Rails - Jun 2009 - in a view, call a helper method from another controller

I need to call a helper method from another controller.  The catch is
that I have the same method name defined in my current controllers
helper.

Here the partial will use the the default column_list defined in my
helper.
<%=render ''companies/company'', :object => @company%>
For example, if I change the call to specify the method, it still runs
great:
<%=render ''companies/company'', :object => @company,
:locals =>
{:column_list => method(:column_list)}%>

Here I want to use another''s helper column_list:
<%=render ''companies/companies'', :object =>
@customers_employees, :locals => {:column_list =>
CustomersEmployeesController.new.method(:column_list)} %>

I get this error:
undefined method `column_list'' for class
`CustomersEmployeesController''

How can I pass the reference to the right helper method?

On Jun 14, 5:31 am, Constantin Gavrilescu
<comisarulmoldo...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> Here I want to use another''s helper column_list:
> <%=render ''companies/companies'', :object =>
> @customers_employees, :locals => {:column_list =>
> CustomersEmployeesController.new.method(:column_list)} %>
>
> I get this error:
> undefined method `column_list'' for class
> `CustomersEmployeesController''
>
> How can I pass the reference to the right helper method?
helper_methods are not methods of the controller - they are methods of
the associated helper module (usually CustomerEmployeesHelper in this
case). Does that help ?

Fred

On 14 juin, 05:18, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On Jun 14, 5:31 am, Constantin Gavrilescu
>
> <comisarulmoldo...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > Here I want to use another''s helper column_list:
> > <%=render ''companies/companies'', :object =>
> > @customers_employees, :locals => {:column_list =>
> > CustomersEmployeesController.new.method(:column_list)} %>
>
> > I get this error:
> > undefined method `column_list'' for class
> > `CustomersEmployeesController''
>
> > How can I pass the reference to the right helper method?
>
> helper_methods are not methods of the controller - they are methods of
> the associated helper module (usually CustomerEmployeesHelper in this
> case). Does that help ?
>
I realize that.
I want to call a helper method column_list available when running
CustomersEmployeesController. CustomersEmployeesController inherits
from CompaniesController, which includes the helper method needed. I
cannot hardcode the file name of the module where this method is,
because I might redefine it later in CustomersEmployeesHelper and that
would drive crazy the maintenance programmer when will find that
normal mechanisms of inheritance don''t work.

I thought that instantiating CustomersEmployeesController will include
automatically his Helper module, but it appears it doesn''t.

On Jun 19, 10:28 pm, Constantin Gavrilescu
<comisarulmoldo...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On 14 juin, 05:18, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>
> > > How can I pass the reference to the right helper method?
>
> > helper_methods are not methods of the controller - they are methods of
> > the associated helper module (usually CustomerEmployeesHelper in this
> > case). Does that help ?
>
> I realize that.
> I want to call a helper method column_list available when running
> CustomersEmployeesController. CustomersEmployeesController inherits
> from CompaniesController, which includes the helper method needed. I
> cannot hardcode the file name of the module where this method is,
> because I might redefine it later in CustomersEmployeesHelper and that
> would drive crazy the maintenance programmer when will find that
> normal mechanisms of inheritance don''t work.
>
> I thought that instantiating CustomersEmployeesController will include
> automatically his Helper module, but it appears it doesn''t.
Why not put the relevant helper methods in a module that both
controllers use ?

Fred