# TemplateError for second-level partial during AJAX update **URL:** \ **Category:** Rails\ **Created:** [June 16, 2009, 8:26am UTC](https://www.ruby-forum.com/t/templateerror-for-second-level-partial-during-ajax-update/170336 "2009-06-16T08:26:35Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![dezrtdude](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f4b2a3/32.png) [@dezrtdude](https://www.ruby-forum.com/u/dezrtdude)\ **Post date:** [June 16, 2009, 8:26am UTC](https://www.ruby-forum.com/t/templateerror-for-second-level-partial-during-ajax-update/170336/1 "2009-06-16T08:26:35Z")
Hi All, Could someone please explain to me why I’m getting an ActionView::TemplateError when I try to use AJAX to update the interface while using the following code: ```
<%building.controls.each do |control|%> <%=render :partial => "control", :locals => {:control => ``` control}%\> \<%end%\> I have the following structure: Site -\> Building -\> Control. Each loops through it’s collection of items and renders a partial for each. From Site to Building works just fine. However, going from Building on to Control throws the template error. It is noteworthy that Controls get added just fine, and if I refresh the page, all the code works – but for some reason when I try to do the AJAX thing, the partial (not the “rjs” file) throws an error. Any thoughts? My apologies if this is too vague. Best. ---
**Author:** ![dezrtdude](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f4b2a3/32.png) [@dezrtdude](https://www.ruby-forum.com/u/dezrtdude)\ **Post date:** [June 16, 2009, 8:34am UTC](https://www.ruby-forum.com/t/templateerror-for-second-level-partial-during-ajax-update/170336/2 "2009-06-16T08:34:50Z")
check the location of template . this may be cause . N A R E N ---
**Author:** ![dezrtdude](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f4b2a3/32.png) [@dezrtdude](https://www.ruby-forum.com/u/dezrtdude)\ **Post date:** [June 16, 2009, 10:10am UTC](https://www.ruby-forum.com/t/templateerror-for-second-level-partial-during-ajax-update/170336/3 "2009-06-16T10:10:46Z")
My apologies. Actually the error is that there is no method named ‘controls’. In fact, this is the full error: ActionView::TemplateError (undefined method `controls’ for #\) on line #21 of app/views/site\_manager/\_building.html.erb: 18: 19: 20: 21: \<%for control in building.controls%\> 22: \<%=render :partial =\> “control”, :locals =\> {:control =\> control}%\> 23: \<%end%\> 24: ``` app/views/site_manager/_building.html.erb:21 app/views/site_manager/add_control_to_building.rjs:1:in ``` `__instance_exec0' app/views/site_manager/add_control_to_building.rjs:1:in `\_run\_rjs\_app47views47site\_manager47add\_control\_to\_building46rjs’ app/controllers/site\_manager\_controller.rb:23:in `add\_control\_to\_building’ Rendered rescues/\_trace (56.4ms) Rendered rescues/\_request\_and\_response (1.5ms) Rendering rescues/layout (internal\_server\_error) On Jun 16, 2:33 am, Narendra sisodiya [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![dezrtdude](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f4b2a3/32.png) [@dezrtdude](https://www.ruby-forum.com/u/dezrtdude)\ **Post date:** [June 16, 2009, 11:30am UTC](https://www.ruby-forum.com/t/templateerror-for-second-level-partial-during-ajax-update/170336/4 "2009-06-16T11:30:43Z")
check for \<%for control in building.controls%\> and make sure controls is defined ~N A R E N ---
**Author:** ![dezrtdude](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f4b2a3/32.png) [@dezrtdude](https://www.ruby-forum.com/u/dezrtdude)\ **Post date:** [June 16, 2009, 3:44pm UTC](https://www.ruby-forum.com/t/templateerror-for-second-level-partial-during-ajax-update/170336/5 "2009-06-16T15:44:02Z")
Wow! Yeah, I was aware of what rails _thought_ was the issue, but I was also _sure_ I was in the right. Turns out I was wrong. I’d copied and pasted the “rjs” code into the new “rjs” file. When I did, I missed the partial name and left it as “building”, so it was passing a “control” object back to the “building” partial when it should have been passing it to the “control” partial. Thanks so much for letting me talk out loud! On Jun 16, 5:14 am, Narendra sisodiya [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![dezrtdude](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f4b2a3/32.png) [@dezrtdude](https://www.ruby-forum.com/u/dezrtdude)\ **Post date:** [June 16, 2009, 11:31am UTC](https://www.ruby-forum.com/t/templateerror-for-second-level-partial-during-ajax-update/170336/6 "2009-06-16T11:31:25Z")
You seem to have Control object itself stored in building variable and hence it does not have any controls method in it On Tue, Jun 16, 2009 at 1:39 PM, gberz3 [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > 21: \<%for control in building.controls%\> > `\_run\_rjs\_app47views47site\_manager47add\_control\_to\_building46rjs’ > > > check the location of template . this may be cause . > > > > > ActionView::TemplateError when I try to use AJAX to update the > > > loops through it’s collection of items and renders a partial for – - NAYAK