Experimental support for reverse geocoding using the new geocoder.

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

diff --git a/app/controllers/geocoder_controller.rb b/app/controllers/geocoder_controller.rb
index 66c2ae41788387b6871e5618de3c5403ba68503d..f92e370c0c862a5d1918b2f04b26a770e2b9d5ea 100644 (file)
--- a/app/controllers/geocoder_controller.rb
+++ b/app/controllers/geocoder_controller.rb
@@ -223,7 +223,7 @@ class GeocoderController < ApplicationController
     @results = Array.new
 
     # ask OSM namefinder
-    response = fetch_xml("http://katie.openstreetmap.org/~twain/?format=xml&q=#{escape_query(query)}")
+    response = fetch_xml("http://katie.openstreetmap.org/~twain/?format=xml&polygon=true&q=#{escape_query(query)}")
 
     # parse the response
     response.elements.each("searchresults/place") do |place|
@@ -233,6 +233,7 @@ class GeocoderController < ApplicationController
       klass = place.attributes["class"].to_s
       type = place.attributes["type"].to_s
       name = place.attributes["display_name"].to_s
+      min_lat,max_lat,min_lon,max_lon = place.attributes["boundingbox"].to_s.split(",")
 
       if klass == "highway"
         prefix = t 'geocoder.search_osm_twain.prefix_highway', :type => type.capitalize
@@ -241,6 +242,8 @@ class GeocoderController < ApplicationController
       end
 
       @results.push({:lat => lat, :lon => lon, :zoom => zoom,
+                     :min_lat => min_lat, :max_lat => max_lat,
+                     :min_lon => min_lon, :max_lon => max_lon,
                      :prefix => prefix, :name => name})
     end
 
@@ -277,13 +280,14 @@ class GeocoderController < ApplicationController
     @error = "Error contacting ws.geonames.org: #{ex.to_s}"
     render :action => "error"
   end
-  
+
   def description
     @sources = Array.new
 
     @sources.push({ :name => "osm_namefinder", :types => "cities", :max => 2 })
     @sources.push({ :name => "osm_namefinder", :types => "towns", :max => 4 })
     @sources.push({ :name => "osm_namefinder", :types => "places", :max => 10 })
+    @sources.push({ :name => "osm_twain" }) if APP_CONFIG['twain_enabled']
     @sources.push({ :name => "geonames" })
 
     render :update do |page|
@@ -328,6 +332,31 @@ class GeocoderController < ApplicationController
     render :action => "error"
   end
 
+  def description_osm_twain
+    # get query parameters
+    lat = params[:lat]
+    lon = params[:lon]
+    zoom = params[:zoom]
+
+    # create result array
+    @results = Array.new
+
+    # ask OSM namefinder
+    response = fetch_xml("http://katie.openstreetmap.org/~twain/reverse.php?lat=#{lat}&lon=#{lon}&zoom=#{zoom}")
+
+    # parse the response
+    response.elements.each("reversegeocode") do |result|
+      description = result.get_text("result").to_s
+
+      @results.push({:prefix => "#{description}"})
+    end
+
+    render :action => "results"
+  rescue Exception => ex
+    @error = "Error contacting katie.openstreetmap.org: #{ex.to_s}"
+    render :action => "error"
+  end
+
   def description_geonames
     # get query parameters
     lat = params[:lat]