From 0ff7a928e4359b177a43b7d2e8e1e0e468c2be53 Mon Sep 17 00:00:00 2001
From: Tom Hughes <tom@compton.nu>
Date: Sun, 6 Mar 2016 20:42:04 +0000
Subject: [PATCH] Fix query tool to get correct bounds for enclosing ways

The bounding box returned by overpass for geom output is only
the bounds for the clipped geometry, so fetch the geometry and
the bounding box separately and merge them client side.

Fixes #1156
---
 app/assets/javascripts/index/query.js | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/app/assets/javascripts/index/query.js b/app/assets/javascripts/index/query.js
index 333fce549..1e1dc2ed1 100644
--- a/app/assets/javascripts/index/query.js
+++ b/app/assets/javascripts/index/query.js
@@ -161,7 +161,7 @@ OSM.Query = function(map) {
     return geometry;
   }
 
-  function runQuery(latlng, radius, query, $section, compare) {
+  function runQuery(latlng, radius, query, $section, merge, compare) {
     var $ul = $section.find("ul");
 
     $ul.empty();
@@ -186,12 +186,24 @@ OSM.Query = function(map) {
 
         $section.find(".loader").stopTime("loading").hide();
 
-        if (compare) {
-          elements = results.elements.sort(compare);
+        if (merge) {
+          elements = results.elements.reduce(function (hash, element) {
+            var key = element.type + element.id;
+            hash[key] = $.extend({}, hash[key], element);
+            return hash;
+          }, {});
+
+          elements = Object.keys(elements).map(function (key) {
+            return elements[key];
+          });
         } else {
           elements = results.elements;
         }
 
+        if (compare) {
+          elements = elements.sort(compare);
+        }
+
         for (var i = 0; i < elements.length; i++) {
           var element = elements[i];
 
@@ -268,7 +280,7 @@ OSM.Query = function(map) {
       ways = "way(" + around + ")",
       relations = "relation(" + around + ")",
       nearby = "(" + nodes + ";" + ways + ");out tags geom(" + bbox + ");" + relations + ";out geom(" + bbox + ");",
-      isin = "is_in(" + lat + "," + lng + ")->.a;way(pivot.a);out tags geom(" + bbox + ");relation(pivot.a);out tags bb;";
+      isin = "is_in(" + lat + "," + lng + ")->.a;way(pivot.a);out tags bb;out ids geom(" + bbox + ");relation(pivot.a);out tags bb;";
 
     $("#sidebar_content .query-intro")
       .hide();
@@ -287,8 +299,8 @@ OSM.Query = function(map) {
       }
     }, 10);
 
-    runQuery(latlng, radius, nearby, $("#query-nearby"));
-    runQuery(latlng, radius, isin, $("#query-isin"), compareSize);
+    runQuery(latlng, radius, nearby, $("#query-nearby"), false);
+    runQuery(latlng, radius, isin, $("#query-isin"), true, compareSize);
   }
 
   function clickHandler(e) {
-- 
2.39.5