Add a "More results" link to Nominatim search results.

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

diff --git a/app/controllers/geocoder_controller.rb b/app/controllers/geocoder_controller.rb
index 9210fa8b5ebd31dee7f17b5aad09e0fa7ad2b068..e0f8823851e6221321cba6d6f4f087c4507090f4 100644 (file)
--- a/app/controllers/geocoder_controller.rb
+++ b/app/controllers/geocoder_controller.rb
@@ -228,26 +228,38 @@ class GeocoderController < ApplicationController
       viewbox = "&viewbox=#{minlon},#{maxlat},#{maxlon},#{minlat}"
     end
 
+    # get objects to excude
+    if params[:exclude]
+      exclude = "&exclude_place_ids=#{params[:exclude].join(',')}"
+    end
+
+    # ask nominatim
+    response = fetch_xml("http://nominatim.openstreetmap.org/search?format=xml&q=#{escape_query(query)}#{viewbox}#{exclude}&accept-language=#{request.user_preferred_languages.join(',')}")
+
     # create result array
     @results = Array.new
 
-    # ask nominatim
-    response = fetch_xml("http://nominatim.openstreetmap.org/search?format=xml&q=#{escape_query(query)}#{viewbox}&accept-language=#{request.user_preferred_languages.join(',')}")
+    # create parameter hash for "more results" link
+    @more_params = params.reverse_merge({ :exclude => [] })
+
+    # extract the results from the response
+    results =  response.elements["searchresults"]
 
     # parse the response
-    response.elements.each("searchresults/place") do |place|
+    results.elements.each("place") do |place|
       lat = place.attributes["lat"].to_s
       lon = place.attributes["lon"].to_s
       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(",")
-      prefix = t "geocoder.search_osm_nominatim.prefix_#{type}", :default => type.gsub("_", " ").capitalize
+      prefix = t "geocoder.search_osm_nominatim.prefix.#{klass}.#{type}", :default => type.gsub("_", " ").capitalize
 
       @results.push({:lat => lat, :lon => lon,
                      :min_lat => min_lat, :max_lat => max_lat,
                      :min_lon => min_lon, :max_lon => max_lon,
                      :prefix => prefix, :name => name})
+      @more_params[:exclude].push(place.attributes["place_id"].to_s)
     end
 
     render :action => "results"