lib/Geocode.php

   1 <?php
   2         class Geocode
   3         {
   4                 protected $oDB;
   5
   6                 protected $aLangPrefOrder = array();
   7
   8                 protected $bIncludeAddressDetails = false;
   9
  10                 protected $bIncludePolygonAsPoints = false;
  11                 protected $bIncludePolygonAsText = false;
  12                 protected $bIncludePolygonAsGeoJSON = false;
  13                 protected $bIncludePolygonAsKML = false;
  14                 protected $bIncludePolygonAsSVG = false;
  15
  16                 protected $aExcludePlaceIDs = array();
  17                 protected $bDeDupe = true;
  18                 protected $bReverseInPlan = false;
  19
  20                 protected $iLimit = 20;
  21                 protected $iFinalLimit = 10;
  22                 protected $iOffset = 0;
  23
  24                 protected $aCountryCodes = false;
  25                 protected $aNearPoint = false;
  26
  27                 protected $bBoundedSearch = false;
  28                 protected $aViewBox = false;
  29                 protected $aRoutePoints = false;
  30
  31                 protected $iMaxRank = 20;
  32                 protected $iMinAddressRank = 0;
  33                 protected $iMaxAddressRank = 30;
  34                 protected $aAddressRankList = array();
  35
  36                 protected $sAllowedTypesSQLList = false;
  37
  38                 protected $sQuery = false;
  39                 protected $aStructuredQuery = false;
  40
  41                 function Geocode(&$oDB)
  42                 {
  43                         $this->oDB =& $oDB;
  44                 }
  45
  46                 function setReverseInPlan($bReverse)
  47                 {
  48                         $this->bReverseInPlan = $bReverse;
  49                 }
  50
  51                 function setLanguagePreference($aLangPref)
  52                 {
  53                         $this->aLangPrefOrder = $aLangPref;
  54                 }
  55
  56                 function setIncludeAddressDetails($bAddressDetails = true)
  57                 {
  58                         $this->bIncludeAddressDetails = (bool)$bAddressDetails;
  59                 }
  60
  61                 function getIncludeAddressDetails()
  62                 {
  63                         return $this->bIncludeAddressDetails;
  64                 }
  65
  66                 function setIncludePolygonAsPoints($b = true)
  67                 {
  68                         $this->bIncludePolygonAsPoints = $b;
  69                 }
  70
  71                 function getIncludePolygonAsPoints()
  72                 {
  73                         return $this->bIncludePolygonAsPoints;
  74                 }
  75
  76                 function setIncludePolygonAsText($b = true)
  77                 {
  78                         $this->bIncludePolygonAsText = $b;
  79                 }
  80
  81                 function getIncludePolygonAsText()
  82                 {
  83                         return $this->bIncludePolygonAsText;
  84                 }
  85
  86                 function setIncludePolygonAsGeoJSON($b = true)
  87                 {
  88                         $this->bIncludePolygonAsGeoJSON = $b;
  89                 }
  90
  91                 function setIncludePolygonAsKML($b = true)
  92                 {
  93                         $this->bIncludePolygonAsKML = $b;
  94                 }
  95
  96                 function setIncludePolygonAsSVG($b = true)
  97                 {
  98                         $this->bIncludePolygonAsSVG = $b;
  99                 }
 100
 101                 function setDeDupe($bDeDupe = true)
 102                 {
 103                         $this->bDeDupe = (bool)$bDeDupe;
 104                 }
 105
 106                 function setLimit($iLimit = 10)
 107                 {
 108                         if ($iLimit > 50) $iLimit = 50;
 109                         if ($iLimit < 1) $iLimit = 1;
 110
 111                         $this->iFinalLimit = $iLimit;
 112                         $this->iLimit = $this->iFinalLimit + min($this->iFinalLimit, 10);
 113                 }
 114
 115                 function setOffset($iOffset = 0)
 116                 {
 117                         $this->iOffset = $iOffset;
 118                 }
 119
 120                 function setExcludedPlaceIDs($a)
 121                 {
 122                         // TODO: force to int
 123                         $this->aExcludePlaceIDs = $a;
 124                 }
 125
 126                 function getExcludedPlaceIDs()
 127                 {
 128                         return $this->aExcludePlaceIDs;
 129                 }
 130
 131                 function setBounded($bBoundedSearch = true)
 132                 {
 133                         $this->bBoundedSearch = (bool)$bBoundedSearch;
 134                 }
 135
 136                 function setViewBox($fLeft, $fBottom, $fRight, $fTop)
 137                 {
 138                         $this->aViewBox = array($fLeft, $fBottom, $fRight, $fTop);
 139                 }
 140
 141                 function getViewBoxString()
 142                 {
 143                         if (!$this->aViewBox) return null;
 144                         return $this->aViewBox[0].','.$this->aViewBox[3].','.$this->aViewBox[2].','.$this->aViewBox[1];
 145                 }
 146
 147                 function setRoute($aRoutePoints)
 148                 {
 149                         $this->aRoutePoints = $aRoutePoints;
 150                 }
 151
 152                 function setFeatureType($sFeatureType)
 153                 {
 154                         switch($sFeatureType)
 155                         {
 156                         case 'country':
 157                                 $this->setRankRange(4, 4);
 158                                 break;
 159                         case 'state':
 160                                 $this->setRankRange(8, 8);
 161                                 break;
 162                         case 'city':
 163                                 $this->setRankRange(14, 16);
 164                                 break;
 165                         case 'settlement':
 166                                 $this->setRankRange(8, 20);
 167                                 break;
 168                         }
 169                 }
 170
 171                 function setRankRange($iMin, $iMax)
 172                 {
 173                         $this->iMinAddressRank = (int)$iMin;
 174                         $this->iMaxAddressRank = (int)$iMax;
 175                 }
 176
 177                 function setNearPoint($aNearPoint, $fRadiusDeg = 0.1)
 178                 {
 179                         $this->aNearPoint = array((float)$aNearPoint[0], (float)$aNearPoint[1], (float)$fRadiusDeg);
 180                 }
 181
 182                 function setCountryCodesList($aCountryCodes)
 183                 {
 184                         $this->aCountryCodes = $aCountryCodes;
 185                 }
 186
 187                 function setQuery($sQueryString)
 188                 {
 189                         $this->sQuery = $sQueryString;
 190                         $this->aStructuredQuery = false;
 191                 }
 192
 193                 function getQueryString()
 194                 {
 195                         return $this->sQuery;
 196                 }
 197
 198                 function loadStructuredAddressElement(&$aStructuredQuery, &$iMinAddressRank, &$iMaxAddressRank, &$aAddressRankList, $sValue, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank, $aItemListValues)
 199                 {
 200                         $sValue = trim($sValue);
 201                         if (!$sValue) return false;
 202                         $aStructuredQuery[$sKey] = $sValue;
 203                         if ($iMinAddressRank == 0 && $iMaxAddressRank == 30)
 204                         {
 205                                 $iMinAddressRank = $iNewMinAddressRank;
 206                                 $iMaxAddressRank = $iNewMaxAddressRank;
 207                         }
 208                         if ($aItemListValues) $aAddressRankList = array_merge($aAddressRankList, $aItemListValues);
 209                         return true;
 210                 }
 211
 212                 function setStructuredQuery($sAmentiy = false, $sStreet = false, $sCity = false, $sCounty = false, $sState = false, $sCountry = false, $sPostalCode = false)
 213                 {
 214                         $this->sQuery = false;
 215
 216                         $this->aStructuredQuery = array();
 217                         $this->sAllowedTypesSQLList = '';
 218
 219                         $this->loadStructuredAddressElement($this->aStructuredQuery, $this->iMinAddressRank, $this->iMaxAddressRank, $this->aAddressRankList, $sAmentiy, 'amenity', 26, 30, false);
 220                         $this->loadStructuredAddressElement($this->aStructuredQuery, $this->iMinAddressRank, $this->iMaxAddressRank, $this->aAddressRankList, $sStreet, 'street', 26, 30, false);
 221                         $this->loadStructuredAddressElement($this->aStructuredQuery, $this->iMinAddressRank, $this->iMaxAddressRank, $this->aAddressRankList, $sCity, 'city', 14, 24, false);
 222                         $this->loadStructuredAddressElement($this->aStructuredQuery, $this->iMinAddressRank, $this->iMaxAddressRank, $this->aAddressRankList, $sCounty, 'county', 9, 13, false);
 223                         $this->loadStructuredAddressElement($this->aStructuredQuery, $this->iMinAddressRank, $this->iMaxAddressRank, $this->aAddressRankList, $sState, 'state', 8, 8, false);
 224                         $this->loadStructuredAddressElement($this->aStructuredQuery, $this->iMinAddressRank, $this->iMaxAddressRank, $this->aAddressRankList, $sCountry, 'country', 4, 4, false);
 225                         $this->loadStructuredAddressElement($this->aStructuredQuery, $this->iMinAddressRank, $this->iMaxAddressRank, $this->aAddressRankList, $sPostalCode, 'postalcode' , 5, 11, array(5, 11));
 226
 227                         if (sizeof($this->aStructuredQuery) > 0)
 228                         {
 229                                 $this->sQuery = join(', ', $this->aStructuredQuery);
 230                                 if ($this->iMaxAddressRank < 30)
 231                                 {
 232                                         $sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 233                                 }
 234                         }
 235
 236                 }
 237
 238                 function getDetails($aPlaceIDs)
 239                 {
 240                         if (sizeof($aPlaceIDs) == 0)  return array();
 241
 242                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 243
 244                         // Get the details for display (is this a redundant extra step?)
 245                         $sPlaceIDs = join(',',$aPlaceIDs);
 246
 247                         $sSQL = "select osm_type,osm_id,class,type,admin_level,rank_search,rank_address,min(place_id) as place_id,calculated_country_code as country_code,";
 248                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 249                         $sSQL .= "get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
 250                         $sSQL .= "get_name_by_language(name, ARRAY['ref']) as ref,";
 251                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 252                         $sSQL .= "coalesce(importance,0.75-(rank_search::float/40)) as importance, ";
 253                         $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(placex.place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 254                         $sSQL .= "(extratags->'place') as extra_place ";
 255                         $sSQL .= "from placex where place_id in ($sPlaceIDs) ";
 256                         $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
 257                         if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
 258                         if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
 259                         $sSQL .= ") ";
 260                         if ($this->sAllowedTypesSQLList) $sSQL .= "and placex.class in $this->sAllowedTypesSQLList ";
 261                         $sSQL .= "and linked_place_id is null ";
 262                         $sSQL .= "group by osm_type,osm_id,class,type,admin_level,rank_search,rank_address,calculated_country_code,importance";
 263                         if (!$this->bDeDupe) $sSQL .= ",place_id";
 264                         $sSQL .= ",langaddress ";
 265                         $sSQL .= ",placename ";
 266                         $sSQL .= ",ref ";
 267                         $sSQL .= ",extratags->'place' ";
 268
 269                         if (30 >= $this->iMinAddressRank && 30 <= $this->iMaxAddressRank)
 270                         {
 271                                 $sSQL .= " union ";
 272                                 $sSQL .= "select 'T' as osm_type,place_id as osm_id,'place' as class,'house' as type,null as admin_level,30 as rank_search,30 as rank_address,min(place_id) as place_id,'us' as country_code,";
 273                                 $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 274                                 $sSQL .= "null as placename,";
 275                                 $sSQL .= "null as ref,";
 276                                 $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 277                                 $sSQL .= "-0.15 as importance, ";
 278                                 $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(location_property_tiger.place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 279                                 $sSQL .= "null as extra_place ";
 280                                 $sSQL .= "from location_property_tiger where place_id in ($sPlaceIDs) ";
 281                                 $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 282                                 $sSQL .= "group by place_id";
 283                                 if (!$this->bDeDupe) $sSQL .= ",place_id";
 284                                 $sSQL .= " union ";
 285                                 $sSQL .= "select 'L' as osm_type,place_id as osm_id,'place' as class,'house' as type,null as admin_level,30 as rank_search,30 as rank_address,min(place_id) as place_id,'us' as country_code,";
 286                                 $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 287                                 $sSQL .= "null as placename,";
 288                                 $sSQL .= "null as ref,";
 289                                 $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 290                                 $sSQL .= "-0.10 as importance, ";
 291                                 $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(location_property_aux.place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 292                                 $sSQL .= "null as extra_place ";
 293                                 $sSQL .= "from location_property_aux where place_id in ($sPlaceIDs) ";
 294                                 $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 295                                 $sSQL .= "group by place_id";
 296                                 if (!$this->bDeDupe) $sSQL .= ",place_id";
 297                                 $sSQL .= ",get_address_by_language(place_id, $sLanguagePrefArraySQL) ";
 298                         }
 299
 300                         $sSQL .= "order by importance desc";
 301                         if (CONST_Debug) { echo "<hr>"; var_dump($sSQL); }
 302                         $aSearchResults = $this->oDB->getAll($sSQL);
 303
 304                         if (PEAR::IsError($aSearchResults))
 305                         {
 306                                 failInternalError("Could not get details for place.", $sSQL, $aSearchResults);
 307                         }
 308
 309                         return $aSearchResults;
 310                 }
 311
 312                 function lookup()
 313                 {
 314                         if (!$this->sQuery && !$this->aStructuredQuery) return false;
 315
 316                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 317
 318                         $sCountryCodesSQL = false;
 319                         if ($this->aCountryCodes && sizeof($this->aCountryCodes))
 320                         {
 321                                 $sCountryCodesSQL = join(',', array_map('addQuotes', $this->aCountryCodes));
 322                         }
 323
 324                         // Hack to make it handle "new york, ny" (and variants) correctly
 325                         $sQuery = str_ireplace(array('New York, ny','new york, new york', 'New York ny','new york new york'), 'new york city, ny', $this->sQuery);
 326
 327                         // Conflicts between US state abreviations and various words for 'the' in different languages
 328                         if (isset($this->aLangPrefOrder['name:en']))
 329                         {
 330                                 $sQuery = preg_replace('/,\s*il\s*(,|$)/',', illinois\1', $sQuery);
 331                                 $sQuery = preg_replace('/,\s*al\s*(,|$)/',', alabama\1', $sQuery);
 332                                 $sQuery = preg_replace('/,\s*la\s*(,|$)/',', louisiana\1', $sQuery);
 333                         }
 334
 335                         // View Box SQL
 336                         $sViewboxCentreSQL = $sViewboxSmallSQL = $sViewboxLargeSQL = false;
 337                         $bBoundingBoxSearch = false;
 338                         if ($this->aViewBox)
 339                         {
 340                                 $fHeight = $this->aViewBox[0]-$this->aViewBox[2];
 341                                 $fWidth = $this->aViewBox[1]-$this->aViewBox[3];
 342                                 $aBigViewBox[0] = $this->aViewBox[0] + $fHeight;
 343                                 $aBigViewBox[2] = $this->aViewBox[2] - $fHeight;
 344                                 $aBigViewBox[1] = $this->aViewBox[1] + $fWidth;
 345                                 $aBigViewBox[3] = $this->aViewBox[3] - $fWidth;
 346
 347                                 $sViewboxSmallSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$this->aViewBox[0].",".(float)$this->aViewBox[1]."),ST_Point(".(float)$this->aViewBox[2].",".(float)$this->aViewBox[3].")),4326)";
 348                                 $sViewboxLargeSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$aBigViewBox[0].",".(float)$aBigViewBox[1]."),ST_Point(".(float)$aBigViewBox[2].",".(float)$aBigViewBox[3].")),4326)";
 349                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 350                         }
 351
 352                         // Route SQL
 353                         if ($this->aRoutePoints)
 354                         {
 355                                 $sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
 356                                 $bFirst = false;
 357                                 foreach($this->aRouteaPoints as $aPoint)
 358                                 {
 359                                         if (!$bFirst) $sViewboxCentreSQL .= ",";
 360                                         $sViewboxCentreSQL .= $aPoint[1].' '.$aPoint[0];
 361                                 }
 362                                 $sViewboxCentreSQL .= ")'::geometry,4326)";
 363
 364                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/69).")";
 365                                 $sViewboxSmallSQL = $this->oDB->getOne($sSQL);
 366                                 if (PEAR::isError($sViewboxSmallSQL))
 367                                 {
 368                                         failInternalError("Could not get small viewbox.", $sSQL, $sViewboxSmallSQL);
 369                                 }
 370                                 $sViewboxSmallSQL = "'".$sViewboxSmallSQL."'::geometry";
 371
 372                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/30).")";
 373                                 $sViewboxLargeSQL = $this->oDB->getOne($sSQL);
 374                                 if (PEAR::isError($sViewboxLargeSQL))
 375                                 {
 376                                         failInternalError("Could not get large viewbox.", $sSQL, $sViewboxLargeSQL);
 377                                 }
 378                                 $sViewboxLargeSQL = "'".$sViewboxLargeSQL."'::geometry";
 379                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 380                         }
 381
 382                         // Do we have anything that looks like a lat/lon pair?
 383                         if (preg_match('/\\b([NS])[ ]+([0-9]+[0-9.]*)[ ]+([0-9.]+)?[, ]+([EW])[ ]+([0-9]+)[ ]+([0-9]+[0-9.]*)?\\b/', $sQuery, $aData))
 384                         {
 385                                 $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60);
 386                                 $fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[5] + $aData[6]/60);
 387                                 if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 388                                 {
 389                                         $this->setNearPoint(array($fQueryLat, $fQueryLon));
 390                                         $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 391                                 }
 392                         }
 393                         elseif (preg_match('/\\b([0-9]+)[ ]+([0-9]+[0-9.]*)?[ ]+([NS])[, ]+([0-9]+)[ ]+([0-9]+[0-9.]*)?[ ]+([EW])\\b/', $sQuery, $aData))
 394                         {
 395                                 $fQueryLat = ($aData[3]=='N'?1:-1) * ($aData[1] + $aData[2]/60);
 396                                 $fQueryLon = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
 397                                 if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 398                                 {
 399                                         $this->setNearPoint(array($fQueryLat, $fQueryLon));
 400                                         $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 401                                 }
 402                         }
 403                         elseif (preg_match('/(\\[|^|\\b)(-?[0-9]+[0-9]*\\.[0-9]+)[, ]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]|$|\\b)/', $sQuery, $aData))
 404                         {
 405                                 $fQueryLat = $aData[2];
 406                                 $fQueryLon = $aData[3];
 407                                 if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 408                                 {
 409                                         $this->setNearPoint(array($fQueryLat, $fQueryLon));
 410                                         $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 411                                 }
 412                         }
 413
 414                         $aSearchResults = array();
 415                         if ($sQuery || $this->aStructuredQuery)
 416                         {
 417                                 // Start with a blank search
 418                                 $aSearches = array(
 419                                         array('iSearchRank' => 0, 'iNamePhrase' => -1, 'sCountryCode' => false, 'aName'=>array(), 'aAddress'=>array(), 'aFullNameAddress'=>array(),
 420                                               'aNameNonSearch'=>array(), 'aAddressNonSearch'=>array(),
 421                                               'sOperator'=>'', 'aFeatureName' => array(), 'sClass'=>'', 'sType'=>'', 'sHouseNumber'=>'', 'fLat'=>'', 'fLon'=>'', 'fRadius'=>'')
 422                                 );
 423
 424                                 // Do we have a radius search?
 425                                 $sNearPointSQL = false;
 426                                 if ($this->aNearPoint)
 427                                 {
 428                                         $sNearPointSQL = "ST_SetSRID(ST_Point(".(float)$this->aNearPoint[1].",".(float)$this->aNearPoint[0]."),4326)";
 429                                         $aSearches[0]['fLat'] = (float)$this->aNearPoint[0];
 430                                         $aSearches[0]['fLon'] = (float)$this->aNearPoint[1];
 431                                         $aSearches[0]['fRadius'] = (float)$this->aNearPoint[2];
 432                                 }
 433
 434                                 // Any 'special' terms in the search?
 435                                 $bSpecialTerms = false;
 436                                 preg_match_all('/\\[(.*)=(.*)\\]/', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 437                                 $aSpecialTerms = array();
 438                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 439                                 {
 440                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 441                                         $aSpecialTerms[strtolower($aSpecialTerm[1])] = $aSpecialTerm[2];
 442                                 }
 443
 444                                 preg_match_all('/\\[([\\w ]*)\\]/u', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 445                                 $aSpecialTerms = array();
 446                                 if (isset($aStructuredQuery['amenity']) && $aStructuredQuery['amenity'])
 447                                 {
 448                                         $aSpecialTermsRaw[] = array('['.$aStructuredQuery['amenity'].']', $aStructuredQuery['amenity']);
 449                                         unset($aStructuredQuery['amenity']);
 450                                 }
 451                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 452                                 {
 453                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 454                                         $sToken = $this->oDB->getOne("select make_standard_name('".$aSpecialTerm[1]."') as string");
 455                                         $sSQL = 'select * from (select word_id,word_token, word, class, type, country_code, operator';
 456                                         $sSQL .= ' from word where word_token in (\' '.$sToken.'\')) as x where (class is not null and class not in (\'place\')) or country_code is not null';
 457                                         if (CONST_Debug) var_Dump($sSQL);
 458                                         $aSearchWords = $this->oDB->getAll($sSQL);
 459                                         $aNewSearches = array();
 460                                         foreach($aSearches as $aSearch)
 461                                         {
 462                                                 foreach($aSearchWords as $aSearchTerm)
 463                                                 {
 464                                                         $aNewSearch = $aSearch;
 465                                                         if ($aSearchTerm['country_code'])
 466                                                         {
 467                                                                 $aNewSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 468                                                                 $aNewSearches[] = $aNewSearch;
 469                                                                 $bSpecialTerms = true;
 470                                                         }
 471                                                         if ($aSearchTerm['class'])
 472                                                         {
 473                                                                 $aNewSearch['sClass'] = $aSearchTerm['class'];
 474                                                                 $aNewSearch['sType'] = $aSearchTerm['type'];
 475                                                                 $aNewSearches[] = $aNewSearch;
 476                                                                 $bSpecialTerms = true;
 477                                                         }
 478                                                 }
 479                                         }
 480                                         $aSearches = $aNewSearches;
 481                                 }
 482
 483                                 // Split query into phrases
 484                                 // Commas are used to reduce the search space by indicating where phrases split
 485                                 if ($this->aStructuredQuery)
 486                                 {
 487                                         $aPhrases = $this->aStructuredQuery;
 488                                         $bStructuredPhrases = true;
 489                                 }
 490                                 else
 491                                 {
 492                                         $aPhrases = explode(',',$sQuery);
 493                                         $bStructuredPhrases = false;
 494                                 }
 495
 496                                 // Convert each phrase to standard form
 497                                 // Create a list of standard words
 498                                 // Get all 'sets' of words
 499                                 // Generate a complete list of all
 500                                 $aTokens = array();
 501                                 foreach($aPhrases as $iPhrase => $sPhrase)
 502                                 {
 503                                         $aPhrase = $this->oDB->getRow("select make_standard_name('".pg_escape_string($sPhrase)."') as string");
 504                                         if (PEAR::isError($aPhrase))
 505                                         {
 506                                                 userError("Illegal query string (not an UTF-8 string): ".$sPhrase);
 507                                                 if (CONST_Debug) var_dump($aPhrase);
 508                                                 exit;
 509                                         }
 510                                         if (trim($aPhrase['string']))
 511                                         {
 512                                                 $aPhrases[$iPhrase] = $aPhrase;
 513                                                 $aPhrases[$iPhrase]['words'] = explode(' ',$aPhrases[$iPhrase]['string']);
 514                                                 $aPhrases[$iPhrase]['wordsets'] = getWordSets($aPhrases[$iPhrase]['words'], 0);
 515                                                 $aTokens = array_merge($aTokens, getTokensFromSets($aPhrases[$iPhrase]['wordsets']));
 516                                         }
 517                                         else
 518                                         {
 519                                                 unset($aPhrases[$iPhrase]);
 520                                         }
 521                                 }
 522
 523                                 // Reindex phrases - we make assumptions later on that they are numerically keyed in order
 524                                 $aPhraseTypes = array_keys($aPhrases);
 525                                 $aPhrases = array_values($aPhrases);
 526
 527                                 if (sizeof($aTokens))
 528                                 {
 529                                         // Check which tokens we have, get the ID numbers
 530                                         $sSQL = 'select word_id,word_token, word, class, type, country_code, operator, search_name_count';
 531                                         $sSQL .= ' from word where word_token in ('.join(',',array_map("getDBQuoted",$aTokens)).')';
 532
 533                                         if (CONST_Debug) var_Dump($sSQL);
 534
 535                                         $aValidTokens = array();
 536                                         if (sizeof($aTokens)) $aDatabaseWords = $this->oDB->getAll($sSQL);
 537                                         else $aDatabaseWords = array();
 538                                         if (PEAR::IsError($aDatabaseWords))
 539                                         {
 540                                                 failInternalError("Could not get word tokens.", $sSQL, $aDatabaseWords);
 541                                         }
 542                                         $aPossibleMainWordIDs = array();
 543                                         $aWordFrequencyScores = array();
 544                                         foreach($aDatabaseWords as $aToken)
 545                                         {
 546                                                 // Very special case - require 2 letter country param to match the country code found
 547                                                 if ($bStructuredPhrases && $aToken['country_code'] && !empty($aStructuredQuery['country'])
 548                                                                 && strlen($aStructuredQuery['country']) == 2 && strtolower($aStructuredQuery['country']) != $aToken['country_code'])
 549                                                 {
 550                                                         continue;
 551                                                 }
 552
 553                                                 if (isset($aValidTokens[$aToken['word_token']]))
 554                                                 {
 555                                                         $aValidTokens[$aToken['word_token']][] = $aToken;
 556                                                 }
 557                                                 else
 558                                                 {
 559                                                         $aValidTokens[$aToken['word_token']] = array($aToken);
 560                                                 }
 561                                                 if (!$aToken['class'] && !$aToken['country_code']) $aPossibleMainWordIDs[$aToken['word_id']] = 1;
 562                                                 $aWordFrequencyScores[$aToken['word_id']] = $aToken['search_name_count'] + 1;
 563                                         }
 564                                         if (CONST_Debug) var_Dump($aPhrases, $aValidTokens);
 565
 566                                         // Try and calculate GB postcodes we might be missing
 567                                         foreach($aTokens as $sToken)
 568                                         {
 569                                                 // Source of gb postcodes is now definitive - always use
 570                                                 if (preg_match('/^([A-Z][A-Z]?[0-9][0-9A-Z]? ?[0-9])([A-Z][A-Z])$/', strtoupper(trim($sToken)), $aData))
 571                                                 {
 572                                                         if (substr($aData[1],-2,1) != ' ')
 573                                                         {
 574                                                                 $aData[0] = substr($aData[0],0,strlen($aData[1]-1)).' '.substr($aData[0],strlen($aData[1]-1));
 575                                                                 $aData[1] = substr($aData[1],0,-1).' '.substr($aData[1],-1,1);
 576                                                         }
 577                                                         $aGBPostcodeLocation = gbPostcodeCalculate($aData[0], $aData[1], $aData[2], $this->oDB);
 578                                                         if ($aGBPostcodeLocation)
 579                                                         {
 580                                                                 $aValidTokens[$sToken] = $aGBPostcodeLocation;
 581                                                         }
 582                                                 }
 583                                                 // US ZIP+4 codes - if there is no token,
 584                                                 //      merge in the 5-digit ZIP code
 585                                                 else if (!isset($aValidTokens[$sToken]) && preg_match('/^([0-9]{5}) [0-9]{4}$/', $sToken, $aData))
 586                                                 {
 587                                                         if (isset($aValidTokens[$aData[1]]))
 588                                                         {
 589                                                                 foreach($aValidTokens[$aData[1]] as $aToken)
 590                                                                 {
 591                                                                         if (!$aToken['class'])
 592                                                                         {
 593                                                                                 if (isset($aValidTokens[$sToken]))
 594                                                                                 {
 595                                                                                         $aValidTokens[$sToken][] = $aToken;
 596                                                                                 }
 597                                                                                 else
 598                                                                                 {
 599                                                                                         $aValidTokens[$sToken] = array($aToken);
 600                                                                                 }
 601                                                                         }
 602                                                                 }
 603                                                         }
 604                                                 }
 605                                         }
 606
 607                                         foreach($aTokens as $sToken)
 608                                         {
 609                                                 // Unknown single word token with a number - assume it is a house number
 610                                                 if (!isset($aValidTokens[' '.$sToken]) && strpos($sToken,' ') === false && preg_match('/[0-9]/', $sToken))
 611                                                 {
 612                                                         $aValidTokens[' '.$sToken] = array(array('class'=>'place','type'=>'house'));
 613                                                 }
 614                                         }
 615
 616                                         // Any words that have failed completely?
 617                                         // TODO: suggestions
 618
 619                                         // Start the search process
 620                                         $aResultPlaceIDs = array();
 621
 622                                         /*
 623                                            Calculate all searches using aValidTokens i.e.
 624                                            'Wodsworth Road, Sheffield' =>
 625
 626                                            Phrase Wordset
 627                                            0      0       (wodsworth road)
 628                                            0      1       (wodsworth)(road)
 629                                            1      0       (sheffield)
 630
 631                                            Score how good the search is so they can be ordered
 632                                          */
 633                                         foreach($aPhrases as $iPhrase => $sPhrase)
 634                                         {
 635                                                 $aNewPhraseSearches = array();
 636                                                 if ($bStructuredPhrases) $sPhraseType = $aPhraseTypes[$iPhrase];
 637                                                 else $sPhraseType = '';
 638
 639                                                 foreach($aPhrases[$iPhrase]['wordsets'] as $iWordSet => $aWordset)
 640                                                 {
 641                                                         // Too many permutations - too expensive
 642                                                         if ($iWordSet > 120) break;
 643
 644                                                         $aWordsetSearches = $aSearches;
 645
 646                                                         // Add all words from this wordset
 647                                                         foreach($aWordset as $iToken => $sToken)
 648                                                         {
 649                                                                 //echo "<br><b>$sToken</b>";
 650                                                                 $aNewWordsetSearches = array();
 651
 652                                                                 foreach($aWordsetSearches as $aCurrentSearch)
 653                                                                 {
 654                                                                         //echo "<i>";
 655                                                                         //var_dump($aCurrentSearch);
 656                                                                         //echo "</i>";
 657
 658                                                                         // If the token is valid
 659                                                                         if (isset($aValidTokens[' '.$sToken]))
 660                                                                         {
 661                                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTerm)
 662                                                                                 {
 663                                                                                         $aSearch = $aCurrentSearch;
 664                                                                                         $aSearch['iSearchRank']++;
 665                                                                                         if (($sPhraseType == '' || $sPhraseType == 'country') && !empty($aSearchTerm['country_code']) && $aSearchTerm['country_code'] != '0')
 666                                                                                         {
 667                                                                                                 if ($aSearch['sCountryCode'] === false)
 668                                                                                                 {
 669                                                                                                         $aSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 670                                                                                                         // Country is almost always at the end of the string - increase score for finding it anywhere else (optimisation)
 671                                                                                                         // If reverse order is enabled, it may appear at the beginning as well.
 672                                                                                                         if (($iToken+1 != sizeof($aWordset) || $iPhrase+1 != sizeof($aPhrases)) &&
 673                                                                                                                         (!$this->bReverseInPlan || $iToken > 0 || $iPhrase > 0))
 674                                                                                                         {
 675                                                                                                                 $aSearch['iSearchRank'] += 5;
 676                                                                                                         }
 677                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 678                                                                                                 }
 679                                                                                         }
 680                                                                                         elseif (isset($aSearchTerm['lat']) && $aSearchTerm['lat'] !== '' && $aSearchTerm['lat'] !== null)
 681                                                                                         {
 682                                                                                                 if ($aSearch['fLat'] === '')
 683                                                                                                 {
 684                                                                                                         $aSearch['fLat'] = $aSearchTerm['lat'];
 685                                                                                                         $aSearch['fLon'] = $aSearchTerm['lon'];
 686                                                                                                         $aSearch['fRadius'] = $aSearchTerm['radius'];
 687                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 688                                                                                                 }
 689                                                                                         }
 690                                                                                         elseif ($sPhraseType == 'postalcode')
 691                                                                                         {
 692                                                                                                 // 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
 693                                                                                                 if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 694                                                                                                 {
 695                                                                                                         // If we already have a name try putting the postcode first
 696                                                                                                         if (sizeof($aSearch['aName']))
 697                                                                                                         {
 698                                                                                                                 $aNewSearch = $aSearch;
 699                                                                                                                 $aNewSearch['aAddress'] = array_merge($aNewSearch['aAddress'], $aNewSearch['aName']);
 700                                                                                                                 $aNewSearch['aName'] = array();
 701                                                                                                                 $aNewSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 702                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aNewSearch;
 703                                                                                                         }
 704
 705                                                                                                         if (sizeof($aSearch['aName']))
 706                                                                                                         {
 707                                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strlen($sToken) < 4 || strpos($sToken, ' ') !== false))
 708                                                                                                                 {
 709                                                                                                                         $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 710                                                                                                                 }
 711                                                                                                                 else
 712                                                                                                                 {
 713                                                                                                                         $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 714                                                                                                                         $aSearch['iSearchRank'] += 1000; // skip;
 715                                                                                                                 }
 716                                                                                                         }
 717                                                                                                         else
 718                                                                                                         {
 719                                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 720                                                                                                                 //$aSearch['iNamePhrase'] = $iPhrase;
 721                                                                                                         }
 722                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 723                                                                                                 }
 724
 725                                                                                         }
 726                                                                                         elseif (($sPhraseType == '' || $sPhraseType == 'street') && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house')
 727                                                                                         {
 728                                                                                                 if ($aSearch['sHouseNumber'] === '')
 729                                                                                                 {
 730                                                                                                         $aSearch['sHouseNumber'] = $sToken;
 731                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 732                                                                                                         /*
 733                                                                                                         // Fall back to not searching for this item (better than nothing)
 734                                                                                                         $aSearch = $aCurrentSearch;
 735                                                                                                         $aSearch['iSearchRank'] += 1;
 736                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 737                                                                                                          */
 738                                                                                                 }
 739                                                                                         }
 740                                                                                         elseif ($sPhraseType == '' && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null)
 741                                                                                         {
 742                                                                                                 if ($aSearch['sClass'] === '')
 743                                                                                                 {
 744                                                                                                         $aSearch['sOperator'] = $aSearchTerm['operator'];
 745                                                                                                         $aSearch['sClass'] = $aSearchTerm['class'];
 746                                                                                                         $aSearch['sType'] = $aSearchTerm['type'];
 747                                                                                                         if (sizeof($aSearch['aName'])) $aSearch['sOperator'] = 'name';
 748                                                                                                         else $aSearch['sOperator'] = 'near'; // near = in for the moment
 749
 750                                                                                                         // Do we have a shortcut id?
 751                                                                                                         if ($aSearch['sOperator'] == 'name')
 752                                                                                                         {
 753                                                                                                                 $sSQL = "select get_tagpair('".$aSearch['sClass']."', '".$aSearch['sType']."')";
 754                                                                                                                 if ($iAmenityID = $this->oDB->getOne($sSQL))
 755                                                                                                                 {
 756                                                                                                                         $aValidTokens[$aSearch['sClass'].':'.$aSearch['sType']] = array('word_id' => $iAmenityID);
 757                                                                                                                         $aSearch['aName'][$iAmenityID] = $iAmenityID;
 758                                                                                                                         $aSearch['sClass'] = '';
 759                                                                                                                         $aSearch['sType'] = '';
 760                                                                                                                 }
 761                                                                                                         }
 762                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 763                                                                                                 }
 764                                                                                         }
 765                                                                                         elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 766                                                                                         {
 767                                                                                                 if (sizeof($aSearch['aName']))
 768                                                                                                 {
 769                                                                                                         if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strlen($sToken) < 4 || strpos($sToken, ' ') !== false))
 770                                                                                                         {
 771                                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 772                                                                                                         }
 773                                                                                                         else
 774                                                                                                         {
 775                                                                                                                 $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 776                                                                                                                 $aSearch['iSearchRank'] += 1000; // skip;
 777                                                                                                         }
 778                                                                                                 }
 779                                                                                                 else
 780                                                                                                 {
 781                                                                                                         $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 782                                                                                                         //$aSearch['iNamePhrase'] = $iPhrase;
 783                                                                                                 }
 784                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 785                                                                                         }
 786                                                                                 }
 787                                                                         }
 788                                                                         if (isset($aValidTokens[$sToken]))
 789                                                                         {
 790                                                                                 // Allow searching for a word - but at extra cost
 791                                                                                 foreach($aValidTokens[$sToken] as $aSearchTerm)
 792                                                                                 {
 793                                                                                         if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 794                                                                                         {
 795                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && sizeof($aCurrentSearch['aName']) && strlen($sToken) >= 4)
 796                                                                                                 {
 797                                                                                                         $aSearch = $aCurrentSearch;
 798                                                                                                         $aSearch['iSearchRank'] += 1;
 799                                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 800                                                                                                         {
 801                                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 802                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 803                                                                                                         }
 804                                                                                                         elseif (isset($aValidTokens[' '.$sToken])) // revert to the token version?
 805                                                                                                         {
 806                                                                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTermToken)
 807                                                                                                                 {
 808                                                                                                                         if (empty($aSearchTermToken['country_code'])
 809                                                                                                                                         && empty($aSearchTermToken['lat'])
 810                                                                                                                                         && empty($aSearchTermToken['class']))
 811                                                                                                                         {
 812                                                                                                                                 $aSearch = $aCurrentSearch;
 813                                                                                                                                 $aSearch['iSearchRank'] += 1;
 814                                                                                                                                 $aSearch['aAddress'][$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
 815                                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 816                                                                                                                         }
 817                                                                                                                 }
 818                                                                                                         }
 819                                                                                                         else
 820                                                                                                         {
 821                                                                                                                 $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 822                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 823                                                                                                         }
 824                                                                                                 }
 825
 826                                                                                                 if (!sizeof($aCurrentSearch['aName']) || $aCurrentSearch['iNamePhrase'] == $iPhrase)
 827                                                                                                 {
 828                                                                                                         $aSearch = $aCurrentSearch;
 829                                                                                                         $aSearch['iSearchRank'] += 2;
 830                                                                                                         if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 831                                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 832                                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 833                                                                                                         else
 834                                                                                                                 $aSearch['aNameNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 835                                                                                                         $aSearch['iNamePhrase'] = $iPhrase;
 836                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 837                                                                                                 }
 838                                                                                         }
 839                                                                                 }
 840                                                                         }
 841                                                                         else
 842                                                                         {
 843                                                                                 // Allow skipping a word - but at EXTREAM cost
 844                                                                                 //$aSearch = $aCurrentSearch;
 845                                                                                 //$aSearch['iSearchRank']+=100;
 846                                                                                 //$aNewWordsetSearches[] = $aSearch;
 847                                                                         }
 848                                                                 }
 849                                                                 // Sort and cut
 850                                                                 usort($aNewWordsetSearches, 'bySearchRank');
 851                                                                 $aWordsetSearches = array_slice($aNewWordsetSearches, 0, 50);
 852                                                         }
 853                                                         //var_Dump('<hr>',sizeof($aWordsetSearches)); exit;
 854
 855                                                         $aNewPhraseSearches = array_merge($aNewPhraseSearches, $aNewWordsetSearches);
 856                                                         usort($aNewPhraseSearches, 'bySearchRank');
 857
 858                                                         $aSearchHash = array();
 859                                                         foreach($aNewPhraseSearches as $iSearch => $aSearch)
 860                                                         {
 861                                                                 $sHash = serialize($aSearch);
 862                                                                 if (isset($aSearchHash[$sHash])) unset($aNewPhraseSearches[$iSearch]);
 863                                                                 else $aSearchHash[$sHash] = 1;
 864                                                         }
 865
 866                                                         $aNewPhraseSearches = array_slice($aNewPhraseSearches, 0, 50);
 867                                                 }
 868
 869                                                 // Re-group the searches by their score, junk anything over 20 as just not worth trying
 870                                                 $aGroupedSearches = array();
 871                                                 foreach($aNewPhraseSearches as $aSearch)
 872                                                 {
 873                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank)
 874                                                         {
 875                                                                 if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
 876                                                                 $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
 877                                                         }
 878                                                 }
 879                                                 ksort($aGroupedSearches);
 880
 881                                                 $iSearchCount = 0;
 882                                                 $aSearches = array();
 883                                                 foreach($aGroupedSearches as $iScore => $aNewSearches)
 884                                                 {
 885                                                         $iSearchCount += sizeof($aNewSearches);
 886                                                         $aSearches = array_merge($aSearches, $aNewSearches);
 887                                                         if ($iSearchCount > 50) break;
 888                                                 }
 889
 890                                                 //if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
 891
 892                                         }
 893
 894                                 }
 895                                 else
 896                                 {
 897                                         // Re-group the searches by their score, junk anything over 20 as just not worth trying
 898                                         $aGroupedSearches = array();
 899                                         foreach($aSearches as $aSearch)
 900                                         {
 901                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank)
 902                                                 {
 903                                                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
 904                                                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
 905                                                 }
 906                                         }
 907                                         ksort($aGroupedSearches);
 908                                 }
 909
 910                                 if (CONST_Debug) var_Dump($aGroupedSearches);
 911
 912                                 if ($this->bReverseInPlan)
 913                                 {
 914                                         $aCopyGroupedSearches = $aGroupedSearches;
 915                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
 916                                         {
 917                                                 foreach($aSearches as $iSearch => $aSearch)
 918                                                 {
 919                                                         if (sizeof($aSearch['aAddress']))
 920                                                         {
 921                                                                 $iReverseItem = array_pop($aSearch['aAddress']);
 922                                                                 if (isset($aPossibleMainWordIDs[$iReverseItem]))
 923                                                                 {
 924                                                                         $aSearch['aAddress'] = array_merge($aSearch['aAddress'], $aSearch['aName']);
 925                                                                         $aSearch['aName'] = array($iReverseItem);
 926                                                                         $aGroupedSearches[$iGroup][] = $aSearch;
 927                                                                 }
 928                                                                 //$aReverseSearch['aName'][$iReverseItem] = $iReverseItem;
 929                                                                 //$aGroupedSearches[$iGroup][] = $aReverseSearch;
 930                                                         }
 931                                                 }
 932                                         }
 933                                 }
 934
 935                                 if (CONST_Search_TryDroppedAddressTerms && sizeof($aStructuredQuery) > 0)
 936                                 {
 937                                         $aCopyGroupedSearches = $aGroupedSearches;
 938                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
 939                                         {
 940                                                 foreach($aSearches as $iSearch => $aSearch)
 941                                                 {
 942                                                         $aReductionsList = array($aSearch['aAddress']);
 943                                                         $iSearchRank = $aSearch['iSearchRank'];
 944                                                         while(sizeof($aReductionsList) > 0)
 945                                                         {
 946                                                                 $iSearchRank += 5;
 947                                                                 if ($iSearchRank > iMaxRank) break 3;
 948                                                                 $aNewReductionsList = array();
 949                                                                 foreach($aReductionsList as $aReductionsWordList)
 950                                                                 {
 951                                                                         for ($iReductionWord = 0; $iReductionWord < sizeof($aReductionsWordList); $iReductionWord++)
 952                                                                         {
 953                                                                                 $aReductionsWordListResult = array_merge(array_slice($aReductionsWordList, 0, $iReductionWord), array_slice($aReductionsWordList, $iReductionWord+1));
 954                                                                                 $aReverseSearch = $aSearch;
 955                                                                                 $aSearch['aAddress'] = $aReductionsWordListResult;
 956                                                                                 $aSearch['iSearchRank'] = $iSearchRank;
 957                                                                                 $aGroupedSearches[$iSearchRank][] = $aReverseSearch;
 958                                                                                 if (sizeof($aReductionsWordListResult) > 0)
 959                                                                                 {
 960                                                                                         $aNewReductionsList[] = $aReductionsWordListResult;
 961                                                                                 }
 962                                                                         }
 963                                                                 }
 964                                                                 $aReductionsList = $aNewReductionsList;
 965                                                         }
 966                                                 }
 967                                         }
 968                                         ksort($aGroupedSearches);
 969                                 }
 970
 971                                 // Filter out duplicate searches
 972                                 $aSearchHash = array();
 973                                 foreach($aGroupedSearches as $iGroup => $aSearches)
 974                                 {
 975                                         foreach($aSearches as $iSearch => $aSearch)
 976                                         {
 977                                                 $sHash = serialize($aSearch);
 978                                                 if (isset($aSearchHash[$sHash]))
 979                                                 {
 980                                                         unset($aGroupedSearches[$iGroup][$iSearch]);
 981                                                         if (sizeof($aGroupedSearches[$iGroup]) == 0) unset($aGroupedSearches[$iGroup]);
 982                                                 }
 983                                                 else
 984                                                 {
 985                                                         $aSearchHash[$sHash] = 1;
 986                                                 }
 987                                         }
 988                                 }
 989
 990                                 if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
 991
 992                                 $iGroupLoop = 0;
 993                                 $iQueryLoop = 0;
 994                                 foreach($aGroupedSearches as $iGroupedRank => $aSearches)
 995                                 {
 996                                         $iGroupLoop++;
 997                                         foreach($aSearches as $aSearch)
 998                                         {
 999                                                 $iQueryLoop++;
1000
1001                                                 if (CONST_Debug) { echo "<hr><b>Search Loop, group $iGroupLoop, loop $iQueryLoop</b>"; }
1002                                                 if (CONST_Debug) _debugDumpGroupedSearches(array($iGroupedRank => array($aSearch)), $aValidTokens);
1003
1004                                                 // No location term?
1005                                                 if (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['fLon'])
1006                                                 {
1007                                                         if ($aSearch['sCountryCode'] && !$aSearch['sClass'] && !$aSearch['sHouseNumber'])
1008                                                         {
1009                                                                 // Just looking for a country by code - look it up
1010                                                                 if (4 >= $this->iMinAddressRank && 4 <= $this->iMaxAddressRank)
1011                                                                 {
1012                                                                         $sSQL = "select place_id from placex where calculated_country_code='".$aSearch['sCountryCode']."' and rank_search = 4";
1013                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1014                                                                         $sSQL .= " order by st_area(geometry) desc limit 1";
1015                                                                         if (CONST_Debug) var_dump($sSQL);
1016                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1017                                                                 }
1018                                                         }
1019                                                         else
1020                                                         {
1021                                                                 if (!$bBoundingBoxSearch && !$aSearch['fLon']) continue;
1022                                                                 if (!$aSearch['sClass']) continue;
1023                                                                 $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1024                                                                 if ($this->oDB->getOne($sSQL))
1025                                                                 {
1026                                                                         $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1027                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1028                                                                         $sSQL .= " where st_contains($sViewboxSmallSQL, ct.centroid)";
1029                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1030                                                                         if (sizeof($this->aExcludePlaceIDs))
1031                                                                         {
1032                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1033                                                                         }
1034                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1035                                                                         $sSQL .= " limit $this->iLimit";
1036                                                                         if (CONST_Debug) var_dump($sSQL);
1037                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1038
1039                                                                         // If excluded place IDs are given, it is fair to assume that
1040                                                                         // there have been results in the small box, so no further
1041                                                                         // expansion in that case.
1042                                                                         if (!sizeof($aPlaceIDs) && !sizeof($this->aExcludePlaceIDs))
1043                                                                         {
1044                                                                                 $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1045                                                                                 if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1046                                                                                 $sSQL .= " where st_contains($sViewboxLargeSQL, ct.centroid)";
1047                                                                                 if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1048                                                                                 if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1049                                                                                 $sSQL .= " limit $this->iLimit";
1050                                                                                 if (CONST_Debug) var_dump($sSQL);
1051                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1052                                                                         }
1053                                                                 }
1054                                                                 else
1055                                                                 {
1056                                                                         $sSQL = "select place_id from placex where class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1057                                                                         $sSQL .= " and st_contains($sViewboxSmallSQL, geometry) and linked_place_id is null";
1058                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1059                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, centroid) asc";
1060                                                                         $sSQL .= " limit $this->iLimit";
1061                                                                         if (CONST_Debug) var_dump($sSQL);
1062                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1063                                                                 }
1064                                                         }
1065                                                 }
1066                                                 else
1067                                                 {
1068                                                         $aPlaceIDs = array();
1069
1070                                                         // First we need a position, either aName or fLat or both
1071                                                         $aTerms = array();
1072                                                         $aOrder = array();
1073
1074                                                         // TODO: filter out the pointless search terms (2 letter name tokens and less)
1075                                                         // they might be right - but they are just too darned expensive to run
1076                                                         if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'],",")."]";
1077                                                         if (sizeof($aSearch['aNameNonSearch'])) $aTerms[] = "array_cat(name_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aNameNonSearch'],",")."]";
1078                                                         if (sizeof($aSearch['aAddress']) && $aSearch['aName'] != $aSearch['aAddress'])
1079                                                         {
1080                                                                 // For infrequent name terms disable index usage for address
1081                                                                 if (CONST_Search_NameOnlySearchFrequencyThreshold &&
1082                                                                                 sizeof($aSearch['aName']) == 1 &&
1083                                                                                 $aWordFrequencyScores[$aSearch['aName'][reset($aSearch['aName'])]] < CONST_Search_NameOnlySearchFrequencyThreshold)
1084                                                                 {
1085                                                                         $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join(array_merge($aSearch['aAddress'],$aSearch['aAddressNonSearch']),",")."]";
1086                                                                 }
1087                                                                 else
1088                                                                 {
1089                                                                         $aTerms[] = "nameaddress_vector @> ARRAY[".join($aSearch['aAddress'],",")."]";
1090                                                                         if (sizeof($aSearch['aAddressNonSearch'])) $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddressNonSearch'],",")."]";
1091                                                                 }
1092                                                         }
1093                                                         if ($aSearch['sCountryCode']) $aTerms[] = "country_code = '".pg_escape_string($aSearch['sCountryCode'])."'";
1094                                                         if ($aSearch['sHouseNumber']) $aTerms[] = "address_rank between 16 and 27";
1095                                                         if ($aSearch['fLon'] && $aSearch['fLat'])
1096                                                         {
1097                                                                 $aTerms[] = "ST_DWithin(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326), ".$aSearch['fRadius'].")";
1098                                                                 $aOrder[] = "ST_Distance(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326)) ASC";
1099                                                         }
1100                                                         if (sizeof($this->aExcludePlaceIDs))
1101                                                         {
1102                                                                 $aTerms[] = "place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1103                                                         }
1104                                                         if ($sCountryCodesSQL)
1105                                                         {
1106                                                                 $aTerms[] = "country_code in ($sCountryCodesSQL)";
1107                                                         }
1108
1109                                                         if ($bBoundingBoxSearch) $aTerms[] = "centroid && $sViewboxSmallSQL";
1110                                                         if ($sNearPointSQL) $aOrder[] = "ST_Distance($sNearPointSQL, centroid) asc";
1111
1112                                                         $sImportanceSQL = '(case when importance = 0 OR importance IS NULL then 0.75-(search_rank::float/40) else importance end)';
1113                                                         if ($sViewboxSmallSQL) $sImportanceSQL .= " * case when ST_Contains($sViewboxSmallSQL, centroid) THEN 1 ELSE 0.5 END";
1114                                                         if ($sViewboxLargeSQL) $sImportanceSQL .= " * case when ST_Contains($sViewboxLargeSQL, centroid) THEN 1 ELSE 0.5 END";
1115                                                         $aOrder[] = "$sImportanceSQL DESC";
1116                                                         if (sizeof($aSearch['aFullNameAddress']))
1117                                                         {
1118                                                                 $aOrder[] = '(select count(*) from (select unnest(ARRAY['.join($aSearch['aFullNameAddress'],",").']) INTERSECT select unnest(nameaddress_vector))s) DESC';
1119                                                         }
1120
1121                                                         if (sizeof($aTerms))
1122                                                         {
1123                                                                 $sSQL = "select place_id";
1124                                                                 $sSQL .= " from search_name";
1125                                                                 $sSQL .= " where ".join(' and ',$aTerms);
1126                                                                 $sSQL .= " order by ".join(', ',$aOrder);
1127                                                                 if ($aSearch['sHouseNumber'] || $aSearch['sClass'])
1128                                                                         $sSQL .= " limit 50";
1129                                                                 elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass'])
1130                                                                         $sSQL .= " limit 1";
1131                                                                 else
1132                                                                         $sSQL .= " limit ".$this->iLimit;
1133
1134                                                                 if (CONST_Debug) { var_dump($sSQL); }
1135                                                                 $aViewBoxPlaceIDs = $this->oDB->getAll($sSQL);
1136                                                                 if (PEAR::IsError($aViewBoxPlaceIDs))
1137                                                                 {
1138                                                                         failInternalError("Could not get places for search terms.", $sSQL, $aViewBoxPlaceIDs);
1139                                                                 }
1140                                                                 //var_dump($aViewBoxPlaceIDs);
1141                                                                 // Did we have an viewbox matches?
1142                                                                 $aPlaceIDs = array();
1143                                                                 $bViewBoxMatch = false;
1144                                                                 foreach($aViewBoxPlaceIDs as $aViewBoxRow)
1145                                                                 {
1146                                                                         //if ($bViewBoxMatch == 1 && $aViewBoxRow['in_small'] == 'f') break;
1147                                                                         //if ($bViewBoxMatch == 2 && $aViewBoxRow['in_large'] == 'f') break;
1148                                                                         //if ($aViewBoxRow['in_small'] == 't') $bViewBoxMatch = 1;
1149                                                                         //else if ($aViewBoxRow['in_large'] == 't') $bViewBoxMatch = 2;
1150                                                                         $aPlaceIDs[] = $aViewBoxRow['place_id'];
1151                                                                 }
1152                                                         }
1153                                                         //var_Dump($aPlaceIDs);
1154                                                         //exit;
1155
1156                                                         if ($aSearch['sHouseNumber'] && sizeof($aPlaceIDs))
1157                                                         {
1158                                                                 $aRoadPlaceIDs = $aPlaceIDs;
1159                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1160
1161                                                                 // Now they are indexed look for a house attached to a street we found
1162                                                                 $sHouseNumberRegex = '\\\\m'.str_replace(' ','[-,/ ]',$aSearch['sHouseNumber']).'\\\\M';
1163                                                                 $sSQL = "select place_id from placex where parent_place_id in (".$sPlaceIDs.") and housenumber ~* E'".$sHouseNumberRegex."'";
1164                                                                 if (sizeof($this->aExcludePlaceIDs))
1165                                                                 {
1166                                                                         $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1167                                                                 }
1168                                                                 $sSQL .= " limit $this->iLimit";
1169                                                                 if (CONST_Debug) var_dump($sSQL);
1170                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1171
1172                                                                 // If not try the aux fallback table
1173                                                                 if (!sizeof($aPlaceIDs))
1174                                                                 {
1175                                                                         $sSQL = "select place_id from location_property_aux where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1176                                                                         if (sizeof($this->aExcludePlaceIDs))
1177                                                                         {
1178                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1179                                                                         }
1180                                                                         //$sSQL .= " limit $this->iLimit";
1181                                                                         if (CONST_Debug) var_dump($sSQL);
1182                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1183                                                                 }
1184
1185                                                                 if (!sizeof($aPlaceIDs))
1186                                                                 {
1187                                                                         $sSQL = "select place_id from location_property_tiger where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1188                                                                         if (sizeof($this->aExcludePlaceIDs))
1189                                                                         {
1190                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1191                                                                         }
1192                                                                         //$sSQL .= " limit $this->iLimit";
1193                                                                         if (CONST_Debug) var_dump($sSQL);
1194                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1195                                                                 }
1196
1197                                                                 // Fallback to the road
1198                                                                 if (!sizeof($aPlaceIDs) && preg_match('/[0-9]+/', $aSearch['sHouseNumber']))
1199                                                                 {
1200                                                                         $aPlaceIDs = $aRoadPlaceIDs;
1201                                                                 }
1202
1203                                                         }
1204
1205                                                         if ($aSearch['sClass'] && sizeof($aPlaceIDs))
1206                                                         {
1207                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1208                                                                 $aClassPlaceIDs = array();
1209
1210                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'name')
1211                                                                 {
1212                                                                         // If they were searching for a named class (i.e. 'Kings Head pub') then we might have an extra match
1213                                                                         $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1214                                                                         $sSQL .= " and linked_place_id is null";
1215                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1216                                                                         $sSQL .= " order by rank_search asc limit $this->iLimit";
1217                                                                         if (CONST_Debug) var_dump($sSQL);
1218                                                                         $aClassPlaceIDs = $this->oDB->getCol($sSQL);
1219                                                                 }
1220
1221                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') // & in
1222                                                                 {
1223                                                                         $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1224                                                                         $bCacheTable = $this->oDB->getOne($sSQL);
1225
1226                                                                         $sSQL = "select min(rank_search) from placex where place_id in ($sPlaceIDs)";
1227
1228                                                                         if (CONST_Debug) var_dump($sSQL);
1229                                                                         $this->iMaxRank = ((int)$this->oDB->getOne($sSQL));
1230
1231                                                                         // For state / country level searches the normal radius search doesn't work very well
1232                                                                         $sPlaceGeom = false;
1233                                                                         if ($this->iMaxRank < 9 && $bCacheTable)
1234                                                                         {
1235                                                                                 // Try and get a polygon to search in instead
1236                                                                                 $sSQL = "select geometry from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank + 5 and st_geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon') order by rank_search asc limit 1";
1237                                                                                 if (CONST_Debug) var_dump($sSQL);
1238                                                                                 $sPlaceGeom = $this->oDB->getOne($sSQL);
1239                                                                         }
1240
1241                                                                         if ($sPlaceGeom)
1242                                                                         {
1243                                                                                 $sPlaceIDs = false;
1244                                                                         }
1245                                                                         else
1246                                                                         {
1247                                                                                 $this->iMaxRank += 5;
1248                                                                                 $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank";
1249                                                                                 if (CONST_Debug) var_dump($sSQL);
1250                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1251                                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1252                                                                         }
1253
1254                                                                         if ($sPlaceIDs || $sPlaceGeom)
1255                                                                         {
1256
1257                                                                                 $fRange = 0.01;
1258                                                                                 if ($bCacheTable)
1259                                                                                 {
1260                                                                                         // More efficient - can make the range bigger
1261                                                                                         $fRange = 0.05;
1262
1263                                                                                         $sOrderBySQL = '';
1264                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.centroid)";
1265                                                                                         else if ($sPlaceIDs) $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
1266                                                                                         else if ($sPlaceGeom) $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
1267
1268                                                                                         $sSQL = "select distinct l.place_id".($sOrderBySQL?','.$sOrderBySQL:'')." from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." as l";
1269                                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
1270                                                                                         if ($sPlaceIDs)
1271                                                                                         {
1272                                                                                                 $sSQL .= ",placex as f where ";
1273                                                                                                 $sSQL .= "f.place_id in ($sPlaceIDs) and ST_DWithin(l.centroid, f.centroid, $fRange) ";
1274                                                                                         }
1275                                                                                         if ($sPlaceGeom)
1276                                                                                         {
1277                                                                                                 $sSQL .= " where ";
1278                                                                                                 $sSQL .= "ST_Contains('".$sPlaceGeom."', l.centroid) ";
1279                                                                                         }
1280                                                                                         if (sizeof($this->aExcludePlaceIDs))
1281                                                                                         {
1282                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1283                                                                                         }
1284                                                                                         if ($sCountryCodesSQL) $sSQL .= " and lp.calculated_country_code in ($sCountryCodesSQL)";
1285                                                                                         if ($sOrderBySQL) $sSQL .= "order by ".$sOrderBySQL." asc";
1286                                                                                         if ($iOffset) $sSQL .= " offset $iOffset";
1287                                                                                         $sSQL .= " limit $this->iLimit";
1288                                                                                         if (CONST_Debug) var_dump($sSQL);
1289                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1290                                                                                 }
1291                                                                                 else
1292                                                                                 {
1293                                                                                         if (isset($aSearch['fRadius']) && $aSearch['fRadius']) $fRange = $aSearch['fRadius'];
1294
1295                                                                                         $sOrderBySQL = '';
1296                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.geometry)";
1297                                                                                         else $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
1298
1299                                                                                         $sSQL = "select distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'')." from placex as l,placex as f where ";
1300                                                                                         $sSQL .= "f.place_id in ( $sPlaceIDs) and ST_DWithin(l.geometry, f.centroid, $fRange) ";
1301                                                                                         $sSQL .= "and l.class='".$aSearch['sClass']."' and l.type='".$aSearch['sType']."' ";
1302                                                                                         if (sizeof($this->aExcludePlaceIDs))
1303                                                                                         {
1304                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1305                                                                                         }
1306                                                                                         if ($sCountryCodesSQL) $sSQL .= " and l.calculated_country_code in ($sCountryCodesSQL)";
1307                                                                                         if ($sOrderBy) $sSQL .= "order by ".$OrderBysSQL." asc";
1308                                                                                         if ($iOffset) $sSQL .= " offset $iOffset";
1309                                                                                         $sSQL .= " limit $this->iLimit";
1310                                                                                         if (CONST_Debug) var_dump($sSQL);
1311                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1312                                                                                 }
1313                                                                         }
1314                                                                 }
1315
1316                                                                 $aPlaceIDs = $aClassPlaceIDs;
1317
1318                                                         }
1319
1320                                                 }
1321
1322                                                 if (PEAR::IsError($aPlaceIDs))
1323                                                 {
1324                                                         failInternalError("Could not get place IDs from tokens." ,$sSQL, $aPlaceIDs);
1325                                                 }
1326
1327                                                 if (CONST_Debug) { echo "<br><b>Place IDs:</b> "; var_Dump($aPlaceIDs); }
1328
1329                                                 foreach($aPlaceIDs as $iPlaceID)
1330                                                 {
1331                                                         $aResultPlaceIDs[$iPlaceID] = $iPlaceID;
1332                                                 }
1333                                                 if ($iQueryLoop > 20) break;
1334                                         }
1335
1336                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs) && ($this->iMinAddressRank != 0 || $this->iMaxAddressRank != 30))
1337                                         {
1338                                                 // Need to verify passes rank limits before dropping out of the loop (yuk!)
1339                                                 $sSQL = "select place_id from placex where place_id in (".join(',',$aResultPlaceIDs).") ";
1340                                                 $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
1341                                                 if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
1342                                                 if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
1343                                                 $sSQL .= ") UNION select place_id from location_property_tiger where place_id in (".join(',',$aResultPlaceIDs).") ";
1344                                                 $sSQL .= "and (30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
1345                                                 if ($this->aAddressRankList) $sSQL .= " OR 30 in (".join(',',$this->aAddressRankList).")";
1346                                                 $sSQL .= ")";
1347                                                 if (CONST_Debug) var_dump($sSQL);
1348                                                 $aResultPlaceIDs = $this->oDB->getCol($sSQL);
1349                                         }
1350
1351                                         //exit;
1352                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) break;
1353                                         if ($iGroupLoop > 4) break;
1354                                         if ($iQueryLoop > 30) break;
1355                                 }
1356
1357                                 // Did we find anything?
1358                                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs))
1359                                 {
1360                                         $aSearchResults = $this->getDetails($aResultPlaceIDs);
1361                                 }
1362
1363                         }
1364                         else
1365                         {
1366                                 // Just interpret as a reverse geocode
1367                                 $iPlaceID = geocodeReverse((float)$this->aNearPoint[0], (float)$this->aNearPoint[1]);
1368                                 if ($iPlaceID)
1369                                         $aSearchResults = $this->getDetails(array($iPlaceID));
1370                                 else
1371                                         $aSearchResults = array();
1372                         }
1373
1374                         // No results? Done
1375                         if (!sizeof($aSearchResults))
1376                         {
1377                                 return array();
1378                         }
1379
1380                         $aClassType = getClassTypesWithImportance();
1381                         $aRecheckWords = preg_split('/\b/u',$sQuery);
1382                         foreach($aRecheckWords as $i => $sWord)
1383                         {
1384                                 if (!$sWord) unset($aRecheckWords[$i]);
1385                         }
1386
1387                         foreach($aSearchResults as $iResNum => $aResult)
1388                         {
1389                                 if (CONST_Search_AreaPolygons)
1390                                 {
1391                                         // Get the bounding box and outline polygon
1392                                         $sSQL = "select place_id,0 as numfeatures,st_area(geometry) as area,";
1393                                         $sSQL .= "ST_Y(centroid) as centrelat,ST_X(centroid) as centrelon,";
1394                                         $sSQL .= "ST_Y(ST_PointN(ST_ExteriorRing(Box2D(geometry)),4)) as minlat,ST_Y(ST_PointN(ST_ExteriorRing(Box2D(geometry)),2)) as maxlat,";
1395                                         $sSQL .= "ST_X(ST_PointN(ST_ExteriorRing(Box2D(geometry)),1)) as minlon,ST_X(ST_PointN(ST_ExteriorRing(Box2D(geometry)),3)) as maxlon";
1396                                         if ($this->bIncludePolygonAsGeoJSON) $sSQL .= ",ST_AsGeoJSON(geometry) as asgeojson";
1397                                         if ($this->bIncludePolygonAsKML) $sSQL .= ",ST_AsKML(geometry) as askml";
1398                                         if ($this->bIncludePolygonAsSVG) $sSQL .= ",ST_AsSVG(geometry) as assvg";
1399                                         if ($this->bIncludePolygonAsText || $this->bIncludePolygonAsPoints) $sSQL .= ",ST_AsText(geometry) as astext";
1400                                         $sSQL .= " from placex where place_id = ".$aResult['place_id'].' and st_geometrytype(Box2D(geometry)) = \'ST_Polygon\'';
1401                                         $aPointPolygon = $this->oDB->getRow($sSQL);
1402                                         if (PEAR::IsError($aPointPolygon))
1403                                         {
1404                                                 failInternalError("Could not get outline.", $sSQL, $aPointPolygon);
1405                                         }
1406
1407                                         if ($aPointPolygon['place_id'])
1408                                         {
1409                                                 if ($this->bIncludePolygonAsGeoJSON) $aResult['asgeojson'] = $aPointPolygon['asgeojson'];
1410                                                 if ($this->bIncludePolygonAsKML) $aResult['askml'] = $aPointPolygon['askml'];
1411                                                 if ($this->bIncludePolygonAsSVG) $aResult['assvg'] = $aPointPolygon['assvg'];
1412                                                 if ($this->bIncludePolygonAsText) $aResult['astext'] = $aPointPolygon['astext'];
1413
1414                                                 if ($aPointPolygon['centrelon'] !== null && $aPointPolygon['centrelat'] !== null )
1415                                                 {
1416                                                         $aResult['lat'] = $aPointPolygon['centrelat'];
1417                                                         $aResult['lon'] = $aPointPolygon['centrelon'];
1418                                                 }
1419
1420                                                 if ($this->bIncludePolygonAsPoints)
1421                                                 {
1422                                                         // Translate geometary string to point array
1423                                                         if (preg_match('#POLYGON\\(\\(([- 0-9.,]+)#',$aPointPolygon['astext'],$aMatch))
1424                                                         {
1425                                                                 preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/',$aMatch[1],$aPolyPoints,PREG_SET_ORDER);
1426                                                         }
1427                                                         elseif (preg_match('#MULTIPOLYGON\\(\\(\\(([- 0-9.,]+)#',$aPointPolygon['astext'],$aMatch))
1428                                                         {
1429                                                                 preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/',$aMatch[1],$aPolyPoints,PREG_SET_ORDER);
1430                                                         }
1431                                                         elseif (preg_match('#POINT\\((-?[0-9.]+) (-?[0-9.]+)\\)#',$aPointPolygon['astext'],$aMatch))
1432                                                         {
1433                                                                 $fRadius = 0.01;
1434                                                                 $iSteps = ($fRadius * 40000)^2;
1435                                                                 $fStepSize = (2*pi())/$iSteps;
1436                                                                 $aPolyPoints = array();
1437                                                                 for($f = 0; $f < 2*pi(); $f += $fStepSize)
1438                                                                 {
1439                                                                         $aPolyPoints[] = array('',$aMatch[1]+($fRadius*sin($f)),$aMatch[2]+($fRadius*cos($f)));
1440                                                                 }
1441                                                                 $aPointPolygon['minlat'] = $aPointPolygon['minlat'] - $fRadius;
1442                                                                 $aPointPolygon['maxlat'] = $aPointPolygon['maxlat'] + $fRadius;
1443                                                                 $aPointPolygon['minlon'] = $aPointPolygon['minlon'] - $fRadius;
1444                                                                 $aPointPolygon['maxlon'] = $aPointPolygon['maxlon'] + $fRadius;
1445                                                         }
1446                                                 }
1447
1448                                                 // Output data suitable for display (points and a bounding box)
1449                                                 if ($this->bIncludePolygonAsPoints && isset($aPolyPoints))
1450                                                 {
1451                                                         $aResult['aPolyPoints'] = array();
1452                                                         foreach($aPolyPoints as $aPoint)
1453                                                         {
1454                                                                 $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1455                                                         }
1456                                                 }
1457                                                 $aResult['aBoundingBox'] = array($aPointPolygon['minlat'],$aPointPolygon['maxlat'],$aPointPolygon['minlon'],$aPointPolygon['maxlon']);
1458                                         }
1459                                 }
1460
1461                                 if ($aResult['extra_place'] == 'city')
1462                                 {
1463                                         $aResult['class'] = 'place';
1464                                         $aResult['type'] = 'city';
1465                                         $aResult['rank_search'] = 16;
1466                                 }
1467
1468                                 if (!isset($aResult['aBoundingBox']))
1469                                 {
1470                                         // Default
1471                                         $fDiameter = 0.0001;
1472
1473                                         if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1474                                                         && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1475                                         {
1476                                                 $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defzoom'];
1477                                         }
1478                                         elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1479                                                         && $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1480                                         {
1481                                                 $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'];
1482                                         }
1483                                         $fRadius = $fDiameter / 2;
1484
1485                                         $iSteps = max(8,min(100,$fRadius * 3.14 * 100000));
1486                                         $fStepSize = (2*pi())/$iSteps;
1487                                         $aPolyPoints = array();
1488                                         for($f = 0; $f < 2*pi(); $f += $fStepSize)
1489                                         {
1490                                                 $aPolyPoints[] = array('',$aResult['lon']+($fRadius*sin($f)),$aResult['lat']+($fRadius*cos($f)));
1491                                         }
1492                                         $aPointPolygon['minlat'] = $aResult['lat'] - $fRadius;
1493                                         $aPointPolygon['maxlat'] = $aResult['lat'] + $fRadius;
1494                                         $aPointPolygon['minlon'] = $aResult['lon'] - $fRadius;
1495                                         $aPointPolygon['maxlon'] = $aResult['lon'] + $fRadius;
1496
1497                                         // Output data suitable for display (points and a bounding box)
1498                                         if ($this->bIncludePolygonAsPoints)
1499                                         {
1500                                                 $aResult['aPolyPoints'] = array();
1501                                                 foreach($aPolyPoints as $aPoint)
1502                                                 {
1503                                                         $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1504                                                 }
1505                                         }
1506                                         $aResult['aBoundingBox'] = array($aPointPolygon['minlat'],$aPointPolygon['maxlat'],$aPointPolygon['minlon'],$aPointPolygon['maxlon']);
1507                                 }
1508
1509                                 // Is there an icon set for this type of result?
1510                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1511                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1512                                 {
1513                                         $aResult['icon'] = CONST_Website_BaseURL.'images/mapicons/'.$aClassType[$aResult['class'].':'.$aResult['type']]['icon'].'.p.20.png';
1514                                 }
1515
1516                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1517                                                 && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1518                                 {
1519                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'];
1520                                 }
1521                                 elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1522                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1523                                 {
1524                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type']]['label'];
1525                                 }
1526
1527                                 if ($this->bIncludeAddressDetails)
1528                                 {
1529                                         $aResult['address'] = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code']);
1530                                         if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city']))
1531                                         {
1532                                                 $aResult['address'] = array_merge(array('city' => array_shift(array_values($aResult['address']))), $aResult['address']);
1533                                         }
1534                                 }
1535
1536                                 // Adjust importance for the number of exact string matches in the result
1537                                 $aResult['importance'] = max(0.001,$aResult['importance']);
1538                                 $iCountWords = 0;
1539                                 $sAddress = $aResult['langaddress'];
1540                                 foreach($aRecheckWords as $i => $sWord)
1541                                 {
1542                                         if (stripos($sAddress, $sWord)!==false) $iCountWords++;
1543                                 }
1544
1545                                 $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
1546
1547                                 $aResult['name'] = $aResult['langaddress'];
1548                                 $aResult['foundorder'] = -$aResult['addressimportance'];
1549                                 $aSearchResults[$iResNum] = $aResult;
1550                         }
1551                         uasort($aSearchResults, 'byImportance');
1552
1553                         $aOSMIDDone = array();
1554                         $aClassTypeNameDone = array();
1555                         $aToFilter = $aSearchResults;
1556                         $aSearchResults = array();
1557
1558                         $bFirst = true;
1559                         foreach($aToFilter as $iResNum => $aResult)
1560                         {
1561                                 if ($aResult['type'] == 'adminitrative') $aResult['type'] = 'administrative';
1562                                 $this->aExcludePlaceIDs[$aResult['place_id']] = $aResult['place_id'];
1563                                 if ($bFirst)
1564                                 {
1565                                         $fLat = $aResult['lat'];
1566                                         $fLon = $aResult['lon'];
1567                                         if (isset($aResult['zoom'])) $iZoom = $aResult['zoom'];
1568                                         $bFirst = false;
1569                                 }
1570                                 if (!$this->bDeDupe || (!isset($aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']])
1571                                                         && !isset($aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']])))
1572                                 {
1573                                         $aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']] = true;
1574                                         $aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']] = true;
1575                                         $aSearchResults[] = $aResult;
1576                                 }
1577
1578                                 // Absolute limit on number of results
1579                                 if (sizeof($aSearchResults) >= $this->iFinalLimit) break;
1580                         }
1581
1582                         return $aSearchResults;
1583
1584                 } // end lookup()
1585
1586
1587         } // end class
1588
1589
1590 /*
1591                 if (isset($_GET['route']) && $_GET['route'] && isset($_GET['routewidth']) && $_GET['routewidth'])
1592                 {
1593                         $aPoints = explode(',',$_GET['route']);
1594                         if (sizeof($aPoints) % 2 != 0)
1595                         {
1596                                 userError("Uneven number of points");
1597                                 exit;
1598                         }
1599                         $sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
1600                         $fPrevCoord = false;
1601                 }
1602 */