# After\_filter and partials **URL:** \ **Category:** Rails\ **Created:** [August 6, 2008, 1:24am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101 "2008-08-06T01:24:14Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![itkin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/22d042/32.png) [@itkin](https://www.ruby-forum.com/u/itkin)\ **Post date:** [August 6, 2008, 1:24am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101/1 "2008-08-06T01:24:14Z")
Hello ! I’d like to use a filter to add something like the following script to all views rendered by my application : The goal is to update a div with some flash content, systematically, without needing to write code in every view or method. I don’t know how to proceed with filters, how to access to the repsonse body and to change it… If anybody could help … thanks ---
**Author:** ![itkin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/22d042/32.png) [@itkin](https://www.ruby-forum.com/u/itkin)\ **Post date:** [August 6, 2008, 1:29am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101/2 "2008-08-06T01:29:29Z")
You dont need a filter, you need a layout [http://api.rubyonrails.org/classes/ActionController/Layout/ClassMethods.html](http://api.rubyonrails.org/classes/ActionController/Layout/ClassMethods.html) ---
**Author:** ![itkin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/22d042/32.png) [@itkin](https://www.ruby-forum.com/u/itkin)\ **Post date:** [August 6, 2008, 1:45am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101/3 "2008-08-06T01:45:07Z")
nico Itkin wrote: > Hello ! > > I’d like to use a filter to add something like the following script to > all views rendered by my application : > > The goal is to update a div with some flash content, systematically, > without needing to write code in every view or method. > > I don’t know how to proceed with filters, how to access to the repsonse > body and to change it… > > If anybody could help … > > thanks In the application controller, the following code : after\_filter :update\_notice def update\_notice response.body \<\< “” end render the expected code on the page : but this js code is not evaluate… ---
**Author:** ![itkin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/22d042/32.png) [@itkin](https://www.ruby-forum.com/u/itkin)\ **Post date:** [August 6, 2008, 1:47am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101/4 "2008-08-06T01:47:27Z")
Stefan B. wrote: > You dont need a filter, you need a layout > > [http://api.rubyonrails.org/classes/ActionController/Layout/ClassMethods.html](http://api.rubyonrails.org/classes/ActionController/Layout/ClassMethods.html) The application is ajax oriented so layouts are not refreshed on every action, i 'm looking for some generic tool ---
**Author:** ![itkin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/22d042/32.png) [@itkin](https://www.ruby-forum.com/u/itkin)\ **Post date:** [August 6, 2008, 2:07am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101/5 "2008-08-06T02:07:54Z")
Stefan B. wrote: > Oh, i see… Sorry > > You have to instruct prototype to evalulate the script tags of the xhr > response. afaik, by default, the response is only evaluated if the > mimetype is javascript. but I’m not sure so I suggest you to look it up > in the prototype api and the rails prototype helpers. > > Since rails javascript helpers generate > instead of you could try changing that > too. works when html is rendered but not js. I've to adapt the method depending on the mime type of the response, but i'm in the dark: i can't find any doc on this do you know any paper where the response object is described ? Nico ---
**Author:** ![itkin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/22d042/32.png) [@itkin](https://www.ruby-forum.com/u/itkin)\ **Post date:** [August 6, 2008, 1:57am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101/6 "2008-08-06T01:57:41Z")
Oh, i see… Sorry You have to instruct prototype to evalulate the script tags of the xhr response. afaik, by default, the response is only evaluated if the mimetype is javascript. but I’m not sure so I suggest you to look it up in the prototype api and the rails prototype helpers. Since rails javascript helpers generate instead of you could try changing that too. ---
**Author:** ![itkin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/22d042/32.png) [@itkin](https://www.ruby-forum.com/u/itkin)\ **Post date:** [August 6, 2008, 2:56am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101/7 "2008-08-06T02:56:04Z")
nico Itkin wrote: > Stefan B. wrote: > > > Oh, i see… Sorry > > > > You have to instruct prototype to evalulate the script tags of the xhr > > response. afaik, by default, the response is only evaluated if the > > mimetype is javascript. but I’m not sure so I suggest you to look it up > > in the prototype api and the rails prototype helpers. > > > > Since rails javascript helpers generate ” unless response.headers[‘Content-Type’] > > == ‘text/javascript’ > > end > > > > thank you stefan ! ---
**Author:** ![itkin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/22d042/32.png) [@itkin](https://www.ruby-forum.com/u/itkin)\ **Post date:** [August 6, 2008, 2:57am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101/8 "2008-08-06T02:57:47Z")
seems i was wrong. nice 🙂 ---
**Author:** ![itkin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/22d042/32.png) [@itkin](https://www.ruby-forum.com/u/itkin)\ **Post date:** [August 6, 2008, 2:57am UTC](https://www.ruby-forum.com/t/after-filter-and-partials/145101/9 "2008-08-06T02:57:01Z")
so you’re rendering an rjs template as response and want to add additional js code using a filter? Phew I don’t think that is possible without any code in the rjs.