Eager load node and way details when processing a map call.

[rails.git] / app / controllers / api_controller.rb

diff --git a/app/controllers/api_controller.rb b/app/controllers/api_controller.rb
index 855e05888cddf1ee189b899482de5ac3e00fdd6f..ffc5852166f94b8bd8ec1b79cc2bdb0df8fb40f6 100644 (file)
--- a/app/controllers/api_controller.rb
+++ b/app/controllers/api_controller.rb
@@ -16,7 +16,6 @@ class ApiController < ApplicationController
   # Get an XML response containing a list of tracepoints that have been uploaded
   # within the specified bounding box, and in the specified page.
   def trackpoints
-    @@count+=1
     #retrieve the page number
     page = params['page'].to_i
     unless page
@@ -85,8 +84,6 @@ class ApiController < ApplicationController
   # fetched. All the nodes and ways that are referenced by those ways are then 
   # fetched. Finally all the xml is returned.
   def map
-    GC.start
-    @@count+=1
     # Figure out the bbox
     bbox = params['bbox']
 
@@ -110,7 +107,7 @@ class ApiController < ApplicationController
     end
 
     # FIXME um why is this area using a different order for the lat/lon from above???
-    @nodes = Node.find_by_area(min_lat, min_lon, max_lat, max_lon, :conditions => {:visible => true}, :limit => APP_CONFIG['max_number_of_nodes']+1)
+    @nodes = Node.find_by_area(min_lat, min_lon, max_lat, max_lon, :conditions => {:visible => true}, :include => :node_tags, :limit => APP_CONFIG['max_number_of_nodes']+1)
     # get all the nodes, by tag not yet working, waiting for change from NickB
     # need to be @nodes (instance var) so tests in /spec can be performed
     #@nodes = Node.search(bbox, params[:tag])
@@ -141,7 +138,7 @@ class ApiController < ApplicationController
     if node_ids.length > 0
       way_nodes = WayNode.find_all_by_node_id(node_ids)
       way_ids = way_nodes.collect { |way_node| way_node.id[0] }
-      ways = Way.find(way_ids)
+      ways = Way.find(way_ids, :include => [:way_nodes, :way_tags])
 
       list_of_way_nodes = ways.collect { |way|
         way.way_nodes.collect { |way_node| way_node.node_id }
@@ -156,15 +153,16 @@ class ApiController < ApplicationController
     nodes_to_fetch = (list_of_way_nodes.uniq - node_ids) - [0]
 
     if nodes_to_fetch.length > 0
-      @nodes += Node.find(nodes_to_fetch)
+      @nodes += Node.find(nodes_to_fetch, :include => :node_tags)
     end
 
     visible_nodes = {}
+    changeset_cache = {}
     user_display_name_cache = {}
 
     @nodes.each do |node|
       if node.visible?
-        doc.root << node.to_xml_node(user_display_name_cache)
+        doc.root << node.to_xml_node(changeset_cache, user_display_name_cache)
         visible_nodes[node.id] = node
       end
     end
@@ -172,7 +170,7 @@ class ApiController < ApplicationController
     way_ids = Array.new
     ways.each do |way|
       if way.visible?
-        doc.root << way.to_xml_node(visible_nodes, user_display_name_cache)
+        doc.root << way.to_xml_node(visible_nodes, changeset_cache, user_display_name_cache)
         way_ids << way.id
       end
     end 
@@ -190,7 +188,7 @@ class ApiController < ApplicationController
     # this "uniq" may be slightly inefficient; it may be better to first collect and output
     # all node-related relations, then find the *not yet covered* way-related ones etc.
     relations.uniq.each do |relation|
-      doc.root << relation.to_xml_node(user_display_name_cache)
+      doc.root << relation.to_xml_node(changeset_cache, user_display_name_cache)
     end
 
     response.headers["Content-Disposition"] = "attachment; filename=\"map.osm\""