Undefined method 'render_component_as_string' - why?

I want to put a ‘search_box’ text_field in the header of each page.
The search_box is implemented in a controller named ‘users’.
(so Controller_A is calling a component in Controller_B)

When I add this line to my ‘controllers/application.rb’ file, I don’t
understand why I get and ‘undefined method’ error. After all, “class
ApplicationController < ActionController::Base”.

@sbox = render_component_as_string(:controller=>‘users’,

My problem is very similar to the the one described in a post to this
list 6
months ago:

Nobody ever explained it then. I corresponded with the February poster,
points out that it is ‘protected’, and suggests that is why Controller_A
can’t call an Action in Controller_B. But some folks on the Site5
forums, as
well as the book authors (Dave T., ‘Agile Web D. with
Chad F., ‘Rails Recipes’) claim to make cross-controller calls. And
cross-controller invocations simply didn’t work, the whole point of
Components would be greatly diminished.

I also read this nice ‘components’ doc

which leaves a little unclear if both ‘render_component’ and
‘render_component_as_string’ can both be called from either a View or
Controller, but I think the doc is saying that either method can be
from either location. So why is it ‘undefined’?

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs