add MiniFB.delete for DELETE requests to the graph API (also supports…

… batch delete).

lib/mini_fb.rb

@@ -610,6 +610,31 @@ def self.post(access_token, id, options={})
         return fetch(url, options)
 
     end
+
+    # Sends a DELETE request to the Facebook Graph API
+    # options:
+    #   - type: eg: feed, home, etc
+    #   - metadata: to include metadata in response. true/false
+    #   - params: Any additional parameters you would like to submit
+    def self.delete(access_token, ids, options={})
+        url = "#{graph_base}"
+        params = options[:params] || {}
+        if ids.is_a?(Array)
+          params["ids"] = ids.join(',')
+        else
+          url << "#{ids}"
+        end
+        url << "/#{options[:type]}" if options[:type]
+        options.delete(:type)
+        options.each do |key, value|
+            params[key] = "#{value}"
+        end
+        params["access_token"] = "#{(access_token)}"
+        options[:params] = params
+        options[:method] = :delete
+        return fetch(url, options)
+
+    end
 
     # Executes an FQL query
     def self.fql(access_token, fql_query, options={})
@@ -654,9 +679,16 @@ def self.rest(access_token, api_method, options={})
     def self.fetch(url, options={})
 
         begin
-            if options[:method] == :post
+            case options[:method]
+            when :post
                 @@log.debug 'url_post=' + url if @@logging
                 resp = RestClient.post url, options[:params]
+            when :delete
+                if options[:params] && options[:params].size > 0
+                    url += '?' + options[:params].map { |k, v|  CGI.escape(k.to_s) + '=' + CGI.escape(v.to_s) }.join('&')
+                end
+                @@log.debug 'url_delete=' + url if @@logging
+                resp = RestClient.delete url
             else
                 if options[:params] && options[:params].size > 0
                     url += '?' + options[:params].map { |k, v|  CGI.escape(k.to_s) + '=' + CGI.escape(v.to_s) }.join('&')