\r
parts_element: () ->\r
r = []\r
- _this = this\r
- _.each @my_class().child_models(), (k) ->\r
- l = _this.element_items(k)\r
- r = r.concat(l)\r
+ _.each @my_class().child_models(), (k) =>\r
+ l = @element_items(k)\r
+ r = r.concat(l || [])\r
r\r
\r
zorderd_elements: () ->\r
res = []\r
- _.each @parts_element, (e) ->\r
+ _.each @parts_element(), (e) =>\r
res[e.get('z')-1] = e\r
res\r
\r
scenario_elements: () ->\r
res = []\r
- _.each @parts_element(), (e) ->\r
+ _.each @parts_element(), (e) =>\r
res[e.get('t')] = e\r
res\r
\r