fix cates and tags

app/controllers/default_widget_controller.rb

@@ -11,26 +11,32 @@ class DefaultWidgetController< OrbitWidgetController
   end
 
   def query_for_default_widget
+
     ori_class_name = @default_widget["query"].split('.')[0]
     result = nil
     result_objects = nil
-    params["tag_id"] = [] if params["tag_id"]=="[]"    
-    params["category_id"] = [] if params["category_id"]=="[]"
     
     if !params["tag_id"].blank?
       @tags = Tag.find(params["tag_id"]) rescue nil
       result_ids = nil
-      if params["category_id"].blank?
-        result_ids = @tags.collect{|tag| tag.send(ori_class_name.downcase.pluralize).entries.collect{|t| t.id}}.flatten
-      else
-        result_ids = @tags.collect{|tag| tag.send(ori_class_name.downcase.pluralize).where(:category_id.in=>params["category_id"]).available_for_lang(I18n.locale).can_display.collect{|t| t.id}}.flatten
+
+      result_ids = @tags.collect{|tag| tag.send(ori_class_name.downcase.pluralize).entries.collect{|t| t.id}}
+      if params["category_id"].blank? #has tag no cate
+        #nothing
+      else #has tag and cate
+        # result_ids = @tags.collect{|tag| tag.send(ori_class_name.downcase.pluralize).where(:#{get_category_field_name(ori_class_name)}.in=>params["category_id"]).available_for_lang(I18n.locale).can_display.collect{|t| t.id}}.flatten
+        result_ids << eval("#{ori_class_name}.where(:#{get_category_field_name(ori_class_name)}.in=>params['category_id']).entries.collect{|t| t.id}")
+        result_ids.flatten!
+
       end
       result = eval("#{ori_class_name}.where(:id=>result_ids)")
-    elsif params["category_id"].blank?
+    elsif params["category_id"].blank?  #no tag no cate
+
         result = eval(@default_widget["query"])
-      else
-        result = eval("#{ori_class_name}.where(:category_id.in=>params['category_id'])")
+      else #no tag has cate
+        result = eval("#{ori_class_name}.where(:#{get_category_field_name(ori_class_name)}.in=>params['category_id'])")
     end
+
     result.available_for_lang(I18n.locale).can_display
   end
 
@@ -72,4 +78,12 @@ class DefaultWidgetController< OrbitWidgetController
     end
   end
   
+  def get_category_field_name(ori_class_name)
+    ori_class_name = ori_class_name.constantize
+    ori_class_name.fields.each_key do |key|
+      return key if key.include?('category_id')
+    end
+    nil
+  end
+
 end