if (sizeof($this->aExcludePlaceIDs)) {
1276                                     $sSQL .= " AND place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1277                                 }
1278                                 if ($this->sViewboxCentreSQL) $sSQL .= " ORDER BY ST_Distance($this->sViewboxCentreSQL, ct.centroid) ASC";
1279                                 $sSQL .= " limit $this->iLimit";
1280                                 if (CONST_Debug) var_dump($sSQL);
1281                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1282
1283                                 // If excluded place IDs are given, it is fair to assume that
1284                                 // there have been results in the small box, so no further
1285                                 // expansion in that case.
1286                                 // Also don't expand if bounded results were requested.
1287                                 if (!sizeof($aPlaceIDs) && !sizeof($this->aExcludePlaceIDs) && !$this->bBoundedSearch) {
1288                                     $sSQL = "SELECT place_id FROM place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1289                                     if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1290                                     $sSQL .= " WHERE ST_Contains($this->sViewboxLargeSQL, ct.centroid)";
1291                                     if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1292                                     if ($this->sViewboxCentreSQL) $sSQL .= " ORDER BY ST_Distance($this->sViewboxCentreSQL, ct.centroid) ASC";
1293                                     $sSQL .= " LIMIT $this->iLimit";
1294                                     if (CONST_Debug) var_dump($sSQL);
1295                                     $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1296                                 }
1297                             } else {
1298                                 $sSQL = "SELECT place_id ";
1299                                 $sSQL .= "FROM placex ";
1300                                 $sSQL .= "WHERE class='".$aSearch['sClass']."' ";
1301                                 $sSQL .= "  AND type='".$aSearch['sType']."'";
1302                                 $sSQL .= "  AND ST_Contains($this->sViewboxSmallSQL, geometry) ";
1303                                 $sSQL .= "  AND linked_place_id is null";
1304                                 if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1305                                 if ($this->sViewboxCentreSQL)   $sSQL .= " ORDER BY ST_Distance($this->sViewboxCentreSQL, centroid) ASC";
1306                                 $sSQL .= " LIMIT $this->iLimit";
1307                                 if (CONST_Debug) var_dump($sSQL);
1308                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1309                             }
1310                         }
1311                     } elseif ($aSearch['oNear'] && !sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['sClass']) {
1312                         // If a coordinate is given, the search must either
1313                         // be for a name or a special search. Ignore everythin else.
1314                         $aPlaceIDs = array();
1315                     } else {
1316                         $aPlaceIDs = array();
1317
1318                         // First we need a position, either aName or fLat or both
1319                         $aTerms = array();
1320                         $aOrder = array();
1321
1322                         if ($aSearch['sHouseNumber'] && sizeof($aSearch['aAddress'])) {
1323                             $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1324                             $aOrder[] = "";
1325                             $aOrder[0] = "  (";
1326                             $aOrder[0] .= "   EXISTS(";
1327                             $aOrder[0] .= "     SELECT place_id ";
1328                             $aOrder[0] .= "     FROM placex ";
1329                             $aOrder[0] .= "     WHERE parent_place_id = search_name.place_id";
1330                             $aOrder[0] .= "       AND transliteration(housenumber) ~* E'".$sHouseNumberRegex."' ";
1331                             $aOrder[0] .= "     LIMIT 1";
1332                             $aOrder[0] .= "   ) ";
1333                             // also housenumbers from interpolation lines table are needed
1334                             $aOrder[0] .= "   OR EXISTS(";
1335                             $aOrder[0] .= "     SELECT place_id ";
1336                             $aOrder[0] .= "     FROM location_property_osmline ";
1337                             $aOrder[0] .= "     WHERE parent_place_id = search_name.place_id";
1338                             $aOrder[0] .= "       AND startnumber is not NULL";
1339                             $aOrder[0] .= "       AND ".intval($aSearch['sHouseNumber']).">=startnumber ";
1340                             $aOrder[0] .= "       AND ".intval($aSearch['sHouseNumber'])."<=endnumber ";
1341                             $aOrder[0] .= "     LIMIT 1";
1342                             $aOrder[0] .= "   )";
1343                             $aOrder[0] .= " )";
1344                             $aOrder[0] .= " DESC";
1345                         }
1346
1347                         // TODO: filter out the pointless search terms (2 letter name tokens and less)
1348                         // they might be right - but they are just too darned expensive to run
1349                         if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'], ",")."]";
1350                         if (sizeof($aSearch['aNameNonSearch'])) $aTerms[] = "array_cat(name_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aNameNonSearch'], ",")."]";
1351                         if (sizeof($aSearch['aAddress']) && $aSearch['aName'] != $aSearch['aAddress']) {
1352                             // For infrequent name terms disable index usage for address
1353                             if (CONST_Search_NameOnlySearchFrequencyThreshold
1354                                 && sizeof($aSearch['aName']) == 1
1355                                 && $aWordFrequencyScores[$aSearch['aName'][reset($aSearch['aName'])]] < CONST_Search_NameOnlySearchFrequencyThreshold
1356                             ) {
1357                                 $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join(array_merge($aSearch['aAddress'], $aSearch['aAddressNonSearch']), ",")."]";
1358                             } else {
1359                                 $aTerms[] = "nameaddress_vector @> ARRAY[".join($aSearch['aAddress'], ",")."]";
1360                                 if (sizeof($aSearch['aAddressNonSearch'])) {
1361                                     $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddressNonSearch'], ",")."]";
1362                                 }
1363                             }
1364                         }
1365                         if ($aSearch['sCountryCode']) $aTerms[] = "country_code = '".pg_escape_string($aSearch['sCountryCode'])."'";
1366                         if ($aSearch['sHouseNumber']) {
1367                             $aTerms[] = "address_rank between 16 and 27";
1368                         } else {
1369                             if ($this->iMinAddressRank > 0) {
1370                                 $aTerms[] = "address_rank >= ".$this->iMinAddressRank;
1371                             }
1372                             if ($this->iMaxAddressRank < 30) {
1373                                 $aTerms[] = "address_rank <= ".$this->iMaxAddressRank;
1374                             }
1375                         }
1376                         if ($aSearch['oNear']) {
1377                             $aTerms[] = $aSearch['oNear']->withinSQL('centroid');
1378
1379                             $aOrder[] = $aSearch['oNear']->distanceSQL('centroid');
1380                         }
1381                         if (sizeof($this->aExcludePlaceIDs)) {
1382                             $aTerms[] = "place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1383                         }
1384                         if ($sCountryCodesSQL) {
1385                             $aTerms[] = "country_code in ($sCountryCodesSQL)";
1386                         }
1387
1388                         if ($bBoundingBoxSearch) $aTerms[] = "centroid && $this->sViewboxSmallSQL";
1389                         if ($oNearPoint) {
1390                             $aOrder[] = $oNearPoint->distanceSQL('centroid');
1391                         }
1392
1393                         if ($aSearch['sHouseNumber']) {
1394                             $sImportanceSQL = '- abs(26 - address_rank) + 3';
1395                         } else {
1396                             $sImportanceSQL = '(CASE WHEN importance = 0 OR importance IS NULL THEN 0.75-(search_rank::float/40) ELSE importance END)';
1397                         }
1398                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " * CASE WHEN ST_Contains($this->sViewboxSmallSQL, centroid) THEN 1 ELSE 0.5 END";
1399                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " * CASE WHEN ST_Contains($this->sViewboxLargeSQL, centroid) THEN 1 ELSE 0.5 END";
1400
1401                         $aOrder[] = "$sImportanceSQL DESC";
1402                         if (sizeof($aSearch['aFullNameAddress'])) {
1403                             $sExactMatchSQL = ' ( ';
1404                             $sExactMatchSQL .= '   SELECT count(*) FROM ( ';
1405                             $sExactMatchSQL .= '      SELECT unnest(ARRAY['.join($aSearch['aFullNameAddress'], ",").']) ';
1406                             $sExactMatchSQL .= '      INTERSECT ';
1407                             $sExactMatchSQL .= '      SELECT unnest(nameaddress_vector)';
1408                             $sExactMatchSQL .= '   ) s';
1409                             $sExactMatchSQL .= ') as exactmatch';
1410                             $aOrder[] = 'exactmatch DESC';
1411                         } else {
1412                             $sExactMatchSQL = '0::int as exactmatch';
1413                         }
1414
1415                         if (sizeof($aTerms)) {
1416                             $sSQL = "SELECT place_id, ";
1417                             $sSQL .= $sExactMatchSQL;
1418                             $sSQL .= " FROM search_name";
1419                             $sSQL .= " WHERE ".join(' and ', $aTerms);
1420                             $sSQL .= " ORDER BY ".join(', ', $aOrder);
1421                             if ($aSearch['sHouseNumber'] || $aSearch['sClass']) {
1422                                 $sSQL .= " LIMIT 20";
1423                             } elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass']) {
1424                                 $sSQL .= " LIMIT 1";
1425                             } else {
1426                                 $sSQL .= " LIMIT ".$this->iLimit;
1427                             }
1428
1429                             if (CONST_Debug) var_dump($sSQL);
1430                             $aViewBoxPlaceIDs = chksql(
1431                                 $this->oDB->getAll($sSQL),
1432                                 "Could not get places for search terms."
1433                             );
1434                             //var_dump($aViewBoxPlaceIDs);
1435                             // Did we have an viewbox matches?
1436                             $aPlaceIDs = array();
1437                             $bViewBoxMatch = false;
1438                             foreach ($aViewBoxPlaceIDs as $aViewBoxRow) {
1439                                 //if ($bViewBoxMatch == 1 && $aViewBoxRow['in_small'] == 'f') break;
1440                                 //if ($bViewBoxMatch == 2 && $aViewBoxRow['in_large'] == 'f') break;
1441                                 //if ($aViewBoxRow['in_small'] == 't') $bViewBoxMatch = 1;
1442                                 //else if ($aViewBoxRow['in_large'] == 't') $bViewBoxMatch = 2;
1443                                 $aPlaceIDs[] = $aViewBoxRow['place_id'];
1444                                 $this->exactMatchCache[$aViewBoxRow['place_id']] = $aViewBoxRow['exactmatch'];
1445                             }
1446                         }
1447                         //var_Dump($aPlaceIDs);
1448                         //exit;
1449
1450                         //now search for housenumber, if housenumber provided
1451                         if ($aSearch['sHouseNumber'] && sizeof($aPlaceIDs)) {
1452                             $searchedHousenumber = intval($aSearch['sHouseNumber']);
1453                             $aRoadPlaceIDs = $aPlaceIDs;
1454                             $sPlaceIDs = join(',', $aPlaceIDs);
1455
1456                             // Now they are indexed, look for a house attached to a street we found
1457                             $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1458                             $sSQL = "SELECT place_id FROM placex ";
1459                             $sSQL .= "WHERE parent_place_id in (".$sPlaceIDs.") and transliteration(housenumber) ~* E'".$sHouseNumberRegex."'";
1460                             if (sizeof($this->aExcludePlaceIDs)) {
1461                                 $sSQL .= " AND place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1462                             }
1463                             $sSQL .= " LIMIT $this->iLimit";
1464                             if (CONST_Debug) var_dump($sSQL);
1465                             $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1466
1467                             // if nothing found, search in the interpolation line table
1468                             if (!sizeof($aPlaceIDs)) {
1469                                 // do we need to use transliteration and the regex for housenumbers???
1470                                 //new query for lines, not housenumbers anymore
1471                                 $sSQL = "SELECT distinct place_id FROM location_property_osmline";
1472                                 $sSQL .= " WHERE startnumber is not NULL and parent_place_id in (".$sPlaceIDs.") and (";
1473                                 if ($searchedHousenumber%2 == 0) {
1474                                     //if housenumber is even, look for housenumber in streets with interpolationtype even or all
1475                                     $sSQL .= "interpolationtype='even'";
1476                                 } else {
1477                                     //look for housenumber in streets with interpolationtype odd or all
1478                                     $sSQL .= "interpolationtype='odd'";
1479                                 }
1480                                 $sSQL .= " or interpolationtype='all') and ";
1481                                 $sSQL .= $searchedHousenumber.">=startnumber and ";
1482                                 $sSQL .= $searchedHousenumber."<=endnumber";
1483
1484                                 if (sizeof($this->aExcludePlaceIDs)) {
1485                                     $sSQL .= " AND place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1486                                 }
1487                                 //$sSQL .= " limit $this->iLimit";
1488                                 if (CONST_Debug) var_dump($sSQL);
1489                                 //get place IDs
1490                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL, 0));
1491                             }
1492
1493                             // If nothing found try the aux fallback table
1494                             if (CONST_Use_Aux_Location_data && !sizeof($aPlaceIDs)) {
1495                                 $sSQL = "SELECT place_id FROM location_property_aux ";
1496                                 $sSQL .= " WHERE parent_place_id in (".$sPlaceIDs.") ";
1497                                 $sSQL .= " AND housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1498                                 if (sizeof($this->aExcludePlaceIDs)) {
1499                                     $sSQL .= " AND parent_place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1500                                 }
1501                                 //$sSQL .= " limit $this->iLimit";
1502                                 if (CONST_Debug) var_dump($sSQL);
1503                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1504                             }
1505
1506                             //if nothing was found in placex or location_property_aux, then search in Tiger data for this housenumber(location_property_tiger)
1507                             if (CONST_Use_US_Tiger_Data && !sizeof($aPlaceIDs)) {
1508                                 $sSQL = "SELECT distinct place_id FROM location_property_tiger";
1509                                 $sSQL .= " WHERE parent_place_id in (".$sPlaceIDs.") and (";
1510                                 if ($searchedHousenumber%2 == 0) {
1511                                     $sSQL .= "interpolationtype='even'";
1512                                 } else {
1513                                     $sSQL .= "interpolationtype='odd'";
1514                                 }
1515                                 $sSQL .= " or interpolationtype='all') and ";
1516                                 $sSQL .= $searchedHousenumber.">=startnumber and ";
1517                                 $sSQL .= $searchedHousenumber."<=endnumber";
1518
1519                                 if (sizeof($this->aExcludePlaceIDs)) {
1520                                     $sSQL .= " AND place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1521                                 }
1522                                 //$sSQL .= " limit $this->iLimit";
1523                                 if (CONST_Debug) var_dump($sSQL);
1524                                 //get place IDs
1525                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL, 0));
1526                             }
1527
1528                             // Fallback to the road (if no housenumber was found)
1529                             if (!sizeof($aPlaceIDs) && preg_match('/[0-9]+/', $aSearch['sHouseNumber'])) {
1530                                 $aPlaceIDs = $aRoadPlaceIDs;
1531                                 //set to -1, if no housenumbers were found
1532                                 $searchedHousenumber = -1;
1533                             }
1534                             //else: housenumber was found, remains saved in searchedHousenumber
1535                         }
1536
1537
1538                         if ($aSearch['sClass'] && sizeof($aPlaceIDs)) {
1539                             $sPlaceIDs = join(',', $aPlaceIDs);
1540                             $aClassPlaceIDs = array();
1541
1542                             if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'name') {
1543                                 // If they were searching for a named class (i.e. 'Kings Head pub') then we might have an extra match
1544                                 $sSQL = "SELECT place_id ";
1545                                 $sSQL .= " FROM placex ";
1546                                 $sSQL .= " WHERE place_id in ($sPlaceIDs) ";
1547                                 $sSQL .= "   AND class='".$aSearch['sClass']."' ";
1548                                 $sSQL .= "   AND type='".$aSearch['sType']."'";
1549                                 $sSQL .= "   AND linked_place_id is null";
1550                                 if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1551                                 $sSQL .= " ORDER BY rank_search ASC ";
1552                                 $sSQL .= " LIMIT $this->iLimit";
1553                                 if (CONST_Debug) var_dump($sSQL);
1554                                 $aClassPlaceIDs = chksql($this->oDB->getCol($sSQL));
1555                             }
1556
1557                             if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') { // & in
1558                                 $sClassTable = 'place_classtype_'.$aSearch['sClass'].'_'.$aSearch['sType'];
1559                                 $sSQL = "SELECT count(*) FROM pg_tables ";
1560                                 $sSQL .= "WHERE tablename = '$sClassTable'";
1561                                 $bCacheTable = chksql($this->oDB->getOne($sSQL));
1562
1563                                 $sSQL = "SELECT min(rank_search) FROM placex WHERE place_id in ($sPlaceIDs)";
1564
1565                                 if (CONST_Debug) var_dump($sSQL);
1566                                 $this->iMaxRank = ((int)chksql($this->oDB->getOne($sSQL)));
1567
1568                                 // For state / country level searches the normal radius search doesn't work very well
1569                                 $sPlaceGeom = false;
1570                                 if ($this->iMaxRank < 9 && $bCacheTable) {
1571                                     // Try and get a polygon to search in instead
1572                                     $sSQL = "SELECT geometry ";
1573                                     $sSQL .= " FROM placex";
1574                                     $sSQL .= " WHERE place_id in ($sPlaceIDs)";
1575                                     $sSQL .= "   AND rank_search < $this->iMaxRank + 5";
1576                                     $sSQL .= "   AND ST_Geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon')";
1577                                     $sSQL .= " ORDER BY rank_search ASC ";
1578                                     $sSQL .= " LIMIT 1";
1579                                     if (CONST_Debug) var_dump($sSQL);
1580                                     $sPlaceGeom = chksql($this->oDB->getOne($sSQL));
1581                                 }
1582
1583                                 if ($sPlaceGeom) {
1584                                     $sPlaceIDs = false;
1585                                 } else {
1586                                     $this->iMaxRank += 5;
1587                                     $sSQL = "SELECT place_id FROM placex WHERE place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank";
1588                                     if (CONST_Debug) var_dump($sSQL);
1589                                     $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1590                                     $sPlaceIDs = join(',', $aPlaceIDs);
1591                                 }
1592
1593                                 if ($sPlaceIDs || $sPlaceGeom) {
1594                                     $fRange = 0.01;
1595                                     if ($bCacheTable) {
1596                                         // More efficient - can make the range bigger
1597                                         $fRange = 0.05;
1598
1599                                         $sOrderBySQL = '';
1600                                         if ($oNearPoint) {
1601                                             $sOrderBySQL = $oNearPoint->distanceSQL('l.centroid');
1602                                         } elseif ($sPlaceIDs) {
1603                                             $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
1604                                         } elseif ($sPlaceGeom) {
1605                                             $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
1606                                         }
1607
1608                                         $sSQL = "select distinct i.place_id".($sOrderBySQL?', i.order_term':'')." from (";
1609                                         $sSQL .= "select l.place_id".($sOrderBySQL?','.$sOrderBySQL.' as order_term':'')." from ".$sClassTable." as l";
1610                                         if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
1611                                         if ($sPlaceIDs) {
1612                                             $sSQL .= ",placex as f where ";
1613                                             $sSQL .= "f.place_id in ($sPlaceIDs) and ST_DWithin(l.centroid, f.centroid, $fRange) ";
1614                                         }
1615                                         if ($sPlaceGeom) {
1616                                             $sSQL .= " where ";
1617                                             $sSQL .= "ST_Contains('".$sPlaceGeom."', l.centroid) ";
1618                                         }
1619                                         if (sizeof($this->aExcludePlaceIDs)) {
1620                                             $sSQL .= " and l.place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1621                                         }
1622                                         if ($sCountryCodesSQL) $sSQL .= " and lp.country_code in ($sCountryCodesSQL)";
1623                                         $sSQL .= 'limit 300) i ';
1624                                         if ($sOrderBySQL) $sSQL .= "order by order_term asc";
1625                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1626                                         $sSQL .= " limit $this->iLimit";
1627                                         if (CONST_Debug) var_dump($sSQL);
1628                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($this->oDB->getCol($sSQL)));
1629                                     } else {
1630                                         if ($aSearch['oNear']) {
1631                                             $fRange = $aSearch['oNear']->radius();
1632                                         }
1633
1634                                         $sOrderBySQL = '';
1635                                         if ($oNearPoint) {
1636                                             $sOrderBySQL = $oNearPoint->distanceSQL('l.geometry');
1637                                         } else {
1638                                             $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
1639                                         }
1640
1641                                         $sSQL = "SELECT distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'');
1642                                         $sSQL .= " FROM placex as l, placex as f ";
1643                                         $sSQL .= " WHERE f.place_id in ($sPlaceIDs) ";
1644                                         $sSQL .= "  AND ST_DWithin(l.geometry, f.centroid, $fRange) ";
1645                                         $sSQL .= "  AND l.class='".$aSearch['sClass']."' ";
1646                                         $sSQL .= "  AND l.type='".$aSearch['sType']."' ";
1647                                         if (sizeof($this->aExcludePlaceIDs)) {
1648                                             $sSQL .= " AND l.place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1649                                         }
1650                                         if ($sCountryCodesSQL) $sSQL .= " AND l.country_code in ($sCountryCodesSQL)";
1651                                         if ($sOrderBy) $sSQL .= "ORDER BY ".$OrderBysSQL." ASC";
1652                                         if ($this->iOffset) $sSQL .= " OFFSET $this->iOffset";
1653                                         $sSQL .= " limit $this->iLimit";
1654                                         if (CONST_Debug) var_dump($sSQL);
1655                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($this->oDB->getCol($sSQL)));
1656                                     }
1657                                 }
1658                             }
1659                             $aPlaceIDs = $aClassPlaceIDs;
1660                         }
1661                     }
1662
1663                     if (CONST_Debug) {
1664                         echo "<br><b>Place IDs:</b> ";
1665                         var_Dump($aPlaceIDs);
1666                     }
1667
1668                     foreach ($aPlaceIDs as $iPlaceID) {
1669                         // array for placeID => -1 | Tiger housenumber
1670                         $aResultPlaceIDs[$iPlaceID] = $searchedHousenumber;
1671                     }
1672                     if ($iQueryLoop > 20) break;
1673                 }
1674
1675                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs) && ($this->iMinAddressRank != 0 || $this->iMaxAddressRank != 30)) {
1676                     // Need to verify passes rank limits before dropping out of the loop (yuk!)
1677                     // reduces the number of place ids, like a filter
1678                     // rank_address is 30 for interpolated housenumbers
1679                     $sSQL = "SELECT place_id ";
1680                     $sSQL .= "FROM placex ";
1681                     $sSQL .= "WHERE place_id in (".join(',', array_keys($aResultPlaceIDs)).") ";
1682                     $sSQL .= "  AND (";
1683                     $sSQL .= "         placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
1684                     if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) {
1685                         $sSQL .= "     OR (extratags->'place') = 'city'";
1686                     }
1687                     if ($this->aAddressRankList) {
1688                         $sSQL .= "     OR placex.rank_address in (".join(',', $this->aAddressRankList).")";
1689                     }
1690                     if (CONST_Use_US_Tiger_Data) {
1691                         $sSQL .= "  ) ";
1692                         $sSQL .= "UNION ";
1693                         $sSQL .= "  SELECT place_id ";
1694                         $sSQL .= "  FROM location_property_tiger ";
1695                         $sSQL .= "  WHERE place_id in (".join(',', array_keys($aResultPlaceIDs)).") ";
1696                         $sSQL .= "    AND (30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
1697                         if ($this->aAddressRankList) $sSQL .= " OR 30 in (".join(',', $this->aAddressRankList).")";
1698                     }
1699                     $sSQL .= ") UNION ";
1700                     $sSQL .= "  SELECT place_id ";
1701                     $sSQL .= "  FROM location_property_osmline ";
1702                     $sSQL .= "  WHERE place_id in (".join(',', array_keys($aResultPlaceIDs)).")";
1703                     $sSQL .= "    AND startnumber is not NULL AND (30 between $this->iMinAddressRank and $this->iMaxAddressRank)";
1704                     if (CONST_Debug) var_dump($sSQL);
1705                     $aFilteredPlaceIDs = chksql($this->oDB->getCol($sSQL));
1706                     $tempIDs = array();
1707                     foreach ($aFilteredPlaceIDs as $placeID) {
1708                         $tempIDs[$placeID] = $aResultPlaceIDs[$placeID];  //assign housenumber to placeID
1709                     }
1710                     $aResultPlaceIDs = $tempIDs;
1711                 }
1712
1713                 //exit;
1714                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) break;
1715                 if ($iGroupLoop > 4) break;
1716                 if ($iQueryLoop > 30) break;
1717             }
1718
1719             // Did we find anything?
1720             if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) {
1721                 $aSearchResults = $this->getDetails($aResultPlaceIDs);
1722             }
1723         } else {
1724             // Just interpret as a reverse geocode
1725             $oReverse = new ReverseGeocode($this->oDB);
1726             $oReverse->setZoom(18);
1727
1728             $aLookup = $oReverse->lookup(
1729                 $oNearPoint->lat(),
1730                 $oNearPoint->lon(),
1731                 false
1732             );
1733
1734             if (CONST_Debug) var_dump("Reverse search", $aLookup);
1735
1736             if ($aLookup['place_id']) {
1737                 $aSearchResults = $this->getDetails(array($aLookup['place_id'] => -1));
1738                 $aResultPlaceIDs[$aLookup['place_id']] = -1;
1739             } else {
1740                 $aSearchResults = array();
1741             }
1742         }
1743
1744         // No results? Done
1745         if (!sizeof($aSearchResults)) {
1746             if ($this->bFallback) {
1747                 if ($this->fallbackStructuredQuery()) {
1748                     return $this->lookup();
1749                 }
1750             }
1751
1752             return array();
1753         }
1754
1755         $aClassType = getClassTypesWithImportance();
1756         $aRecheckWords = preg_split('/\b[\s,\\-]*/u', $sQuery);
1757         foreach ($aRecheckWords as $i => $sWord) {
1758             if (!preg_match('/[\pL\pN]/', $sWord)) unset($aRecheckWords[$i]);
1759         }
1760
1761         if (CONST_Debug) {
1762             echo '<i>Recheck words:<\i>';
1763             var_dump($aRecheckWords);
1764         }
1765
1766         $oPlaceLookup = new PlaceLookup($this->oDB);
1767         $oPlaceLookup->setIncludePolygonAsPoints($this->bIncludePolygonAsPoints);
1768         $oPlaceLookup->setIncludePolygonAsText($this->bIncludePolygonAsText);
1769         $oPlaceLookup->setIncludePolygonAsGeoJSON($this->bIncludePolygonAsGeoJSON);
1770         $oPlaceLookup->setIncludePolygonAsKML($this->bIncludePolygonAsKML);
1771         $oPlaceLookup->setIncludePolygonAsSVG($this->bIncludePolygonAsSVG);
1772         $oPlaceLookup->setPolygonSimplificationThreshold($this->fPolygonSimplificationThreshold);
1773
1774         foreach ($aSearchResults as $iResNum => $aResult) {
1775             // Default
1776             $fDiameter = getResultDiameter($aResult);
1777
1778             $aOutlineResult = $oPlaceLookup->getOutlines($aResult['place_id'], $aResult['lon'], $aResult['lat'], $fDiameter/2);
1779             if ($aOutlineResult) {
1780                 $aResult = array_merge($aResult, $aOutlineResult);
1781             }
1782
1783             if ($aResult['extra_place'] == 'city') {
1784                 $aResult['class'] = 'place';
1785                 $aResult['type'] = 'city';
1786                 $aResult['rank_search'] = 16;
1787             }
1788
1789             // Is there an icon set for this type of result?
1790             if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1791                 && $aClassType[$aResult['class'].':'.$aResult['type']]['icon']
1792             ) {
1793                 $aResult['icon'] = CONST_Website_BaseURL.'images/mapicons/'.$aClassType[$aResult['class'].':'.$aResult['type']]['icon'].'.p.20.png';
1794             }
1795
1796             if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1797                 && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label']
1798             ) {
1799                 $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'];
1800             } elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1801                 && $aClassType[$aResult['class'].':'.$aResult['type']]['label']
1802             ) {
1803                 $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type']]['label'];
1804             }
1805             // if tag '&addressdetails=1' is set in query
1806             if ($this->bIncludeAddressDetails) {
1807                 // getAddressDetails() is defined in lib.php and uses the SQL function get_addressdata in functions.sql
1808                 $aResult['address'] = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code'], $aResultPlaceIDs[$aResult['place_id']]);
1809                 if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city'])) {
1810                     $aResult['address'] = array_merge(array('city' => array_values($aResult['address'])[0]), $aResult['address']);
1811                 }
1812             }
1813
1814             if ($this->bIncludeExtraTags) {
1815                 if ($aResult['extra']) {
1816                     $aResult['sExtraTags'] = json_decode($aResult['extra']);
1817                 } else {
1818                     $aResult['sExtraTags'] = (object) array();
1819                 }
1820             }
1821
1822             if ($this->bIncludeNameDetails) {
1823                 if ($aResult['names']) {
1824                     $aResult['sNameDetails'] = json_decode($aResult['names']);
1825                 } else {
1826                     $aResult['sNameDetails'] = (object) array();
1827                 }
1828             }
1829
1830             // Adjust importance for the number of exact string matches in the result
1831             $aResult['importance'] = max(0.001, $aResult['importance']);
1832             $iCountWords = 0;
1833             $sAddress = $aResult['langaddress'];
1834             foreach ($aRecheckWords as $i => $sWord) {
1835                 if (stripos($sAddress, $sWord)!==false) {
1836                     $iCountWords++;
1837                     if (preg_match("/(^|,)\s*".preg_quote($sWord, '/')."\s*(,|$)/", $sAddress)) $iCountWords += 0.1;
1838                 }
1839             }
1840
1841             $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
1842
1843             $aResult['name'] = $aResult['langaddress'];
1844             // secondary ordering (for results with same importance (the smaller the better):
1845             // - approximate importance of address parts
1846             $aResult['foundorder'] = -$aResult['addressimportance']/10;
1847             // - number of exact matches from the query
1848             if (isset($this->exactMatchCache[$aResult['place_id']])) {
1849                 $aResult['foundorder'] -= $this->exactMatchCache[$aResult['place_id']];
1850             } elseif (isset($this->exactMatchCache[$aResult['parent_place_id']])) {
1851                 $aResult['foundorder'] -= $this->exactMatchCache[$aResult['parent_place_id']];
1852             }
1853             // - importance of the class/type
1854             if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1855                 && $aClassType[$aResult['class'].':'.$aResult['type']]['importance']
1856             ) {
1857                 $aResult['foundorder'] += 0.0001 * $aClassType[$aResult['class'].':'.$aResult['type']]['importance'];
1858             } else {
1859                 $aResult['foundorder'] += 0.01;
1860             }
1861             if (CONST_Debug) var_dump($aResult);
1862             $aSearchResults[$iResNum] = $aResult;
1863         }
1864         uasort($aSearchResults, 'byImportance');
1865
1866         $aOSMIDDone = array();
1867         $aClassTypeNameDone = array();
1868         $aToFilter = $aSearchResults;
1869         $aSearchResults = array();
1870
1871         $bFirst = true;
1872         foreach ($aToFilter as $iResNum => $aResult) {
1873             $this->aExcludePlaceIDs[$aResult['place_id']] = $aResult['place_id'];
1874             if ($bFirst) {
1875                 $fLat = $aResult['lat'];
1876                 $fLon = $aResult['lon'];
1877                 if (isset($aResult['zoom'])) $iZoom = $aResult['zoom'];
1878                 $bFirst = false;
1879             }
1880             if (!$this->bDeDupe || (!isset($aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']])
1881                 && !isset($aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']]))
1882             ) {
1883                 $aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']] = true;
1884                 $aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']] = true;
1885                 $aSearchResults[] = $aResult;
1886             }
1887
1888             // Absolute limit on number of results
1889             if (sizeof($aSearchResults) >= $this->iFinalLimit) break;
1890         }
1891
1892         return $aSearchResults;
1893     } // end lookup()
1894 } // end class