[Ruby] ApplicationHelper methods in ActionMailer templates

[Ken Harris]

(Ruby 1.8.6, Rails 1.2.5.)

How do you use/get ApplicationHelper methods in an ActionMailer
template?

The comment above ApplicationHelper says it's included in all
templates.  I've got a method in ApplicationHelper that wraps url_for
(for a specific case), and I'm using in my normal Rails views, and
everything is good.

I want to put this link in an email, too, so I tried just using the
helper in my ActionMailer template.  No good: apparently
ApplicationHelper is only included in templates called by
ActionController or something.  No problem -- I'll just include
ApplicationHelper where I need it by hand, right?

Well, after mucking around for a while, I can't seem to figure it out.
The method doesn't seem to exist even when explicitly imported, or the
url_for call is expecting something which ActionMailer::Base doesn't
have, or something worse.

The obvious things didn't work, and the more obscure solutions I try
to come up with, the weirder the error messages get.  That's usually a
sign I'm missing something simple and correct.

Has anybody done this before?  What stupidly simple thing am I
missing?

thanks,


- Ken