You can specify Javascript callbacks for the various phases of the
remote call and also for specific response status or status codes (see
the doc for link_to_remote at
http://tinyurl.com/s47df ; remote_function
takes the same arguments).
So it might be something like this (off the top of my head):
remote_function( :update => "subcat", :url => { :controller =>
"categories", :action => "get_subcategories"}, :position => "replace",
:with => "'category_id='+this.value", 302 => "handleRedirection(request)" )
where handleRedirection() is a Javascript function you've written to do the redirection (I'm assuming the response Lcation: header is available there, but haven't checked).
hth,
dwh
Charanya Nagarajan wrote:
> Hi All
> In my application,i have a form which contains a select box for
> "categories"
> And when the user selects a category,a remote function is called which
> fetches a list of subcategories and populates in another select box on
> the form
> <div id="categorylist">
> <div id="category">Category:<%= collection_select :category, :id,
> @categories, :id , :name, {}, {:size => 10, :onchange =>
> remote_function( :update => "subcat", :url => { :controller =>
> "categories", :action => "get_subcategories"}, :position => "replace",
> :with => "'category_id='+this.value" ) } %></div>
> </div>
> I have a div with id "subcat" on the form.
> I also have set a session timeout of 10 mins.
> I am getting my page redirected to login page if not the session is
> present/timed out.I am doing this by having the function called
> "login_required" in the application.rb controller and in all controllers
> I am adding
> before_filter :login_required
> But this is working only in case of Normal Http requests.
> In the above case,if the session has expired,and the user is trying to
> populate the subcategory list using remote call,I am getting the error
> message updated in the div with id subcat .
> But I want the page to be redirected to login page,even when there are
> remote calls to the function if session has timed out.
> I am in need of a solution at the earliest.Kindly help me
> Thanks
> Charanya
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