RJS and after_filter

rubyonrails-talk
1

Hello all,

I need to call page.replace_html in every Ajax call. Is there a way to do this in some after_filter ?

I tried a render :update do |page| in after_filter, but it says that can only render once per action....

Thanks in advance....

Parra

2

I haven't tried it but I bet you can do:

def my_after_filter   response.body << update_page do |page|     page['element-id'].replace render :partial => "blah"   end end

Chad

3

Marcello Parra wrote:

I need to call page.replace_html in every Ajax call. Is there a way to do this in some after_filter ?

Given render :update do |page|, page is just a variable. You can pass it into a shared function, and that can then do both specific and generic stuff to it, following typical OO design techniques.

4

Thanks Chad,

But that gives an undefined method `update_page' error.... I could not find the problem....

Parra

5

Marcello Parra wrote:

But that gives an undefined method `update_page' error.... I could not find the problem....

<%= render :update => |page| do          end %>

right?

6

Yes..... But I need to call it in after_filter in a Controller.... I doing something wrong....

7

If you're calling it from inside a controller, update_page should work. Are you sure you're defining it in a controller as an instance method?

Chad

8

No, that's not right. Inside a view, you use update_page, not render :update. Internally render :update simply delegates to update_page.

Chad

9

Chad and all...

This is what I'm doing:

class TestController < ApplicationController   after_filter :setbla

  def setbla     response.body << update_page do |page|       page['element_id'].replace render :partial => "blah"     end   end

  def index   end end

I get the error: undefined method `update_page' for #<TestController:0x347e408>

Where is the mistake ??? Or is there another way to do that ??

Thanks

10

Have you found a solution? i'm also struggling with that issue