website/search.php

   1 <?php
   2         @define('CONST_ConnectionBucket_PageType', 'Search');
   3
   4         require_once(dirname(dirname(__FILE__)).'/lib/init-website.php');
   5         require_once(CONST_BasePath.'/lib/log.php');
   6
   7         ini_set('memory_limit', '200M');
   8
   9         $oDB =& getDB();
  10
  11         // Display defaults
  12         $fLat = CONST_Default_Lat;
  13         $fLon = CONST_Default_Lon;
  14         $iZoom = CONST_Default_Zoom;
  15         $bBoundingBoxSearch = isset($_GET['bounded'])?(bool)$_GET['bounded']:false;
  16         $sOutputFormat = 'html';
  17         $aSearchResults = array();
  18         $aExcludePlaceIDs = array();
  19         $sCountryCodesSQL = false;
  20         $sSuggestion = $sSuggestionURL = false;
  21         $bDeDupe = isset($_GET['dedupe'])?(bool)$_GET['dedupe']:true;
  22         $bReverseInPlan = false;
  23         $iFinalLimit = isset($_GET['limit'])?(int)$_GET['limit']:10;
  24         $iOffset = isset($_GET['offset'])?(int)$_GET['offset']:0;
  25         $iMaxRank = 20;
  26         if ($iFinalLimit > 50) $iFinalLimit = 50;
  27         $iLimit = $iFinalLimit + min($iFinalLimit, 10);
  28         $iMinAddressRank = 0;
  29         $iMaxAddressRank = 30;
  30         $sAllowedTypesSQLList = false;
  31
  32         // Format for output
  33         if (isset($_GET['format']) && ($_GET['format'] == 'html' || $_GET['format'] == 'xml' || $_GET['format'] == 'json' ||  $_GET['format'] == 'jsonv2'))
  34         {
  35                 $sOutputFormat = $_GET['format'];
  36         }
  37
  38         // Show / use polygons
  39         $bShowPolygons = (boolean)isset($_GET['polygon']) && $_GET['polygon'];
  40     if ($sOutputFormat == 'html') {
  41                 $bAsText = $bShowPolygons;
  42                 $bShowPolygons = false;
  43                 $bAsGeoJSON = false;
  44                 $bAsKML = false;
  45                 $bAsSVG = false;
  46         } else {
  47                 $bAsGeoJSON = (boolean)isset($_GET['polygon_geojson']) && $_GET['polygon_geojson'];
  48                 $bAsKML = (boolean)isset($_GET['polygon_kml']) && $_GET['polygon_kml'];
  49                 $bAsSVG = (boolean)isset($_GET['polygon_svg']) && $_GET['polygon_svg'];
  50                 $bAsText = (boolean)isset($_GET['polygon_text']) && $_GET['polygon_text'];
  51                 if ((($bShowPolygons?1:0)
  52                    + ($bAsGeoJSON?1:0)
  53                    + ($bAsKML?1:0)
  54                    + ($bAsSVG?1:0)
  55                    + ($bAsText?1:0)
  56                         ) > CONST_PolygonOutput_MaximumTypes) {
  57                         if (CONST_PolygonOutput_MaximumTypes) {
  58                                 userError("Select only ".CONST_PolygonOutput_MaximumTypes." polgyon output option");
  59                         } else {
  60                                 userError("Polygon output is disabled");
  61                         }
  62                         exit;
  63                 }
  64         }
  65
  66         // Show address breakdown
  67         $bShowAddressDetails = isset($_GET['addressdetails']) && $_GET['addressdetails'];
  68
  69         // Preferred language
  70         $aLangPrefOrder = getPreferredLanguages();
  71         if (isset($aLangPrefOrder['name:de'])) $bReverseInPlan = true;
  72         if (isset($aLangPrefOrder['name:ru'])) $bReverseInPlan = true;
  73         if (isset($aLangPrefOrder['name:ja'])) $bReverseInPlan = true;
  74         if (isset($aLangPrefOrder['name:pl'])) $bReverseInPlan = true;
  75
  76         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$aLangPrefOrder))."]";
  77
  78         if (isset($_GET['exclude_place_ids']) && $_GET['exclude_place_ids'])
  79         {
  80                 foreach(explode(',',$_GET['exclude_place_ids']) as $iExcludedPlaceID)
  81                 {
  82                         $iExcludedPlaceID = (int)$iExcludedPlaceID;
  83                         if ($iExcludedPlaceID) $aExcludePlaceIDs[$iExcludedPlaceID] = $iExcludedPlaceID;
  84                 }
  85         }
  86
  87         // Only certain ranks of feature
  88         if (isset($_GET['featureType']) && !isset($_GET['featuretype'])) $_GET['featuretype'] = $_GET['featureType'];
  89
  90         if (isset($_GET['featuretype']))
  91         {
  92                 switch($_GET['featuretype'])
  93                 {
  94                 case 'country':
  95                         $iMinAddressRank = $iMaxAddressRank = 4;
  96                         break;
  97                 case 'state':
  98                         $iMinAddressRank = $iMaxAddressRank = 8;
  99                         break;
 100                 case 'city':
 101                         $iMinAddressRank = 14;
 102                         $iMaxAddressRank = 16;
 103                         break;
 104                 case 'settlement':
 105                         $iMinAddressRank = 8;
 106                         $iMaxAddressRank = 20;
 107                         break;
 108                 }
 109         }
 110
 111         if (isset($_GET['countrycodes']))
 112         {
 113                 $aCountryCodes = array();
 114                 foreach(explode(',',$_GET['countrycodes']) as $sCountryCode)
 115                 {
 116                         if (preg_match('/^[a-zA-Z][a-zA-Z]$/', $sCountryCode))
 117                         {
 118                                 $aCountryCodes[] = "'".strtolower($sCountryCode)."'";
 119                         }
 120                 }
 121                 $sCountryCodesSQL = join(',', $aCountryCodes);
 122         }
 123
 124         // Search query
 125         $sQuery = (isset($_GET['q'])?trim($_GET['q']):'');
 126         if (!$sQuery && isset($_SERVER['PATH_INFO']) && $_SERVER['PATH_INFO'][0] == '/')
 127         {
 128                 $sQuery = substr($_SERVER['PATH_INFO'], 1);
 129
 130                 // reverse order of '/' separated string
 131                 $aPhrases = explode('/', $sQuery);
 132                 $aPhrases = array_reverse($aPhrases);
 133                 $sQuery = join(', ',$aPhrases);
 134         }
 135
 136         function structuredAddressElement(&$aStructuredQuery, &$iMinAddressRank, &$iMaxAddressRank, $aParams, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank)
 137         {
 138                 if (!isset($_GET[$sKey])) return false;
 139                 $sValue = trim($_GET[$sKey]);
 140                 if (!$sValue) return false;
 141                 $aStructuredQuery[$sKey] = $sValue;
 142                 if ($iMinAddressRank == 0 && $iMaxAddressRank == 30) {
 143                         $iMinAddressRank = $iNewMinAddressRank;
 144                         $iMaxAddressRank = $iNewMaxAddressRank;
 145                 }
 146                 return true;
 147         }
 148
 149         // Structured query?
 150         $aStructuredOptions = array(
 151                                 array('amenity', 26, 30),
 152                                 array('street', 26, 30),
 153                                 array('city', 14, 24),
 154                                 array('county', 9, 13),
 155                                 array('state', 8, 8),
 156                                 array('country', 4, 4),
 157                                 array('postalcode', 5, 11),
 158                                 );
 159         $aStructuredQuery = array();
 160         $sAllowedTypesSQLList = '';
 161         foreach($aStructuredOptions as $aStructuredOption)
 162         {
 163                 loadStructuredAddressElement($aStructuredQuery, $iMinAddressRank, $iMaxAddressRank, $_GET, $aStructuredOption[0], $aStructuredOption[1], $aStructuredOption[2]);
 164         }
 165         if (sizeof($aStructuredQuery) > 0) {
 166                 $sQuery = join(', ', $aStructuredQuery);
 167                 if ($iMaxAddressRank < 30)
 168                 {
 169                         $sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 170                 }
 171         }
 172
 173         if ($sQuery)
 174         {
 175                 $hLog = logStart($oDB, 'search', $sQuery, $aLangPrefOrder);
 176
 177                 // Hack to make it handle "new york, ny" (and variants) correctly
 178                 $sQuery = str_ireplace(array('New York, ny','new york, new york', 'New York ny','new york new york'), 'new york city, ny', $sQuery);
 179                 if (isset($aLangPrefOrder['name:en']))
 180                 {
 181                         $sQuery = preg_replace('/,\s*il\s*(,|$)/',', illinois\1', $sQuery);
 182                         $sQuery = preg_replace('/,\s*al\s*(,|$)/',', alabama\1', $sQuery);
 183                         $sQuery = preg_replace('/,\s*la\s*(,|$)/',', louisiana\1', $sQuery);
 184                 }
 185
 186                 // If we have a view box create the SQL
 187                 // Small is the actual view box, Large is double (on each axis) that
 188                 $sViewboxCentreSQL = $sViewboxSmallSQL = $sViewboxLargeSQL = false;
 189                 if (isset($_GET['viewboxlbrt']) && $_GET['viewboxlbrt'])
 190                 {
 191                         $aCoOrdinatesLBRT = explode(',',$_GET['viewboxlbrt']);
 192                         $_GET['viewbox'] = $aCoOrdinatesLBRT[0].','.$aCoOrdinatesLBRT[3].','.$aCoOrdinatesLBRT[2].','.$aCoOrdinatesLBRT[1];
 193                 }
 194                 if (isset($_GET['viewbox']) && $_GET['viewbox'])
 195                 {
 196                         $aCoOrdinates = explode(',',$_GET['viewbox']);
 197                         $sViewboxSmallSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$aCoOrdinates[0].",".(float)$aCoOrdinates[1]."),ST_Point(".(float)$aCoOrdinates[2].",".(float)$aCoOrdinates[3].")),4326)";
 198                         $fHeight = $aCoOrdinates[0]-$aCoOrdinates[2];
 199                         $fWidth = $aCoOrdinates[1]-$aCoOrdinates[3];
 200                         $aCoOrdinates[0] += $fHeight;
 201                         $aCoOrdinates[2] -= $fHeight;
 202                         $aCoOrdinates[1] += $fWidth;
 203                         $aCoOrdinates[3] -= $fWidth;
 204                         $sViewboxLargeSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$aCoOrdinates[0].",".(float)$aCoOrdinates[1]."),ST_Point(".(float)$aCoOrdinates[2].",".(float)$aCoOrdinates[3].")),4326)";
 205                 } else {
 206                         $bBoundingBoxSearch = false;
 207                 }
 208                 if (isset($_GET['route']) && $_GET['route'] && isset($_GET['routewidth']) && $_GET['routewidth'])
 209                 {
 210                         $aPoints = explode(',',$_GET['route']);
 211                         if (sizeof($aPoints) % 2 != 0)
 212                         {
 213                                 userError("Uneven number of points");
 214                                 exit;
 215                         }
 216                         $sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
 217                         $fPrevCoord = false;
 218                         foreach($aPoints as $i => $fPoint)
 219                         {
 220                                 if ($i%2)
 221                                 {
 222                                         if ($i != 1) $sViewboxCentreSQL .= ",";
 223                                         $sViewboxCentreSQL .= ((float)$fPoint).' '.$fPrevCoord;
 224                                 }
 225                                 else
 226                                 {
 227                                         $fPrevCoord = (float)$fPoint;
 228                                 }
 229                         }
 230                         $sViewboxCentreSQL .= ")'::geometry,4326)";
 231
 232                         $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/69).")";
 233                         $sViewboxSmallSQL = $oDB->getOne($sSQL);
 234                         if (PEAR::isError($sViewboxSmallSQL))
 235                         {
 236                                 failInternalError("Could not get small viewbox.", $sSQL, $sViewboxSmallSQL);
 237                         }
 238                         $sViewboxSmallSQL = "'".$sViewboxSmallSQL."'::geometry";
 239
 240                         $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/30).")";
 241                         $sViewboxLargeSQL = $oDB->getOne($sSQL);
 242                         if (PEAR::isError($sViewboxLargeSQL))
 243                         {
 244                                 failInternalError("Could not get large viewbox.", $sSQL, $sViewboxLargeSQL);
 245                         }
 246                         $sViewboxLargeSQL = "'".$sViewboxLargeSQL."'::geometry";
 247                         $bBoundingBoxSearch = true;
 248                 }
 249
 250                 // Do we have anything that looks like a lat/lon pair?
 251                 if (preg_match('/\\b([NS])[ ]+([0-9]+[0-9.]*)[ ]+([0-9.]+)?[, ]+([EW])[ ]+([0-9]+)[ ]+([0-9]+[0-9.]*)?\\b/', $sQuery, $aData))
 252                 {
 253                         $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60);
 254                         $fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[5] + $aData[6]/60);
 255                         if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 256                         {
 257                                 $_GET['nearlat'] = $fQueryLat;
 258                                 $_GET['nearlon'] = $fQueryLon;
 259                                 $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 260                         }
 261                 }
 262                 elseif (preg_match('/\\b([0-9]+)[ ]+([0-9]+[0-9.]*)?[ ]+([NS])[, ]+([0-9]+)[ ]+([0-9]+[0-9.]*)?[ ]+([EW])\\b/', $sQuery, $aData))
 263                 {
 264                         $fQueryLat = ($aData[3]=='N'?1:-1) * ($aData[1] + $aData[2]/60);
 265                         $fQueryLon = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
 266                         if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 267                         {
 268                                 $_GET['nearlat'] = $fQueryLat;
 269                                 $_GET['nearlon'] = $fQueryLon;
 270                                 $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 271                         }
 272                 }
 273                 elseif (preg_match('/(\\[|^|\\b)(-?[0-9]+[0-9.]*)[, ]+(-?[0-9]+[0-9.]*)(\\]|$|\\b)/', $sQuery, $aData))
 274                 {
 275                         $fQueryLat = $aData[2];
 276                         $fQueryLon = $aData[3];
 277                         if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 278                         {
 279                                 $_GET['nearlat'] = $fQueryLat;
 280                                 $_GET['nearlon'] = $fQueryLon;
 281                                 $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 282                         }
 283                 }
 284
 285                 if ($sQuery || $aStructuredQuery)
 286                 {
 287                         // Start with a blank search
 288                         $aSearches = array(
 289                                 array('iSearchRank' => 0, 'iNamePhrase' => -1, 'sCountryCode' => false, 'aName'=>array(), 'aAddress'=>array(), 'aFullNameAddress'=>array(),
 290                                         'aNameNonSearch'=>array(), 'aAddressNonSearch'=>array(),
 291                                         'sOperator'=>'', 'aFeatureName' => array(), 'sClass'=>'', 'sType'=>'', 'sHouseNumber'=>'', 'fLat'=>'', 'fLon'=>'', 'fRadius'=>'')
 292                         );
 293
 294                         $sNearPointSQL = false;
 295                         if (isset($_GET['nearlat']) && isset($_GET['nearlon']))
 296                         {
 297                                 $sNearPointSQL = "ST_SetSRID(ST_Point(".(float)$_GET['nearlon'].",".$_GET['nearlat']."),4326)";
 298                                 $aSearches[0]['fLat'] = (float)$_GET['nearlat'];
 299                                 $aSearches[0]['fLon'] = (float)$_GET['nearlon'];
 300                                 $aSearches[0]['fRadius'] = 0.1;
 301                         }
 302
 303                         $bSpecialTerms = false;
 304                         preg_match_all('/\\[(.*)=(.*)\\]/', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 305                         $aSpecialTerms = array();
 306                         foreach($aSpecialTermsRaw as $aSpecialTerm)
 307                         {
 308                                 $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 309                                 $aSpecialTerms[strtolower($aSpecialTerm[1])] = $aSpecialTerm[2];
 310                         }
 311
 312                         preg_match_all('/\\[([\\w ]*)\\]/u', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 313                         $aSpecialTerms = array();
 314                         if (isset($aStructuredQuery['amenity']) && $aStructuredQuery['amenity'])
 315                         {
 316                                 $aSpecialTermsRaw[] = array('['.$aStructuredQuery['amenity'].']', $aStructuredQuery['amenity']);
 317                                 unset($aStructuredQuery['amenity']);
 318                         }
 319                         foreach($aSpecialTermsRaw as $aSpecialTerm)
 320                         {
 321                                 $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 322                                 $sToken = $oDB->getOne("select make_standard_name('".$aSpecialTerm[1]."') as string");
 323                                 $sSQL = 'select * from (select word_id,word_token, word, class, type, location, country_code, operator';
 324                                 $sSQL .= ' from word where word_token in (\' '.$sToken.'\')) as x where (class is not null and class not in (\'place\')) or country_code is not null';
 325                                 if (CONST_Debug) var_Dump($sSQL);
 326                                 $aSearchWords = $oDB->getAll($sSQL);
 327                                 $aNewSearches = array();
 328                                 foreach($aSearches as $aSearch)
 329                                 {
 330                                         foreach($aSearchWords as $aSearchTerm)
 331                                         {
 332                                                 $aNewSearch = $aSearch;
 333                                                 if ($aSearchTerm['country_code'])
 334                                                 {
 335                                                         $aNewSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 336                                                         $aNewSearches[] = $aNewSearch;
 337                                                         $bSpecialTerms = true;
 338                                                 }
 339                                                 if ($aSearchTerm['class'])
 340                                                 {
 341                                                         $aNewSearch['sClass'] = $aSearchTerm['class'];
 342                                                         $aNewSearch['sType'] = $aSearchTerm['type'];
 343                                                         $aNewSearches[] = $aNewSearch;
 344                                                         $bSpecialTerms = true;
 345                                                 }
 346                                         }
 347                                 }
 348                                 $aSearches = $aNewSearches;
 349                         }
 350
 351                         // Split query into phrases
 352                         // Commas are used to reduce the search space by indicating where phrases split
 353                         if (sizeof($aStructuredQuery) > 0)
 354                         {
 355                                 $aPhrases = $aStructuredQuery;
 356                                 $bStructuredPhrases = true;
 357                         }
 358                         else
 359                         {
 360                                 $aPhrases = explode(',',$sQuery);
 361                                 $bStructuredPhrases = false;
 362                         }
 363
 364
 365                         // Convert each phrase to standard form
 366                         // Create a list of standard words
 367                         // Get all 'sets' of words
 368                         // Generate a complete list of all
 369                         $aTokens = array();
 370                         foreach($aPhrases as $iPhrase => $sPhrase)
 371                         {
 372                                 $aPhrase = $oDB->getRow("select make_standard_name('".pg_escape_string($sPhrase)."') as string");
 373                                 if (PEAR::isError($aPhrase))
 374                                 {
 375                                         userError("Illegal query string (not an UTF-8 string): ".$sPhrase);
 376                                         if (CONST_Debug) var_dump($aPhrase);
 377                                         exit;
 378                                 }
 379                                 if (trim($aPhrase['string']))
 380                                 {
 381                                         $aPhrases[$iPhrase] = $aPhrase;
 382                                         $aPhrases[$iPhrase]['words'] = explode(' ',$aPhrases[$iPhrase]['string']);
 383                                         $aPhrases[$iPhrase]['wordsets'] = getWordSets($aPhrases[$iPhrase]['words']);
 384                                         $aTokens = array_merge($aTokens, getTokensFromSets($aPhrases[$iPhrase]['wordsets']));
 385                                 }
 386                                 else
 387                                 {
 388                                         unset($aPhrases[$iPhrase]);
 389                                 }
 390                         }
 391
 392                         // reindex phrases - we make assumptions later on
 393                         $aPhraseTypes = array_keys($aPhrases);
 394                         $aPhrases = array_values($aPhrases);
 395
 396                         if (sizeof($aTokens))
 397                         {
 398
 399                         // Check which tokens we have, get the ID numbers
 400                         $sSQL = 'select word_id,word_token, word, class, type, location, country_code, operator, search_name_count';
 401                         $sSQL .= ' from word where word_token in ('.join(',',array_map("getDBQuoted",$aTokens)).')';
 402 //                      $sSQL .= ' and search_name_count < '.CONST_Max_Word_Frequency;
 403 //                      $sSQL .= ' group by word_token, word, class, type, location, country_code';
 404
 405                         if (CONST_Debug) var_Dump($sSQL);
 406
 407                         $aValidTokens = array();
 408                         if (sizeof($aTokens))
 409                                 $aDatabaseWords = $oDB->getAll($sSQL);
 410                         else
 411                                 $aDatabaseWords = array();
 412                         if (PEAR::IsError($aDatabaseWords))
 413                         {
 414                                 failInternalError("Could not get word tokens.", $sSQL, $aDatabaseWords);
 415                         }
 416                         $aPossibleMainWordIDs = array();
 417                         $aWordFrequencyScores = array();
 418                         foreach($aDatabaseWords as $aToken)
 419                         {
 420                                 // Very special case - require 2 letter country param to match the country code found
 421                                 if ($bStructuredPhrases && $aToken['country_code'] && !empty($aStructuredQuery['country'])
 422                                   && strlen($aStructuredQuery['country']) == 2 && strtolower($aStructuredQuery['country']) != $aToken['country_code'])
 423                                 {
 424                                         continue;
 425                                 }
 426
 427                                 if (isset($aValidTokens[$aToken['word_token']]))
 428                                 {
 429                                         $aValidTokens[$aToken['word_token']][] = $aToken;
 430                                 }
 431                                 else
 432                                 {
 433                                         $aValidTokens[$aToken['word_token']] = array($aToken);
 434                                 }
 435                                 if (!$aToken['class'] && !$aToken['country_code']) $aPossibleMainWordIDs[$aToken['word_id']] = 1;
 436                                 $aWordFrequencyScores[$aToken['word_id']] = $aToken['search_name_count'] + 1;
 437                         }
 438                         if (CONST_Debug) var_Dump($aPhrases, $aValidTokens);
 439
 440                         $aSuggestion = array();
 441                         $bSuggestion = false;
 442                         if (CONST_Suggestions_Enabled)
 443                         {
 444                                 foreach($aPhrases as $iPhrase => $aPhrase)
 445                                 {
 446                                         if (!isset($aValidTokens[' '.$aPhrase['wordsets'][0][0]]))
 447                                         {
 448                                                 $sQuotedPhrase = getDBQuoted(' '.$aPhrase['wordsets'][0][0]);
 449                                                 $aSuggestionWords = getWordSuggestions($oDB, $aPhrase['wordsets'][0][0]);
 450                                                 $aRow = $aSuggestionWords[0];
 451                                                 if ($aRow && $aRow['word'])
 452                                                 {
 453                                                         $aSuggestion[] = $aRow['word'];
 454                                                         $bSuggestion = true;
 455                                                 }
 456                                                 else
 457                                                 {
 458                                                         $aSuggestion[] = $aPhrase['string'];
 459                                                 }
 460                                         }
 461                                         else
 462                                         {
 463                                                 $aSuggestion[] = $aPhrase['string'];
 464                                         }
 465                                 }
 466                         }
 467                         if ($bSuggestion) $sSuggestion = join(', ',$aSuggestion);
 468
 469                         // Try and calculate GB postcodes we might be missing
 470                         foreach($aTokens as $sToken)
 471                         {
 472                                 // Source of gb postcodes is now definitive - always use
 473                                 if (preg_match('/^([A-Z][A-Z]?[0-9][0-9A-Z]? ?[0-9])([A-Z][A-Z])$/', strtoupper(trim($sToken)), $aData))
 474                                 {
 475                                         if (substr($aData[1],-2,1) != ' ')
 476                                         {
 477                                                 $aData[0] = substr($aData[0],0,strlen($aData[1]-1)).' '.substr($aData[0],strlen($aData[1]-1));
 478                                                 $aData[1] = substr($aData[1],0,-1).' '.substr($aData[1],-1,1);
 479                                         }
 480                                         $aGBPostcodeLocation = gbPostcodeCalculate($aData[0], $aData[1], $aData[2], $oDB);
 481                                         if ($aGBPostcodeLocation)
 482                                         {
 483                                                 $aValidTokens[$sToken] = $aGBPostcodeLocation;
 484                                         }
 485                                 }
 486                         }
 487
 488                         foreach($aTokens as $sToken)
 489                         {
 490                                 // Unknown single word token with a number - assume it is a house number
 491                                 if (!isset($aValidTokens[' '.$sToken]) && strpos($sToken,' ') === false && preg_match('/[0-9]/', $sToken))
 492                                 {
 493                                         $aValidTokens[' '.$sToken] = array(array('class'=>'place','type'=>'house'));
 494                                 }
 495                         }
 496
 497                         // Any words that have failed completely?
 498                         // TODO: suggestions
 499
 500                         // Start the search process
 501                         $aResultPlaceIDs = array();
 502
 503                         /*
 504                                 Calculate all searches using aValidTokens i.e.
 505
 506                                 'Wodsworth Road, Sheffield' =>
 507
 508                                 Phrase Wordset
 509                                 0      0       (wodsworth road)
 510                                 0      1       (wodsworth)(road)
 511                                 1      0       (sheffield)
 512
 513                                 Score how good the search is so they can be ordered
 514                         */
 515                                 foreach($aPhrases as $iPhrase => $sPhrase)
 516                                 {
 517                                         $aNewPhraseSearches = array();
 518                                         if ($bStructuredPhrases) $sPhraseType = $aPhraseTypes[$iPhrase];
 519                                         else $sPhraseType = '';
 520
 521                                         foreach($aPhrases[$iPhrase]['wordsets'] as $aWordset)
 522                                         {
 523                                                 $aWordsetSearches = $aSearches;
 524
 525                                                 // Add all words from this wordset
 526                                                 foreach($aWordset as $iToken => $sToken)
 527                                                 {
 528 //echo "<br><b>$sToken</b>";
 529                                                         $aNewWordsetSearches = array();
 530
 531                                                         foreach($aWordsetSearches as $aCurrentSearch)
 532                                                         {
 533 //echo "<i>";
 534 //var_dump($aCurrentSearch);
 535 //echo "</i>";
 536
 537                                                                 // If the token is valid
 538                                                                 if (isset($aValidTokens[' '.$sToken]))
 539                                                                 {
 540                                                                         foreach($aValidTokens[' '.$sToken] as $aSearchTerm)
 541                                                                         {
 542                                                                                 $aSearch = $aCurrentSearch;
 543                                                                                 $aSearch['iSearchRank']++;
 544                                                                                 if (($sPhraseType == '' || $sPhraseType == 'country') && !empty($aSearchTerm['country_code']) && $aSearchTerm['country_code'] != '0')
 545                                                                                 {
 546                                                                                         if ($aSearch['sCountryCode'] === false)
 547                                                                                         {
 548                                                                                                 $aSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 549                                                                                                 // Country is almost always at the end of the string - increase score for finding it anywhere else (optimisation)
 550                                                                                                 // If reverse order is enabled, it may appear at the beginning as well.
 551                                                                                                 if (($iToken+1 != sizeof($aWordset) || $iPhrase+1 != sizeof($aPhrases)) &&
 552                                                                                                                 (!$bReverseInPlan || $iToken > 0 || $iPhrase > 0))
 553                                                                                                 {
 554                                                                                                         $aSearch['iSearchRank'] += 5;
 555                                                                                                 }
 556                                                                                                 if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 557                                                                                         }
 558                                                                                 }
 559                                                                                 elseif (isset($aSearchTerm['lat']) && $aSearchTerm['lat'] !== '' && $aSearchTerm['lat'] !== null)
 560                                                                                 {
 561                                                                                         if ($aSearch['fLat'] === '')
 562                                                                                         {
 563                                                                                                 $aSearch['fLat'] = $aSearchTerm['lat'];
 564                                                                                                 $aSearch['fLon'] = $aSearchTerm['lon'];
 565                                                                                                 $aSearch['fRadius'] = $aSearchTerm['radius'];
 566                                                                                                 if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 567                                                                                         }
 568                                                                                 }
 569                                                                                 elseif (($sPhraseType == '' || $sPhraseType == 'street') && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house')
 570                                                                                 {
 571                                                                                         if ($aSearch['sHouseNumber'] === '')
 572                                                                                         {
 573                                                                                                 $aSearch['sHouseNumber'] = $sToken;
 574                                                                                                 if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 575 /*
 576                                                                                                 // Fall back to not searching for this item (better than nothing)
 577                                                                                                 $aSearch = $aCurrentSearch;
 578                                                                                                 $aSearch['iSearchRank'] += 1;
 579                                                                                                 if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 580 */
 581                                                                                         }
 582                                                                                 }
 583                                                                                 elseif ($sPhraseType == '' && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null)
 584                                                                                 {
 585                                                                                         if ($aSearch['sClass'] === '')
 586                                                                                         {
 587                                                                                                 $aSearch['sOperator'] = $aSearchTerm['operator'];
 588                                                                                                 $aSearch['sClass'] = $aSearchTerm['class'];
 589                                                                                                 $aSearch['sType'] = $aSearchTerm['type'];
 590                                                                                                 if (sizeof($aSearch['aName'])) $aSearch['sOperator'] = 'name';
 591                                                                                                 else $aSearch['sOperator'] = 'near'; // near = in for the moment
 592
 593                                                                                                 // Do we have a shortcut id?
 594                                                                                                 if ($aSearch['sOperator'] == 'name')
 595                                                                                                 {
 596                                                                                                         $sSQL = "select get_tagpair('".$aSearch['sClass']."', '".$aSearch['sType']."')";
 597                                                                                                         if ($iAmenityID = $oDB->getOne($sSQL))
 598                                                                                                         {
 599                                                                                                                 $aValidTokens[$aSearch['sClass'].':'.$aSearch['sType']] = array('word_id' => $iAmenityID);
 600                                                                                                                 $aSearch['aName'][$iAmenityID] = $iAmenityID;
 601                                                                                                                 $aSearch['sClass'] = '';
 602                                                                                                                 $aSearch['sType'] = '';
 603                                                                                                         }
 604                                                                                                 }
 605                                                                                                 if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 606                                                                                         }
 607                                                                                 }
 608                                                                                 elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 609                                                                                 {
 610                                                                                         if (sizeof($aSearch['aName']))
 611                                                                                         {
 612                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strlen($sToken) < 4 || strpos($sToken, ' ') !== false))
 613                                                                                                 {
 614                                                                                                         $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 615                                                                                                 }
 616                                                                                                 else
 617                                                                                                 {
 618                                                                                                         $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 619                                                                                                         $aSearch['iSearchRank'] += 1000; // skip;
 620                                                                                                 }
 621                                                                                         }
 622                                                                                         else
 623                                                                                         {
 624                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 625 //                                                                                              $aSearch['iNamePhrase'] = $iPhrase;
 626                                                                                         }
 627                                                                                         if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 628                                                                                 }
 629                                                                         }
 630                                                                 }
 631                                                                 if (isset($aValidTokens[$sToken]))
 632                                                                 {
 633                                                                         // Allow searching for a word - but at extra cost
 634                                                                         foreach($aValidTokens[$sToken] as $aSearchTerm)
 635                                                                         {
 636                                                                                 if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 637                                                                                 {
 638                                                                                         if ((!$bStructuredPhrases || $iPhrase > 0) && sizeof($aCurrentSearch['aName']) && strlen($sToken) >= 4)
 639                                                                                         {
 640                                                                                                 $aSearch = $aCurrentSearch;
 641                                                                                                 $aSearch['iSearchRank'] += 1;
 642                                                                                                 if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 643                                                                                                 {
 644                                                                                                         $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 645                                                                                                         if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 646                                                                                                 }
 647                                                                                                 elseif (isset($aValidTokens[' '.$sToken])) // revert to the token version?
 648                                                                                                 {
 649                                                                                                         foreach($aValidTokens[' '.$sToken] as $aSearchTermToken)
 650                                                                                                         {
 651                                                                                                                 if (empty($aSearchTermToken['country_code'])
 652                                                                                                                         && empty($aSearchTermToken['lat'])
 653                                                                                                                         && empty($aSearchTermToken['class']))
 654                                                                                                                 {
 655                                                                                                                         $aSearch = $aCurrentSearch;
 656                                                                                                                         $aSearch['iSearchRank'] += 1;
 657                                                                                                                         $aSearch['aAddress'][$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
 658                                                                                                                         if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 659                                                                                                                 }
 660                                                                                                         }
 661                                                                                                 }
 662                                                                                                 else
 663                                                                                                 {
 664                                                                                                         $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 665                                                                                                         if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 666                                                                                                 }
 667                                                                                         }
 668
 669                                                                                         if (!sizeof($aCurrentSearch['aName']) || $aCurrentSearch['iNamePhrase'] == $iPhrase)
 670                                                                                         {
 671                                                                                                 $aSearch = $aCurrentSearch;
 672                                                                                                 $aSearch['iSearchRank'] += 2;
 673                                                                                                 if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 674                                                                                                 if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 675                                                                                                         $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 676                                                                                                 else
 677                                                                                                         $aSearch['aNameNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 678                                                                                                 $aSearch['iNamePhrase'] = $iPhrase;
 679                                                                                                 if ($aSearch['iSearchRank'] < $iMaxRank) $aNewWordsetSearches[] = $aSearch;
 680                                                                                         }
 681                                                                                 }
 682                                                                         }
 683                                                                 }
 684                                                                 else
 685                                                                 {
 686                                                                         // Allow skipping a word - but at EXTREAM cost
 687                                                                         //$aSearch = $aCurrentSearch;
 688                                                                         //$aSearch['iSearchRank']+=100;
 689                                                                         //$aNewWordsetSearches[] = $aSearch;
 690                                                                 }
 691                                                         }
 692                                                         // Sort and cut
 693                                                         usort($aNewWordsetSearches, 'bySearchRank');
 694                                                         $aWordsetSearches = array_slice($aNewWordsetSearches, 0, 50);
 695                                                 }
 696 //                                              var_Dump('<hr>',sizeof($aWordsetSearches)); exit;
 697
 698                                                 $aNewPhraseSearches = array_merge($aNewPhraseSearches, $aNewWordsetSearches);
 699                                                 usort($aNewPhraseSearches, 'bySearchRank');
 700
 701           $aSearchHash = array();
 702           foreach($aNewPhraseSearches as $iSearch => $aSearch)
 703           {
 704             $sHash = serialize($aSearch);
 705             if (isset($aSearchHash[$sHash]))
 706             {
 707               unset($aNewPhraseSearches[$iSearch]);
 708             }
 709             else
 710             {
 711               $aSearchHash[$sHash] = 1;
 712             }
 713           }
 714
 715                                                 $aNewPhraseSearches = array_slice($aNewPhraseSearches, 0, 50);
 716                                         }
 717
 718                                         // Re-group the searches by their score, junk anything over 20 as just not worth trying
 719                                         $aGroupedSearches = array();
 720                                         foreach($aNewPhraseSearches as $aSearch)
 721                                         {
 722                                                 if ($aSearch['iSearchRank'] < $iMaxRank)
 723                                                 {
 724                                                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
 725                                                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
 726                                                 }
 727                                         }
 728                                         ksort($aGroupedSearches);
 729
 730                                         $iSearchCount = 0;
 731                                         $aSearches = array();
 732                                         foreach($aGroupedSearches as $iScore => $aNewSearches)
 733                                         {
 734                                                 $iSearchCount += sizeof($aNewSearches);
 735                                                 $aSearches = array_merge($aSearches, $aNewSearches);
 736                                                 if ($iSearchCount > 50) break;
 737                                         }
 738
 739 //                                      if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
 740
 741                                 }
 742                         }
 743                         else
 744                         {
 745                                         // Re-group the searches by their score, junk anything over 20 as just not worth trying
 746                                         $aGroupedSearches = array();
 747                                         foreach($aSearches as $aSearch)
 748                                         {
 749                                                 if ($aSearch['iSearchRank'] < $iMaxRank)
 750                                                 {
 751                                                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
 752                                                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
 753                                                 }
 754                                         }
 755                                         ksort($aGroupedSearches);
 756                         }
 757
 758                                 if (CONST_Debug) var_Dump($aGroupedSearches);
 759
 760                                 if ($bReverseInPlan)
 761                                 {
 762                                         $aCopyGroupedSearches = $aGroupedSearches;
 763                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
 764                                         {
 765                                                 foreach($aSearches as $iSearch => $aSearch)
 766                                                 {
 767                                                         if (sizeof($aSearch['aAddress']))
 768                                                         {
 769                                                                 $iReverseItem = array_pop($aSearch['aAddress']);
 770                                                                 if (isset($aPossibleMainWordIDs[$iReverseItem]))
 771                                                                 {
 772                                                                         $aSearch['aAddress'] = array_merge($aSearch['aAddress'], $aSearch['aName']);
 773                                                                         $aSearch['aName'] = array($iReverseItem);
 774                                                                         $aGroupedSearches[$iGroup][] = $aSearch;
 775                                                                 }
 776 //                                                              $aReverseSearch['aName'][$iReverseItem] = $iReverseItem;
 777         //                                                      $aGroupedSearches[$iGroup][] = $aReverseSearch;
 778                                                         }
 779                                                 }
 780                                         }
 781                                 }
 782
 783                                 if (CONST_Search_TryDroppedAddressTerms && sizeof($aStructuredQuery) > 0)
 784                                 {
 785                                         $aCopyGroupedSearches = $aGroupedSearches;
 786                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
 787                                         {
 788                                                 foreach($aSearches as $iSearch => $aSearch)
 789                                                 {
 790                                                         $aReductionsList = array($aSearch['aAddress']);
 791                                                         $iSearchRank = $aSearch['iSearchRank'];
 792                                                         while(sizeof($aReductionsList) > 0)
 793                                                         {
 794                                                                 $iSearchRank += 5;
 795                                                                 if ($iSearchRank > iMaxRank) break 3;
 796                                                                 $aNewReductionsList = array();
 797                                                                 foreach($aReductionsList as $aReductionsWordList)
 798                                                                 {
 799                                                                         for ($iReductionWord = 0; $iReductionWord < sizeof($aReductionsWordList); $iReductionWord++)
 800                                                                         {
 801                                                                                 $aReductionsWordListResult = array_merge(array_slice($aReductionsWordList, 0, $iReductionWord), array_slice($aReductionsWordList, $iReductionWord+1));
 802                                                                                 $aReverseSearch = $aSearch;
 803                                                                                 $aSearch['aAddress'] = $aReductionsWordListResult;
 804                                                                                 $aSearch['iSearchRank'] = $iSearchRank;
 805                                                                                 $aGroupedSearches[$iSearchRank][] = $aReverseSearch;
 806                                                                                 if (sizeof($aReductionsWordListResult) > 0)
 807                                                                                 {
 808                                                                                         $aNewReductionsList[] = $aReductionsWordListResult;
 809                                                                                 }
 810                                                                         }
 811                                                                 }
 812                                                                 $aReductionsList = $aNewReductionsList;
 813                                                         }
 814                                                 }
 815                                         }
 816                                         ksort($aGroupedSearches);
 817                                 }
 818
 819                                 // Filter out duplicate searches
 820                                 $aSearchHash = array();
 821                                 foreach($aGroupedSearches as $iGroup => $aSearches)
 822                                 {
 823                                         foreach($aSearches as $iSearch => $aSearch)
 824                                         {
 825                                                 $sHash = serialize($aSearch);
 826                                                 if (isset($aSearchHash[$sHash]))
 827                                                 {
 828                                                         unset($aGroupedSearches[$iGroup][$iSearch]);
 829                                                         if (sizeof($aGroupedSearches[$iGroup]) == 0) unset($aGroupedSearches[$iGroup]);
 830                                                 }
 831                                                 else
 832                                                 {
 833                                                         $aSearchHash[$sHash] = 1;
 834                                                 }
 835                                         }
 836                                 }
 837
 838                                 if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
 839
 840                                 $iGroupLoop = 0;
 841                                 $iQueryLoop = 0;
 842                                 foreach($aGroupedSearches as $iGroupedRank => $aSearches)
 843                                 {
 844                                         $iGroupLoop++;
 845                                         foreach($aSearches as $aSearch)
 846                                         {
 847                                                 $iQueryLoop++;
 848
 849                                                 if (CONST_Debug) { echo "<hr><b>Search Loop, group $iGroupLoop, loop $iQueryLoop</b>"; }
 850                                                 if (CONST_Debug) _debugDumpGroupedSearches(array($iGroupedRank => array($aSearch)), $aValidTokens);
 851
 852
 853                                                 // Must have a location term
 854                                                 if (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['fLon'])
 855                                                 {
 856                                                         if ($aSearch['sCountryCode'] && !$aSearch['sClass'] && !$aSearch['sHouseNumber'])
 857                                                         {
 858                                                                 if (4 >= $iMinAddressRank && 4 <= $iMaxAddressRank)
 859                                                                 {
 860                                                                         $sSQL = "select place_id from placex where calculated_country_code='".$aSearch['sCountryCode']."' and rank_search = 4";
 861                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
 862                                                                         $sSQL .= " order by st_area(geometry) desc limit 1";
 863                                                                         if (CONST_Debug) var_dump($sSQL);
 864                                                                         $aPlaceIDs = $oDB->getCol($sSQL);
 865                                                                 }
 866                                                         }
 867                                                         else
 868                                                         {
 869                                                                 if (!$bBoundingBoxSearch && !$aSearch['fLon']) continue;
 870                                                                 if (!$aSearch['sClass']) continue;
 871                                                                 $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
 872                                                                 if ($oDB->getOne($sSQL))
 873                                                                 {
 874                                                                 $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
 875                                                                 if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
 876                                                                 $sSQL .= " where st_contains($sViewboxSmallSQL, ct.centroid)";
 877                                                                 if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
 878                                                                 if (sizeof($aExcludePlaceIDs))
 879                                                                 {
 880                                                                         $sSQL .= " and place_id not in (".join(',',$aExcludePlaceIDs).")";
 881                                                                 }
 882                                                                 if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
 883                                                                 $sSQL .= " limit $iLimit";
 884                                                                 if (CONST_Debug) var_dump($sSQL);
 885                                                                 $aPlaceIDs = $oDB->getCol($sSQL);
 886
 887                                                                 // If excluded place IDs are given, it is fair to assume that
 888                                                                 // there have been results in the small box, so no further
 889                                                                 // expansion in that case.
 890                                                                 if (!sizeof($aPlaceIDs) && !sizeof($aExcludePlaceIDs))
 891                                                                 {
 892                                                                         $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
 893                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
 894                                                                         $sSQL .= " where st_contains($sViewboxLargeSQL, ct.centroid)";
 895                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
 896                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
 897                                                                         $sSQL .= " limit $iLimit";
 898                                                                         if (CONST_Debug) var_dump($sSQL);
 899                                                                         $aPlaceIDs = $oDB->getCol($sSQL);
 900                                                                 }
 901                                                         }
 902                                                         else
 903                                                         {
 904                                                                 $sSQL = "select place_id from placex where class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
 905                                                                 $sSQL .= " and st_contains($sViewboxSmallSQL, geometry) and linked_place_id is null";
 906                                                                 if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
 907                                                                 if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, centroid) asc";
 908                                                                 $sSQL .= " limit $iLimit";
 909                                                                 if (CONST_Debug) var_dump($sSQL);
 910                                                                 $aPlaceIDs = $oDB->getCol($sSQL);
 911                                                         }
 912                                                         }
 913                                                 }
 914                                                 else
 915                                                 {
 916                                                         $aPlaceIDs = array();
 917
 918                                                         // First we need a position, either aName or fLat or both
 919                                                         $aTerms = array();
 920                                                         $aOrder = array();
 921
 922                                                         // TODO: filter out the pointless search terms (2 letter name tokens and less)
 923                                                         // they might be right - but they are just too darned expensive to run
 924                                                         if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'],",")."]";
 925                                                         if (sizeof($aSearch['aNameNonSearch'])) $aTerms[] = "array_cat(name_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aNameNonSearch'],",")."]";
 926                                                         if (sizeof($aSearch['aAddress']) && $aSearch['aName'] != $aSearch['aAddress'])
 927                                                         {
 928                                                                 // For infrequent name terms disable index usage for address
 929                                                                 if (CONST_Search_NameOnlySearchFrequencyThreshold &&
 930                                                                         sizeof($aSearch['aName']) == 1 &&
 931                                                                         $aWordFrequencyScores[$aSearch['aName'][reset($aSearch['aName'])]] < CONST_Search_NameOnlySearchFrequencyThreshold)
 932                                                                 {
 933                                                                         $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join(array_merge($aSearch['aAddress'],$aSearch['aAddressNonSearch']),",")."]";
 934                                                                 }
 935                                                                 else
 936                                                                 {
 937                                                                         $aTerms[] = "nameaddress_vector @> ARRAY[".join($aSearch['aAddress'],",")."]";
 938                                                                         if (sizeof($aSearch['aAddressNonSearch'])) $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddressNonSearch'],",")."]";
 939                                                                 }
 940                                                         }
 941                                                         if ($aSearch['sCountryCode']) $aTerms[] = "country_code = '".pg_escape_string($aSearch['sCountryCode'])."'";
 942                                                         if ($aSearch['sHouseNumber']) $aTerms[] = "address_rank in (26,27)";
 943                                                         if ($aSearch['fLon'] && $aSearch['fLat'])
 944                                                         {
 945                                                                 $aTerms[] = "ST_DWithin(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326), ".$aSearch['fRadius'].")";
 946                                                                 $aOrder[] = "ST_Distance(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326)) ASC";
 947                                                         }
 948                                                         if (sizeof($aExcludePlaceIDs))
 949                                                         {
 950                                                                 $aTerms[] = "place_id not in (".join(',',$aExcludePlaceIDs).")";
 951                                                         }
 952                                                         if ($sCountryCodesSQL)
 953                                                         {
 954                                                                 $aTerms[] = "country_code in ($sCountryCodesSQL)";
 955                                                         }
 956
 957                                                         if ($bBoundingBoxSearch) $aTerms[] = "centroid && $sViewboxSmallSQL";
 958                                                         if ($sNearPointSQL) $aOrder[] = "ST_Distance($sNearPointSQL, centroid) asc";
 959
 960                                                         $sImportanceSQL = '(case when importance = 0 OR importance IS NULL then 0.75-(search_rank::float/40) else importance end)';
 961                                                         if ($sViewboxSmallSQL) $sImportanceSQL .= " * case when ST_Contains($sViewboxSmallSQL, centroid) THEN 1 ELSE 0.5 END";
 962                                                         if ($sViewboxLargeSQL) $sImportanceSQL .= " * case when ST_Contains($sViewboxLargeSQL, centroid) THEN 1 ELSE 0.5 END";
 963                                                         $aOrder[] = "$sImportanceSQL DESC";
 964                                                         if (sizeof($aSearch['aFullNameAddress']))
 965                                                                 $aOrder[] = '(select count(*) from (select unnest(ARRAY['.join($aSearch['aFullNameAddress'],",").']) INTERSECT select unnest(nameaddress_vector))s) DESC';
 966
 967
 968                                                         if (sizeof($aTerms))
 969                                                         {
 970                                                                 $sSQL = "select place_id";
 971                                                                 $sSQL .= " from search_name";
 972                                                                 $sSQL .= " where ".join(' and ',$aTerms);
 973                                                                 $sSQL .= " order by ".join(', ',$aOrder);
 974                                                                 if ($aSearch['sHouseNumber'] || $aSearch['sClass'])
 975                                                                         $sSQL .= " limit 50";
 976                                                                 elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass'])
 977                                                                         $sSQL .= " limit 1";
 978                                                                 else
 979                                                                         $sSQL .= " limit ".$iLimit;
 980
 981                                                                 if (CONST_Debug) var_dump($sSQL);
 982                                                                 $iStartTime = time();
 983                                                                 $aViewBoxPlaceIDs = $oDB->getAll($sSQL);
 984                                                                 if (PEAR::IsError($aViewBoxPlaceIDs))
 985                                                                 {
 986                                                                         failInternalError("Could not get places for search terms.", $sSQL, $aViewBoxPlaceIDs);
 987                                                                 }
 988                                                                 if (time() - $iStartTime > 60) {
 989                                                                         file_put_contents(CONST_BasePath.'/log/long_queries.log', date('Y-m-d H:i:s', $iStartTime).' '.$sSQL."\n", FILE_APPEND);
 990                                                                 }
 991
 992 //var_dump($aViewBoxPlaceIDs);
 993                                                                 // Did we have an viewbox matches?
 994                                                                 $aPlaceIDs = array();
 995                                                                 $bViewBoxMatch = false;
 996                                                                 foreach($aViewBoxPlaceIDs as $aViewBoxRow)
 997                                                                 {
 998 //                                                                      if ($bViewBoxMatch == 1 && $aViewBoxRow['in_small'] == 'f') break;
 999 //                                                                      if ($bViewBoxMatch == 2 && $aViewBoxRow['in_large'] == 'f') break;
1000 //                                                                      if ($aViewBoxRow['in_small'] == 't') $bViewBoxMatch = 1;
1001 //                                                                      else if ($aViewBoxRow['in_large'] == 't') $bViewBoxMatch = 2;
1002                                                                         $aPlaceIDs[] = $aViewBoxRow['place_id'];
1003                                                                 }
1004                                                         }
1005 //var_Dump($aPlaceIDs);
1006 //exit;
1007
1008                                                         if ($aSearch['sHouseNumber'] && sizeof($aPlaceIDs))
1009                                                         {
1010                                                                 $aRoadPlaceIDs = $aPlaceIDs;
1011                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1012
1013                                                                 // Now they are indexed look for a house attached to a street we found
1014                                                                 $sHouseNumberRegex = '\\\\m'.str_replace(' ','[-,/ ]',$aSearch['sHouseNumber']).'\\\\M';
1015                                                                 $sSQL = "select place_id from placex where parent_place_id in (".$sPlaceIDs.") and housenumber ~* E'".$sHouseNumberRegex."'";
1016                                                                 if (sizeof($aExcludePlaceIDs))
1017                                                                 {
1018                                                                         $sSQL .= " and place_id not in (".join(',',$aExcludePlaceIDs).")";
1019                                                                 }
1020                                                                 $sSQL .= " limit $iLimit";
1021                                                                 if (CONST_Debug) var_dump($sSQL);
1022                                                                 $aPlaceIDs = $oDB->getCol($sSQL);
1023
1024                                                                 // If not try the aux fallback table
1025                                                                 if (!sizeof($aPlaceIDs))
1026                                                                 {
1027                                                                         $sSQL = "select place_id from location_property_aux where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1028                                                                         if (sizeof($aExcludePlaceIDs))
1029                                                                         {
1030                                                                                 $sSQL .= " and place_id not in (".join(',',$aExcludePlaceIDs).")";
1031                                                                         }
1032 //                                                                      $sSQL .= " limit $iLimit";
1033                                                                         if (CONST_Debug) var_dump($sSQL);
1034                                                                         $aPlaceIDs = $oDB->getCol($sSQL);
1035                                                                 }
1036
1037                                                                 if (!sizeof($aPlaceIDs))
1038                                                                 {
1039                                                                         $sSQL = "select place_id from location_property_tiger where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1040                                                                         if (sizeof($aExcludePlaceIDs))
1041                                                                         {
1042                                                                                 $sSQL .= " and place_id not in (".join(',',$aExcludePlaceIDs).")";
1043                                                                         }
1044 //                                                                      $sSQL .= " limit $iLimit";
1045                                                                         if (CONST_Debug) var_dump($sSQL);
1046                                                                         $aPlaceIDs = $oDB->getCol($sSQL);
1047                                                                 }
1048
1049                                                                 // Fallback to the road
1050                                                                 if (!sizeof($aPlaceIDs) && preg_match('/[0-9]+/', $aSearch['sHouseNumber']))
1051                                                                 {
1052                                                                         $aPlaceIDs = $aRoadPlaceIDs;
1053                                                                 }
1054
1055                                                         }
1056
1057                                                         if ($aSearch['sClass'] && sizeof($aPlaceIDs))
1058                                                         {
1059                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1060
1061                                                                 $aClassPlaceIDs = array();
1062
1063                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'name')
1064                                                                 {
1065                                                                         // If they were searching for a named class (i.e. 'Kings Head pub') then we might have an extra match
1066                                                                         $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1067                                                                         $sSQL .= " and linked_place_id is null";
1068                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1069                                                                         $sSQL .= " order by rank_search asc limit $iLimit";
1070                                                                         if (CONST_Debug) var_dump($sSQL);
1071                                                                         $aClassPlaceIDs = $oDB->getCol($sSQL);
1072                                                                 }
1073
1074                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') // & in
1075                                                                 {
1076                                                                         $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1077                                                                         $bCacheTable = $oDB->getOne($sSQL);
1078
1079                                                                         $sSQL = "select min(rank_search) from placex where place_id in ($sPlaceIDs)";
1080
1081                                                                         if (CONST_Debug) var_dump($sSQL);
1082                                                                         $iMaxRank = ((int)$oDB->getOne($sSQL));
1083
1084                                                                         // For state / country level searches the normal radius search doesn't work very well
1085                                                                         $sPlaceGeom = false;
1086                                                                         if ($iMaxRank < 9 && $bCacheTable)
1087                                                                         {
1088                                                                                 // Try and get a polygon to search in instead
1089                                                                                 $sSQL = "select geometry from placex where place_id in ($sPlaceIDs) and rank_search < $iMaxRank + 5 and st_geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon') order by rank_search asc limit 1";
1090                                                                                 if (CONST_Debug) var_dump($sSQL);
1091                                                                                 $sPlaceGeom = $oDB->getOne($sSQL);
1092                                                                         }
1093
1094                                                                         if ($sPlaceGeom)
1095                                                                         {
1096                                                                                 $sPlaceIDs = false;
1097                                                                         }
1098                                                                         else
1099                                                                         {
1100                                                                                 $iMaxRank += 5;
1101                                                                                 $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and rank_search < $iMaxRank";
1102                                                                                 if (CONST_Debug) var_dump($sSQL);
1103                                                                                 $aPlaceIDs = $oDB->getCol($sSQL);
1104                                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1105                                                                         }
1106
1107                                                                         if ($sPlaceIDs || $sPlaceGeom)
1108                                                                         {
1109
1110                                                                         $fRange = 0.01;
1111                                                                         if ($bCacheTable)
1112                                                                         {
1113                                                                                 // More efficient - can make the range bigger
1114                                                                                 $fRange = 0.05;
1115
1116                                                                                 $sOrderBySQL = '';
1117                                                                                 if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.centroid)";
1118                                                                                 else if ($sPlaceIDs) $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
1119                                                                                 else if ($sPlaceGeom) $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
1120
1121                                                                                 $sSQL = "select distinct l.place_id".($sOrderBySQL?','.$sOrderBySQL:'')." from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." as l";
1122                                                                                 if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
1123                                                                                 if ($sPlaceIDs)
1124                                                                                 {
1125                                                                                         $sSQL .= ",placex as f where ";
1126                                                                                         $sSQL .= "f.place_id in ($sPlaceIDs) and ST_DWithin(l.centroid, f.centroid, $fRange) ";
1127                                                                                 }
1128                                                                                 if ($sPlaceGeom)
1129                                                                                 {
1130                                                                                         $sSQL .= " where ";
1131                                                                                         $sSQL .= "ST_Contains('".$sPlaceGeom."', l.centroid) ";
1132                                                                                 }
1133                                                                                 if (sizeof($aExcludePlaceIDs))
1134                                                                                 {
1135                                                                                         $sSQL .= " and l.place_id not in (".join(',',$aExcludePlaceIDs).")";
1136                                                                                 }
1137                                                                                 if ($sCountryCodesSQL) $sSQL .= " and lp.calculated_country_code in ($sCountryCodesSQL)";
1138                                                                                 if ($sOrderBySQL) $sSQL .= "order by ".$sOrderBySQL." asc";
1139                                                                                 if ($iOffset) $sSQL .= " offset $iOffset";
1140                                                                                 $sSQL .= " limit $iLimit";
1141                                                                                 if (CONST_Debug) var_dump($sSQL);
1142                                                                                 $aClassPlaceIDs = array_merge($aClassPlaceIDs, $oDB->getCol($sSQL));
1143                                                                         }
1144                                                                         else
1145                                                                         {
1146                                                                                 if (isset($aSearch['fRadius']) && $aSearch['fRadius']) $fRange = $aSearch['fRadius'];
1147
1148                                                                                 $sOrderBySQL = '';
1149                                                                                 if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.geometry)";
1150                                                                                 else $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
1151
1152                                                                                 $sSQL = "select distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'')." from placex as l,placex as f where ";
1153                                                                                 $sSQL .= "f.place_id in ( $sPlaceIDs) and ST_DWithin(l.geometry, f.centroid, $fRange) ";
1154                                                                                 $sSQL .= "and l.class='".$aSearch['sClass']."' and l.type='".$aSearch['sType']."' ";
1155                                                                                 if (sizeof($aExcludePlaceIDs))
1156                                                                                 {
1157                                                                                         $sSQL .= " and l.place_id not in (".join(',',$aExcludePlaceIDs).")";
1158                                                                                 }
1159                                                                                 if ($sCountryCodesSQL) $sSQL .= " and l.calculated_country_code in ($sCountryCodesSQL)";
1160                                                                                 if ($sOrderBy) $sSQL .= "order by ".$OrderBysSQL." asc";
1161                                                                                 if ($iOffset) $sSQL .= " offset $iOffset";
1162                                                                                 $sSQL .= " limit $iLimit";
1163                                                                                 if (CONST_Debug) var_dump($sSQL);
1164                                                                                 $aClassPlaceIDs = array_merge($aClassPlaceIDs, $oDB->getCol($sSQL));
1165                                                                         }
1166                                                                         }
1167                                                                 }
1168
1169                                                                 $aPlaceIDs = $aClassPlaceIDs;
1170
1171                                                         }
1172
1173                                                 }
1174
1175                                                 if (PEAR::IsError($aPlaceIDs))
1176                                                 {
1177                                                         failInternalError("Could not get place IDs from tokens." ,$sSQL, $aPlaceIDs);
1178                                                 }
1179
1180                                                 if (CONST_Debug) { echo "<br><b>Place IDs:</b> "; var_Dump($aPlaceIDs); }
1181
1182                                                 foreach($aPlaceIDs as $iPlaceID)
1183                                                 {
1184                                                         $aResultPlaceIDs[$iPlaceID] = $iPlaceID;
1185                                                 }
1186                                                 if ($iQueryLoop > 20) break;
1187                                         }
1188
1189                                         //exit;
1190                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) break;
1191                                         if ($iGroupLoop > 4) break;
1192                                         if ($iQueryLoop > 30) break;
1193                                 }
1194
1195                                 // Did we find anything?
1196                                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs))
1197                                 {
1198 //var_Dump($aResultPlaceIDs);exit;
1199                                         // Get the details for display (is this a redundant extra step?)
1200                                         $sPlaceIDs = join(',',$aResultPlaceIDs);
1201                                         $sOrderSQL = 'CASE ';
1202                                         foreach(array_keys($aResultPlaceIDs) as $iOrder => $iPlaceID)
1203                                         {
1204                                                 $sOrderSQL .= 'when min(place_id) = '.$iPlaceID.' then '.$iOrder.' ';
1205                                         }
1206                                         $sOrderSQL .= ' ELSE 10000000 END';
1207                                         $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,";
1208                                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
1209                                         $sSQL .= "get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
1210                                         $sSQL .= "get_name_by_language(name, ARRAY['ref']) as ref,";
1211                                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
1212 //                                      $sSQL .= $sOrderSQL." as porder, ";
1213                                         $sSQL .= "coalesce(importance,0.75-(rank_search::float/40)) as importance, ";
1214                                         $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, ";
1215                                         $sSQL .= "(extratags->'place') as extra_place ";
1216                                         $sSQL .= "from placex where place_id in ($sPlaceIDs) ";
1217                                         $sSQL .= "and (placex.rank_address between $iMinAddressRank and $iMaxAddressRank ";
1218                                         if (14 >= $iMinAddressRank && 14 <= $iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
1219                                         $sSQL .= ") ";
1220                                         if ($sAllowedTypesSQLList) $sSQL .= "and placex.class in $sAllowedTypesSQLList ";
1221                                         $sSQL .= "and linked_place_id is null ";
1222                                         $sSQL .= "group by osm_type,osm_id,class,type,admin_level,rank_search,rank_address,calculated_country_code,importance";
1223                                         if (!$bDeDupe) $sSQL .= ",place_id";
1224                                         $sSQL .= ",langaddress ";
1225                                         $sSQL .= ",placename ";
1226                                         $sSQL .= ",ref ";
1227                                         $sSQL .= ",extratags->'place' ";
1228                                         $sSQL .= " union ";
1229                                         $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,";
1230                                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
1231                                         $sSQL .= "null as placename,";
1232                                         $sSQL .= "null as ref,";
1233                                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
1234 //                                      $sSQL .= $sOrderSQL." as porder, ";
1235                                         $sSQL .= "-0.15 as importance, ";
1236                                         $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, ";
1237                                         $sSQL .= "null as extra_place ";
1238                                         $sSQL .= "from location_property_tiger where place_id in ($sPlaceIDs) ";
1239                                         $sSQL .= "and 30 between $iMinAddressRank and $iMaxAddressRank ";
1240                                         $sSQL .= "group by place_id";
1241                                         if (!$bDeDupe) $sSQL .= ",place_id";
1242                                         $sSQL .= " union ";
1243                                         $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,";
1244                                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
1245                                         $sSQL .= "null as placename,";
1246                                         $sSQL .= "null as ref,";
1247                                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
1248 //                                      $sSQL .= $sOrderSQL." as porder, ";
1249                                         $sSQL .= "-0.10 as importance, ";
1250                                         $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, ";
1251                                         $sSQL .= "null as extra_place ";
1252                                         $sSQL .= "from location_property_aux where place_id in ($sPlaceIDs) ";
1253                                         $sSQL .= "and 30 between $iMinAddressRank and $iMaxAddressRank ";
1254                                         $sSQL .= "group by place_id";
1255                                         if (!$bDeDupe) $sSQL .= ",place_id";
1256                                         $sSQL .= ",get_address_by_language(place_id, $sLanguagePrefArraySQL) ";
1257                                         $sSQL .= "order by importance desc";
1258 //                                      $sSQL .= "order by rank_search,rank_address,porder asc";
1259                                         if (CONST_Debug) { echo "<hr>"; var_dump($sSQL); }
1260                                         $aSearchResults = $oDB->getAll($sSQL);
1261 //var_dump($sSQL,$aSearchResults);exit;
1262
1263                                         if (PEAR::IsError($aSearchResults))
1264                                         {
1265                                                 failInternalError("Could not get details for place.", $sSQL, $aSearchResults);
1266                                         }
1267                                 }
1268                         } // end if ($sQuery)
1269                         else
1270                         {
1271                                 if (isset($_GET['nearlat']) && trim($_GET['nearlat'])!=='' && isset($_GET['nearlon']) && trim($_GET['nearlon']) !== '')
1272                                 {
1273                                         $iPlaceID = geocodeReverse($_GET['nearlat'], $_GET['nearlon']);
1274                                         $aResultPlaceIDs = array($iPlaceID);
1275
1276                                         // TODO: this needs refactoring!
1277
1278                                         // Get the details for display (is this a redundant extra step?)
1279                                         $sPlaceIDs = join(',',$aResultPlaceIDs);
1280                                         $sOrderSQL = 'CASE ';
1281                                         foreach(array_keys($aResultPlaceIDs) as $iOrder => $iPlaceID)
1282                                         {
1283                                                 $sOrderSQL .= 'when min(place_id) = '.$iPlaceID.' then '.$iOrder.' ';
1284                                         }
1285                                         $sOrderSQL .= ' ELSE 10000000 END';
1286                                         $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,";
1287                                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
1288                                         $sSQL .= "get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
1289                                         $sSQL .= "get_name_by_language(name, ARRAY['ref']) as ref,";
1290                                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
1291 //                                      $sSQL .= $sOrderSQL." as porder, ";
1292                                         $sSQL .= "coalesce(importance,0.75-(rank_search::float/40)) as importance, ";
1293                                         $sSQL .= "(extratags->'place') as extra_place ";
1294                                         $sSQL .= "from placex where place_id in ($sPlaceIDs) ";
1295                                         $sSQL .= "and (placex.rank_address between $iMinAddressRank and $iMaxAddressRank ";
1296                                         if (14 >= $iMinAddressRank && 14 <= $iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
1297                                         $sSQL .= ") ";
1298                                         $sSQL .= "group by osm_type,osm_id,class,type,admin_level,rank_search,rank_address,calculated_country_code,importance";
1299                                         if (!$bDeDupe) $sSQL .= ",place_id";
1300                                         $sSQL .= ",get_address_by_language(place_id, $sLanguagePrefArraySQL) ";
1301                                         $sSQL .= ",get_name_by_language(name, $sLanguagePrefArraySQL) ";
1302                                         $sSQL .= ",get_name_by_language(name, ARRAY['ref']) ";
1303                                         $sSQL .= ",extratags->'place' ";
1304                                         $sSQL .= " union ";
1305                                         $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,";
1306                                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
1307                                         $sSQL .= "null as placename,";
1308                                         $sSQL .= "null as ref,";
1309                                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
1310 //                                      $sSQL .= $sOrderSQL." as porder, ";
1311                                         $sSQL .= "-0.15 as importance, ";
1312                                         $sSQL .= "null as extra_place ";
1313                                         $sSQL .= "from location_property_tiger where place_id in ($sPlaceIDs) ";
1314                                         $sSQL .= "and 30 between $iMinAddressRank and $iMaxAddressRank ";
1315                                         $sSQL .= "group by place_id";
1316                                         if (!$bDeDupe) $sSQL .= ",place_id";
1317                                         $sSQL .= " union ";
1318                                         $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,";
1319                                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
1320                                         $sSQL .= "null as placename,";
1321                                         $sSQL .= "null as ref,";
1322                                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
1323 //                                      $sSQL .= $sOrderSQL." as porder, ";
1324                                         $sSQL .= "-0.10 as importance, ";
1325                                         $sSQL .= "null as extra_place ";
1326                                         $sSQL .= "from location_property_aux where place_id in ($sPlaceIDs) ";
1327                                         $sSQL .= "and 30 between $iMinAddressRank and $iMaxAddressRank ";
1328                                         $sSQL .= "group by place_id";
1329                                         if (!$bDeDupe) $sSQL .= ",place_id";
1330                                         $sSQL .= ",get_address_by_language(place_id, $sLanguagePrefArraySQL) ";
1331                                         $sSQL .= "order by importance desc";
1332 //                                      $sSQL .= "order by rank_search,rank_address,porder asc";
1333                                         if (CONST_Debug) { echo "<hr>", var_dump($sSQL); }
1334                                         $aSearchResults = $oDB->getAll($sSQL);
1335 //var_dump($sSQL,$aSearchResults);exit;
1336
1337                                         if (PEAR::IsError($aSearchResults))
1338                                         {
1339                         failInternalError("Could not get details for place (near).", $sSQL, $aSearchResults);
1340                                         }
1341                                 }
1342                         }
1343                 }
1344
1345         $sSearchResult = '';
1346         if (!sizeof($aSearchResults) && isset($_GET['q']) && $_GET['q'])
1347         {
1348                 $sSearchResult = 'No Results Found';
1349         }
1350 //var_Dump($aSearchResults);
1351 //exit;
1352         $aClassType = getClassTypesWithImportance();
1353         $aRecheckWords = preg_split('/\b/u',$sQuery);
1354         foreach($aRecheckWords as $i => $sWord)
1355         {
1356                 if (!$sWord) unset($aRecheckWords[$i]);
1357         }
1358         foreach($aSearchResults as $iResNum => $aResult)
1359         {
1360                 if (CONST_Search_AreaPolygons)
1361                 {
1362                         // Get the bounding box and outline polygon
1363                         $sSQL = "select place_id,numfeatures,area,outline,";
1364                         $sSQL .= "ST_Y(ST_PointN(ST_ExteriorRing(Box2D(outline)),4)) as minlat,ST_Y(ST_PointN(ST_ExteriorRing(Box2D(outline)),2)) as maxlat,";
1365                         $sSQL .= "ST_X(ST_PointN(ST_ExteriorRing(Box2D(outline)),1)) as minlon,ST_X(ST_PointN(ST_ExteriorRing(Box2D(outline)),3)) as maxlon,";
1366                         $sSQL .= "ST_AsText(outline) as outlinestring from get_place_boundingbox_quick(".$aResult['place_id'].")";
1367
1368                         $sSQL = "select place_id,0 as numfeatures,st_area(geometry) as area,";
1369                         $sSQL .= "ST_Y(centroid) as centrelat,ST_X(centroid) as centrelon,";
1370                         $sSQL .= "ST_Y(ST_PointN(ST_ExteriorRing(Box2D(geometry)),4)) as minlat,ST_Y(ST_PointN(ST_ExteriorRing(Box2D(geometry)),2)) as maxlat,";
1371                         $sSQL .= "ST_X(ST_PointN(ST_ExteriorRing(Box2D(geometry)),1)) as minlon,ST_X(ST_PointN(ST_ExteriorRing(Box2D(geometry)),3)) as maxlon";
1372                         if ($bAsGeoJSON) $sSQL .= ",ST_AsGeoJSON(geometry) as asgeojson";
1373                         if ($bAsKML) $sSQL .= ",ST_AsKML(geometry) as askml";
1374                         if ($bAsSVG) $sSQL .= ",ST_AsSVG(geometry) as assvg";
1375                         if ($bAsText || $bShowPolygons) $sSQL .= ",ST_AsText(geometry) as astext";
1376                         $sSQL .= " from placex where place_id = ".$aResult['place_id'].' and st_geometrytype(Box2D(geometry)) = \'ST_Polygon\'';
1377                         $aPointPolygon = $oDB->getRow($sSQL);
1378                         if (PEAR::IsError($aPointPolygon))
1379                         {
1380                                 failInternalError("Could not get outline.", $sSQL, $aPointPolygon);
1381                         }
1382                         if ($aPointPolygon['place_id'])
1383                         {
1384                                 if ($bAsGeoJSON) $aResult['asgeojson'] = $aPointPolygon['asgeojson'];
1385                                 if ($bAsKML) $aResult['askml'] = $aPointPolygon['askml'];
1386                                 if ($bAsSVG) $aResult['assvg'] = $aPointPolygon['assvg'];
1387                                 if ($bAsText) $aResult['astext'] = $aPointPolygon['astext'];
1388
1389                                 if ($aPointPolygon['centrelon'] !== null && $aPointPolygon['centrelat'] !== null ) {
1390                                         $aResult['lat'] = $aPointPolygon['centrelat'];
1391                                         $aResult['lon'] = $aPointPolygon['centrelon'];
1392                                 }
1393                                 if ($bShowPolygons)
1394                                 {
1395                                         // Translate geometary string to point array
1396                                         if (preg_match('#POLYGON\\(\\(([- 0-9.,]+)#',$aPointPolygon['astext'],$aMatch))
1397                                         {
1398                                                 preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/',$aMatch[1],$aPolyPoints,PREG_SET_ORDER);
1399                                         }
1400                                         elseif (preg_match('#MULTIPOLYGON\\(\\(\\(([- 0-9.,]+)#',$aPointPolygon['astext'],$aMatch))
1401                                         {
1402                                                 preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/',$aMatch[1],$aPolyPoints,PREG_SET_ORDER);
1403                                         }
1404                                         elseif (preg_match('#POINT\\((-?[0-9.]+) (-?[0-9.]+)\\)#',$aPointPolygon['astext'],$aMatch))
1405                                         {
1406                                                 $fRadius = 0.01;
1407                                                 $iSteps = ($fRadius * 40000)^2;
1408                                                 $fStepSize = (2*pi())/$iSteps;
1409                                                 $aPolyPoints = array();
1410                                                 for($f = 0; $f < 2*pi(); $f += $fStepSize)
1411                                                 {
1412                                                         $aPolyPoints[] = array('',$aMatch[1]+($fRadius*sin($f)),$aMatch[2]+($fRadius*cos($f)));
1413                                                 }
1414                                                 $aPointPolygon['minlat'] = $aPointPolygon['minlat'] - $fRadius;
1415                                                 $aPointPolygon['maxlat'] = $aPointPolygon['maxlat'] + $fRadius;
1416                                                 $aPointPolygon['minlon'] = $aPointPolygon['minlon'] - $fRadius;
1417                                                 $aPointPolygon['maxlon'] = $aPointPolygon['maxlon'] + $fRadius;
1418                                         }
1419                                 }
1420
1421                                 // Output data suitable for display (points and a bounding box)
1422                                 if ($bShowPolygons && isset($aPolyPoints))
1423                                 {
1424                                         $aResult['aPolyPoints'] = array();
1425                                         foreach($aPolyPoints as $aPoint)
1426                                         {
1427                                                 $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1428                                         }
1429                                 }
1430                                 $aResult['aBoundingBox'] = array($aPointPolygon['minlat'],$aPointPolygon['maxlat'],$aPointPolygon['minlon'],$aPointPolygon['maxlon']);
1431                         }
1432                 }
1433
1434                 if ($aResult['extra_place'] == 'city')
1435                 {
1436                         $aResult['class'] = 'place';
1437                         $aResult['type'] = 'city';
1438                         $aResult['rank_search'] = 16;
1439                 }
1440
1441                 if (!isset($aResult['aBoundingBox']))
1442                 {
1443                         // Default
1444                         $fDiameter = 0.0001;
1445
1446                         if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1447                                         && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1448                         {
1449                                 $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defzoom'];
1450                         }
1451                         elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1452                                         && $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1453                         {
1454                                 $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'];
1455                         }
1456                         $fRadius = $fDiameter / 2;
1457
1458                         $iSteps = max(8,min(100,$fRadius * 3.14 * 100000));
1459                         $fStepSize = (2*pi())/$iSteps;
1460                         $aPolyPoints = array();
1461                         for($f = 0; $f < 2*pi(); $f += $fStepSize)
1462                         {
1463                                 $aPolyPoints[] = array('',$aResult['lon']+($fRadius*sin($f)),$aResult['lat']+($fRadius*cos($f)));
1464                         }
1465                         $aPointPolygon['minlat'] = $aResult['lat'] - $fRadius;
1466                         $aPointPolygon['maxlat'] = $aResult['lat'] + $fRadius;
1467                         $aPointPolygon['minlon'] = $aResult['lon'] - $fRadius;
1468                         $aPointPolygon['maxlon'] = $aResult['lon'] + $fRadius;
1469
1470                         // Output data suitable for display (points and a bounding box)
1471                         if ($bShowPolygons)
1472                         {
1473                                 $aResult['aPolyPoints'] = array();
1474                                 foreach($aPolyPoints as $aPoint)
1475                                 {
1476                                         $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1477                                 }
1478                         }
1479                         $aResult['aBoundingBox'] = array($aPointPolygon['minlat'],$aPointPolygon['maxlat'],$aPointPolygon['minlon'],$aPointPolygon['maxlon']);
1480                 }
1481
1482                 // Is there an icon set for this type of result?
1483                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1484                         && $aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1485                 {
1486                         $aResult['icon'] = CONST_Website_BaseURL.'images/mapicons/'.$aClassType[$aResult['class'].':'.$aResult['type']]['icon'].'.p.20.png';
1487                 }
1488
1489                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1490                         && $aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1491                 {
1492                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type']]['label'];
1493                 }
1494
1495                 if ($bShowAddressDetails)
1496                 {
1497                         $aResult['address'] = getAddressDetails($oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code']);
1498                         if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city']))
1499                         {
1500                                 $aResult['address'] = array_merge(array('city' => array_shift(array_values($aResult['address']))), $aResult['address']);
1501                         }
1502
1503 //var_dump($aResult['address']);
1504 //exit;
1505                 }
1506
1507                 // Adjust importance for the number of exact string matches in the result
1508                 $aResult['importance'] = max(0.001,$aResult['importance']);
1509                 $iCountWords = 0;
1510                 $sAddress = $aResult['langaddress'];
1511                 foreach($aRecheckWords as $i => $sWord)
1512                 {
1513                         if (stripos($sAddress, $sWord)!==false) $iCountWords++;
1514                 }
1515
1516                 $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
1517
1518 //if (CONST_Debug) var_dump($aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']);
1519 /*
1520                 if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['importance'])
1521                         && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['importance'])
1522                 {
1523                         $aResult['importance'] = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['importance'];
1524                 }
1525                 elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1526                         && $aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1527                 {
1528                         $aResult['importance'] = $aClassType[$aResult['class'].':'.$aResult['type']]['importance'];
1529                 }
1530                 else
1531                 {
1532                         $aResult['importance'] = 1000000000000000;
1533                 }
1534 */
1535                 $aResult['name'] = $aResult['langaddress'];
1536                 $aResult['foundorder'] = -$aResult['addressimportance'];
1537                 $aSearchResults[$iResNum] = $aResult;
1538         }
1539         uasort($aSearchResults, 'byImportance');
1540
1541         $aOSMIDDone = array();
1542         $aClassTypeNameDone = array();
1543         $aToFilter = $aSearchResults;
1544         $aSearchResults = array();
1545
1546         $bFirst = true;
1547         foreach($aToFilter as $iResNum => $aResult)
1548         {
1549                 if ($aResult['type'] == 'adminitrative') $aResult['type'] = 'administrative';
1550                 $aExcludePlaceIDs[$aResult['place_id']] = $aResult['place_id'];
1551                 if ($bFirst)
1552                 {
1553                         $fLat = $aResult['lat'];
1554                         $fLon = $aResult['lon'];
1555                         if (isset($aResult['zoom'])) $iZoom = $aResult['zoom'];
1556                         $bFirst = false;
1557                 }
1558                 if (!$bDeDupe || (!isset($aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']])
1559                         && !isset($aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']])))
1560                 {
1561                         $aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']] = true;
1562                         $aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']] = true;
1563                         $aSearchResults[] = $aResult;
1564                 }
1565
1566                 // Absolute limit on number of results
1567                 if (sizeof($aSearchResults) >= $iFinalLimit) break;
1568         }
1569
1570         $sDataDate = $oDB->getOne("select TO_CHAR(lastimportdate - '2 minutes'::interval,'YYYY/MM/DD HH24:MI')||' GMT' from import_status limit 1");
1571
1572         if (isset($_GET['nearlat']) && isset($_GET['nearlon']))
1573         {
1574                 $sQuery .= ' ['.$_GET['nearlat'].','.$_GET['nearlon'].']';
1575         }
1576
1577         if ($sQuery)
1578         {
1579                 logEnd($oDB, $hLog, sizeof($aToFilter));
1580         }
1581         $sMoreURL = CONST_Website_BaseURL.'search?format='.urlencode($sOutputFormat).'&exclude_place_ids='.join(',',$aExcludePlaceIDs);
1582         if (isset($_SERVER["HTTP_ACCEPT_LANGUAGE"])) $sMoreURL .= '&accept-language='.$_SERVER["HTTP_ACCEPT_LANGUAGE"];
1583         if ($bShowPolygons) $sMoreURL .= '&polygon=1';
1584         if ($bShowAddressDetails) $sMoreURL .= '&addressdetails=1';
1585         if (isset($_GET['viewbox']) && $_GET['viewbox']) $sMoreURL .= '&viewbox='.urlencode($_GET['viewbox']);
1586         if (isset($_GET['nearlat']) && isset($_GET['nearlon'])) $sMoreURL .= '&nearlat='.(float)$_GET['nearlat'].'&nearlon='.(float)$_GET['nearlon'];
1587         if ($sSuggestion)
1588         {
1589                 $sSuggestionURL = $sMoreURL.'&q='.urlencode($sSuggestion);
1590         }
1591         $sMoreURL .= '&q='.urlencode($sQuery);
1592
1593         if (CONST_Debug) exit;
1594
1595         include(CONST_BasePath.'/lib/template/search-'.$sOutputFormat.'.php');