RJS for error-handling

Rails
1

All,

Do we have access to all of the controller variables in RJS so that we
can make decisions within that template as they relate to errors that
may have occurred on a form_to_remote call?

I have a form_to_remote call that I want to either update a DIV on my
page (success) or redisplay the entry form with error messages (some
error).

I’m pretty sure I can set up two RJS files, one for each case. But what
about having one RJS template that is capable of deciding which set of
Javascript to execute - can that be done?

I don’t think so, but I thought I would ask.

Thanks,
Wes

2

Got this to work but it feels hokey.

My controller action renders to an RJS action, like so:

unless XYZ.is_valid_email_address?(proof_email)
flash[:error] = ‘The email address that you entered was not valid’
return render :action => ‘proof_failed’
end

Then proof_failed.rjs does:

page.hide(‘proof_status’)
page.redirect_to :action => ‘proof_form’

The hide is so that the Javascript isn’t rendered in the target ‘div’
specified in the form_to_remote call. Then the redirect just sends me
back to the entry form which displays my error.

A bit roundabout.

I’m thinking about a mixed - mode thing where you could use the
traditional return method to handle errors and only respond to the AJAX
query upon success. But that would leave a bunch of AJAX requests
hanging which wouldn’t be good.

Hmmm…

Hope this helps someone.

Wes