added case when for highways in subquery

[nominatim.git] / lib / PlaceLookup.php

diff --git a/lib/PlaceLookup.php b/lib/PlaceLookup.php
index ca7a48cf7931ab94b0b0ae12ebcedab93eb12d6e..270e2745f03a110142271dce8f3f3a6a95aa9049 100644 (file)
--- a/lib/PlaceLookup.php
+++ b/lib/PlaceLookup.php
@@ -555,8 +555,13 @@ class PlaceLookup
             if ($this->bIncludePolygonAsKML) $sSQL .= ',ST_AsKML(geometry) as askml';
             if ($this->bIncludePolygonAsSVG) $sSQL .= ',ST_AsSVG(geometry) as assvg';
             if ($this->bIncludePolygonAsText || $this->bIncludePolygonAsPoints) $sSQL .= ',ST_AsText(geometry) as astext';
             if ($this->bIncludePolygonAsKML) $sSQL .= ',ST_AsKML(geometry) as askml';
             if ($this->bIncludePolygonAsSVG) $sSQL .= ',ST_AsSVG(geometry) as assvg';
             if ($this->bIncludePolygonAsText || $this->bIncludePolygonAsPoints) $sSQL .= ',ST_AsText(geometry) as astext';

-            $sFrom = ' from (SELECT * , ST_ClosestPoint(geometry, ST_SetSRID(ST_Point('.$fLatReverse.','.$fLonReverse.'),4326)) AS closest_point';
-            $sFrom .= ' from placex where place_id = '.$iPlaceID.') as plx';
+            if ($fLonReverse != null && $fLatReverse != null) {
+                $sFrom = ' from (SELECT * , CASE WHEN (class = \'highway\') AND (ST_GeometryType(geometry) = \'ST_LineString\') THEN ';
+                $sFrom .=' ST_ClosestPoint(geometry, ST_SetSRID(ST_Point('.$fLatReverse.','.$fLonReverse.'),4326)) END AS closest_point';
+                $sFrom .= ' from placex where place_id = '.$iPlaceID.') as plx';
+            } else {
+                $sFrom = ' from placex where place_id = '.$iPlaceID;
+            }

             if ($this->fPolygonSimplificationThreshold > 0) {
                 $sSQL .= ' from (select place_id,centroid,ST_SimplifyPreserveTopology(geometry,'.$this->fPolygonSimplificationThreshold.') as geometry'.$sFrom.') as plx';
             } else {
             if ($this->fPolygonSimplificationThreshold > 0) {
                 $sSQL .= ' from (select place_id,centroid,ST_SimplifyPreserveTopology(geometry,'.$this->fPolygonSimplificationThreshold.') as geometry'.$sFrom.') as plx';
             } else {