X-Git-Url: https://git.openstreetmap.org/nominatim.git/blobdiff_plain/ce32d77a658afe254d792d3a9322a620dccddce9..1f2ee8ed77695c2e475508f961db5b37f8d83bd6:/lib/Geocode.php

diff --git a/lib/Geocode.php b/lib/Geocode.php
index eda692b0..c464aeed 100644
--- a/lib/Geocode.php
+++ b/lib/Geocode.php
@@ -20,6 +20,7 @@
 		protected $iLimit = 20;
 		protected $iFinalLimit = 10;
 		protected $iOffset = 0;
+		protected $bFallback = false;
 
 		protected $aCountryCodes = false;
 		protected $aNearPoint = false;
@@ -120,6 +121,11 @@
 			$this->iOffset = $iOffset;
 		}
 
+		function setFallback($bFallback = true)
+		{
+			$this->bFallback = (bool)$bFallback;
+		}
+
 		function setExcludedPlaceIDs($a)
 		{
 			// TODO: force to int
@@ -216,6 +222,11 @@
 		{
 			$this->sQuery = false;
 
+			// Reset
+			$this->iMinAddressRank = 0;
+			$this->iMaxAddressRank = 30;
+			$this->aAddressRankList = array();
+
 			$this->aStructuredQuery = array();
 			$this->sAllowedTypesSQLList = '';
 
@@ -235,7 +246,29 @@
 					$sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 				}
 			}
+		}
+
+		function fallbackStructuredQuery()
+		{
+			if (!$this->aStructuredQuery) return false;
+
+			$aParams = $this->aStructuredQuery;
+
+			if (sizeof($aParams) == 1) return false;
+
+			$aOrderToFallback = array('postalcode', 'street', 'city', 'county', 'state');
+
+			foreach($aOrderToFallback as $sType)
+			{
+				if (isset($aParams[$sType]))
+				{
+					unset($aParams[$sType]);
+					$this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
+					return true;
+				}
+			}
 
+			return false;
 		}
 
 		function getDetails($aPlaceIDs)
@@ -1423,6 +1456,14 @@
 			// No results? Done
 			if (!sizeof($aSearchResults))
 			{
+				if ($this->bFallback)
+				{
+					if ($this->fallbackStructuredQuery())
+					{
+						return $this->lookup();
+					}
+				}
+
 				return array();
 			}