correctly discard partially matching duplicates

[nominatim.git] / lib / Geocode.php

diff --git a/lib/Geocode.php b/lib/Geocode.php
index 684e7adb3d935c70eeea1d1a05ebfcc27dc2e84e..8b153d9a2d59a18497d25fd5a9c0c72c46e64085 100644 (file)
--- a/lib/Geocode.php
+++ b/lib/Geocode.php
@@ -17,8 +17,6 @@ class Geocode
 
     protected $aLangPrefOrder = array();
 
-    protected $bIncludeAddressDetails = false;
-
     protected $aExcludePlaceIDs = array();
     protected $bReverseInPlan = false;
 
@@ -87,7 +85,6 @@ class Geocode
             $aParams['exclude_place_ids'] = implode(',', $this->aExcludePlaceIDs);
         }
 
-        if ($this->bIncludeAddressDetails) $aParams['addressdetails'] = '1';
         if ($this->bBoundedSearch) $aParams['bounded'] = '1';
 
         if ($this->aCountryCodes) {
@@ -152,6 +149,10 @@ class Geocode
 
     private function viewboxImportanceFactor($fX, $fY)
     {
+        if (!$this->aViewBox) {
+            return 1;
+        }
+
         $fWidth = ($this->aViewBox[2] - $this->aViewBox[0])/2;
         $fHeight = ($this->aViewBox[3] - $this->aViewBox[1])/2;
 
@@ -183,9 +184,6 @@ class Geocode
 
     public function loadParamArray($oParams, $sForceGeometryType = null)
     {
-        $this->bIncludeAddressDetails
-         = $oParams->getBool('addressdetails', $this->bIncludeAddressDetails);
-
         $this->bBoundedSearch = $oParams->getBool('bounded', $this->bBoundedSearch);
 
         $this->setLimit($oParams->getInt('limit', $this->iFinalLimit));
@@ -247,14 +245,8 @@ class Geocode
         }
 
         $this->oPlaceLookup->loadParamArray($oParams, $sForceGeometryType);
-        $this->oPlaceLookup->setIncludeAddressDetails(false);
         $this->oPlaceLookup->setIncludePolygonAsPoints($oParams->getBool('polygon'));
-
-        if ($this->bIncludeAddressDetails
-            && $oParams->getString('format', '') == 'geocodejson'
-           ) {
-            $this->oPlaceLookup->setAddressAdminLevels(true);
-        }
+        $this->oPlaceLookup->setIncludeAddressDetails($oParams->getBool('addressdetails', false));
     }
 
     public function setQueryFromParams($oParams)
@@ -554,7 +546,6 @@ class Geocode
         // Do we have anything that looks like a lat/lon pair?
         $sQuery = $oCtx->setNearPointFromQuery($sQuery);
 
-        $aResults = array();
         if ($sQuery || $this->aStructuredQuery) {
             // Start with a single blank search
             $aSearches = array(new SearchDescription($oCtx));
@@ -754,8 +745,10 @@ class Geocode
             // Start the search process
             $iGroupLoop = 0;
             $iQueryLoop = 0;
+            $aNextResults = array();
             foreach ($aGroupedSearches as $iGroupedRank => $aSearches) {
                 $iGroupLoop++;
+                $aResults = $aNextResults;
                 foreach ($aSearches as $oSearch) {
                     $iQueryLoop++;
 
@@ -765,16 +758,42 @@ class Geocode
                         $oValidTokens->debugTokenByWordIdList()
                     );
 
-                    $aResults += $oSearch->query(
+                    $aNewResults = $oSearch->query(
                         $this->oDB,
                         $this->iMinAddressRank,
                         $this->iMaxAddressRank,
                         $this->iLimit
                     );
 
+                    // The same result may appear in different rounds, only
+                    // use the one with minimal rank.
+                    foreach ($aNewResults as $iPlace => $oRes) {
+                        if (!isset($aResults[$iPlace])
+                            || $aResults[$iPlace]->iResultRank > $oRes->iResultRank) {
+                            $aResults[$iPlace] = $oRes;
+                        }
+                    }
+
                     if ($iQueryLoop > 20) break;
                 }
 
+                if (!empty($aResults)) {
+                    $aSplitResults = Result::splitResults($aResults);
+                    Debug::printVar('Split results', $aSplitResults);
+                    if ($iGroupLoop <= 4 && empty($aSplitResults['tail'])
+                        && reset($aSplitResults['head'])->iResultRank > 0) {
+                        // Haven't found an exact match for the query yet.
+                        // Therefore add result from the next group level.
+                        $aNextResults = $aSplitResults['head'];
+                        foreach ($aNextResults as $oRes) {
+                            $oRes->iResultRank--;
+                        }
+                        $aResults = array();
+                    } else {
+                        $aResults = $aSplitResults['head'];
+                    }
+                }
+
                 if (!empty($aResults) && ($this->iMinAddressRank != 0 || $this->iMaxAddressRank != 30)) {
                     // Need to verify passes rank limits before dropping out of the loop (yuk!)
                     // reduces the number of place ids, like a filter
@@ -903,14 +922,6 @@ class Geocode
                     $aResult['label'] = $aClassInfo['label'];
                 }
             }
-            // if tag '&addressdetails=1' is set in query
-            if ($this->bIncludeAddressDetails) {
-                // getAddressDetails() is defined in lib.php and uses the SQL function get_addressdata in functions.sql
-                $aResult['address'] = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code'], $aResults[$aResult['place_id']]->iHouseNumber);
-                if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city'])) {
-                    $aResult['address'] = array_merge(array('city' => array_values($aResult['address'])[0]), $aResult['address']);
-                }
-            }
 
             $aResult['name'] = $aResult['langaddress'];
 
@@ -990,7 +1001,6 @@ class Geocode
                 'Query' => $this->sQuery,
                 'Structured query' => $this->aStructuredQuery,
                 'Name keys' => Debug::fmtArrayVals($this->aLangPrefOrder),
-                'Include address' => $this->bIncludeAddressDetails,
                 'Excluded place IDs' => Debug::fmtArrayVals($this->aExcludePlaceIDs),
                 'Try reversed query'=> $this->bReverseInPlan,
                 'Limit (for searches)' => $this->iLimit,