Problem with rjs accessing a controller instance variable.

rubyonrails-talk
1

Hello.

My rjs cannot obtain the instance variable set up in the associated controller method. I have described the code below. Will appreciate any thoughts on "why". I am using InstantRails on Windows XP with the Rails version of 2.0.2.

I have the following code (simplified)

in LearnController.rb

def page_via_ajax    # debugger    render :layout => false    puts("in LearnController.page_via_ajax method")    @my_page_id = "pg_7" end

in page_via_ajax.rjs

puts("in page_via_ajax.rjs") puts("@my_page_id:#{@my_page_id}:")

System output:

in LearnController.page_via_ajax method in page_via_ajax.rjs @my_page_id::

Apparently the rjs file does not get the value of the @my_page_id instance variable created in the controller.

What are the reasons and what is the solution?

With thanks and regards,

Abbas

2

The render happens when you call render (is this surprising?), and you assign to @my_page_id after you call render.

Fred

3

Thanks, Fred!

I assumed that "render :layout => false" was a configuration setting which would be used whenever Rails renders and did not realise that the statement would actually render!

With regards, Abbas