Allow for different formats to the getBugs call

This is a rudimentary initial version of a GPX and a rss
format for looking at bugs in an area.

app/controllers/map_bugs_controller.rb

@@ -30,25 +30,15 @@ class MapBugsController < ApplicationController
       return
     end
 
-	bugs = MapBug.find_by_area(min_lat, min_lon, max_lat, max_lon, :order => "last_changed DESC", :limit => 100, :conditions => "status != 'hidden'")
+	@bugs = MapBug.find_by_area(min_lat, min_lon, max_lat, max_lon, :order => "last_changed DESC", :limit => 100, :conditions => "status != 'hidden'")
 
-	resp = ""
-	
-	bugs.each do |bug|
-	  resp += "putAJAXMarker(" + bug.id.to_s + ", " + bug.lon.to_s + ", " + bug.lat.to_s;
-	  comment_no = 1
-	  bug.map_bug_comment.each do |comment|
-        resp += (comment_no == 1 ? ", '" : "<hr />")
-		resp += comment.comment if comment.comment
-		resp += " [ " 
-		resp += comment.commenter_name if comment.commenter_name
-		resp += " " + comment.date_created.to_s + " ]"
-		comment_no += 1
+	respond_to do |format|
+	  format.html {render :template => 'map_bugs/get_bugs.js', :content_type => "text/javascript"}
+	  format.rss {render :template => 'map_bugs/get_bugs.rss'}
+	  format.js
+	  format.xml {render :template => 'map_bugs/get_bugs.xml'}
+	  #format.gpx {render :text => "Rendering GPX"}
 	end
-	  resp += (comment_no == 1 ? "," : "', ") + (bug.status=="open"?"0":"1") + ");\n"
-	end
-
-	render :text => resp, :content_type => "text/javascript"
   end
 
   def add_bug
@@ -104,11 +94,13 @@ class MapBugsController < ApplicationController
   end
 
   def rss
-	##TODO: needs to be implemented
+	request.format = :rss
+	get_bugs
   end
 
   def gpx_bugs
-	##TODO: needs to be implemented
+	request.format = :xml
+	get_bugs
   end
 
   def add_comment(bug, comment) 

app/models/map_bug.rb

@@ -29,4 +29,20 @@ class MapBug < ActiveRecord::Base
 	self.save;
   end
 
+  def flatten_comment ( separator_char )
+	resp = ""
+	comment_no = 1
+	self.map_bug_comment.each do |comment|
+        resp += (comment_no == 1 ? "" : separator_char)
+		resp += comment.comment if comment.comment
+		resp += " [ " 
+		resp += comment.commenter_name if comment.commenter_name
+		resp += " " + comment.date_created.to_s + " ]"
+		comment_no += 1
+	end
+
+	return resp
+
+  end
+
 end

app/views/map_bugs/get_bugs.js.erb

@@ -0,0 +1,7 @@
+<% if @bugs.empty? %>
+
+<% else %>
+	<% @bugs.each do |bug| %> 
+putAJAXMarker(<%= bug.id.to_s %> , <%= bug.lon.to_s %> , <%= bug.lat.to_s %> , '<%= bug.flatten_comment("<hr />") %>', <%= (bug.status=="open"?"0":"1") %> );
+    <% end %>
+<% end %>

app/views/map_bugs/get_bugs.rss.builder

@@ -0,0 +1,33 @@
+xml.instruct!
+
+xml.rss("version" => "2.0", 
+        "xmlns:geo" => "http://www.w3.org/2003/01/geo/wgs84_pos#",
+        "xmlns:georss" => "http://www.georss.org/georss") do
+  xml.channel do
+    xml.title "OpenStreetBugs"
+    xml.description "A list of bugs, reported, commented on or closed in your area"
+    xml.link url_for(:controller => "site", :action => "index", :only_path => false)
+
+	for bug in @bugs
+      xml.item do
+		if bug.status == "closed"
+			xml.title "Closed bug"	
+		else if bug.map_bug_comment.length > 1
+			xml.title "Commented on bug"
+		else
+			xml.title "Created bug"
+		end	end
+        
+        xml.link url_for(:controller => "site", :action => "index", :only_path => false)
+        xml.description  bug.flatten_comment("|")
+		if (!bug.map_bug_comment.empty?)
+	        xml.author bug.map_bug_comment[-1].commenter_name
+		end
+        xml.pubDate bug.last_changed.to_s(:rfc822)
+          xml.geo :lat, bug.lat
+          xml.geo :long, bug.lon
+          xml.georss :point, "#{bug.lat} #{bug.lon}"
+      end
+	end
+  end
+end

app/views/map_bugs/get_bugs.xml.builder

@@ -0,0 +1,23 @@
+xml.instruct!
+
+
+xml.gpx("version" => "1.1", 
+        "xmlns:xsi" => "http://www.w3.org/2001/XMLSchema-instance",
+	    "xsi:schemaLocation" => "http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd") do
+
+	for bug in @bugs
+      xml.wpt("lon" => bug.lon, "lat" => bug.lat) do
+		xml.desc do
+			xml.cdata! bug.flatten_comment("<hr />")
+		end
+		xml.extension do
+			if bug.status = "open"
+				xml.closed "0"
+			else
+				xml.closed "1"
+			end
+			xml.id bug.id
+		end
+      end
+	end
+end