On Mar 1, 8:48 pm, Rube Noob <[email protected]> wrote:
> Hello
>
> I do not understand how to use instance variable properly with partial
> views, I am hoping someone here can enlighten me. For example
>
> class MainController < ApplicationController
> def index
> @item_list = Item.find_all_item
> end
>
> def detail_display
> @current_selected = @item= Item.find(params[:id])
> redirect_to :action => :index
> end
> end
>
> detail_display is invoked when the user clicks on an item in the list.
> The variable @current_selected is not available to the partial view
> invoked when the index is redirected to. How can I remedy this?
>
The key thing you need to understand here is that this is an http
redirect, ie a separate request: by the time the index action is
rendered the controller object that had the @current_selected instance
variable has been destroyed and your request is being handled by a
completely fresh controller object. If the index action needs to know
what the currently selected object is then you need to pass a
parameter to it telling it this. In this light, I'm not sure what the
point of the detail_display action is as it seems to be a complete no-
op.
Fred
> Thank you
>
> rube_noob
> --
> Posted viahttp://www.ruby-forum.com/.
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