Use QuadTiling in GPS point queries.

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

diff --git a/app/controllers/api_controller.rb b/app/controllers/api_controller.rb
index f61c67d6e548c4ff438ad376aae820af4ef7768d..66b56ce931bb7fde90f7525e7c9fef46403c53dd 100644 (file)
--- a/app/controllers/api_controller.rb
+++ b/app/controllers/api_controller.rb
@@ -1,11 +1,8 @@
 class ApiController < ApplicationController
 
-  before_filter :authorize
+  session :off
   after_filter :compress_output
 
-  helper :user
-  model :user
-
   #COUNT is the number of map requests to allow before exiting and starting a new process
   @@count = COUNT
 
@@ -18,7 +15,6 @@ class ApiController < ApplicationController
   
   def trackpoints
     @@count+=1
-    response.headers["Content-Type"] = 'text/xml'
     #retrieve the page number
     page = params['page'].to_i
     unless page
@@ -67,13 +63,8 @@ class ApiController < ApplicationController
       return
     end
 
-    # integerise
-    min_lat = min_lat * 1000000
-    max_lat = max_lat * 1000000
-    min_lon = min_lon * 1000000
-    max_lon = max_lon * 1000000
     # get all the points
-    points = Tracepoint.find(:all, :conditions => ['gps_points.latitude > ? AND gps_points.longitude > ? AND gps_points.latitude < ? AND gps_points.longitude < ? AND ( public = 1 OR gpx_files.user_id = ? ) AND visible = 1', min_lat.to_i, min_lon.to_i, max_lat.to_i, max_lon.to_i, @user.id ], :select => "gps_points.*", :joins => "INNER JOIN gpx_files ON gpx_files.id = gpx_id", :offset => offset, :limit => TRACEPOINTS_PER_PAGE, :order => "timestamp DESC" )
+    points = Tracepoint.find_by_area(min_lat, min_lon, max_lat, max_lon, :select => "DISTINCT *", :offset => offset, :limit => TRACEPOINTS_PER_PAGE, :order => "timestamp DESC" )
 
     doc = XML::Document.new
     doc.encoding = 'UTF-8'
@@ -96,12 +87,12 @@ class ApiController < ApplicationController
 
     #exit when we have too many requests
     if @@count > MAX_COUNT
-      render :text => doc.to_s
+      render :text => doc.to_s, :content_type => "text/xml"
       @@count = COUNT
       exit!
     end
 
-    render :text => doc.to_s
+    render :text => doc.to_s, :content_type => "text/xml"
 
   end
 
@@ -109,7 +100,6 @@ class ApiController < ApplicationController
     GC.start
     @@count+=1
 
-    response.headers["Content-Type"] = 'text/xml'
     # Figure out the bbox
     bbox = params['bbox']
     unless bbox and bbox.count(',') == 3
@@ -146,16 +136,17 @@ class ApiController < ApplicationController
     end
 
     # get all the nodes
-    nodes = Node.find(:all, :conditions => ['latitude > ? AND longitude > ? AND latitude < ? AND longitude < ? AND visible = 1', min_lat, min_lon, max_lat, max_lon])
+    nodes = Node.find(:all, :conditions => ['latitude BETWEEN ? AND ? AND longitude BETWEEN ? AND ? AND visible = 1', min_lat, max_lat, min_lon, max_lon])
 
     node_ids = nodes.collect {|node| node.id }
 
     if node_ids.length > 50_000
       report_error("You requested too many nodes (limit is 50,000). Either request a smaller area, or use planet.osm")
+      return
     end
 
     if node_ids.length == 0
-      render :text => "<osm version='0.4'></osm>"
+      render :text => "<osm version='0.4'></osm>", :content_type => "text/xml"
       return
     end
 
@@ -195,6 +186,8 @@ class ApiController < ApplicationController
 
       list_of_way_segments = list_of_way_segs.collect { |way_seg| way_seg.segment_id }
 
+       else
+         list_of_way_segments = Array.new
     end
 
     # - [0] in case some thing links to segment 0 which doesn't exist. Shouldn't actually ever happen but it does. FIXME: file a ticket for this
@@ -238,13 +231,30 @@ class ApiController < ApplicationController
       doc.root << way.to_xml_node(visible_segments, user_display_name_cache) if way.visible?
     end 
 
-    render :text => doc.to_s
+    render :text => doc.to_s, :content_type => "text/xml"
     
     #exit when we have too many requests
     if @@count > MAX_COUNT
       @@count = COUNT
+      
       exit!
     end
+  end
+
+  def capabilities
+    doc = OSM::API.new.get_xml_doc
+
+    api = XML::Node.new 'api'
+    version = XML::Node.new 'version'
+    version['minimum'] = '0.4';
+    version['maximum'] = '0.4';
+    api << version
+    area = XML::Node.new 'area'
+    area['maximum'] = MAX_REQUEST_AREA.to_s;
+    api << area
+    
+    doc.root << api
 
+    render :text => doc.to_s, :content_type => "text/xml"
   end
 end