Question

I’m trying to get devise to login but I’m getting a 500 error due to missing template. Any idea? Why is it trying to render devise/sessions/create ?

Rails 3.1

---

I’m using the mobylette gem: https://github.com/tscolari/mobylette
I have devise configured with:

config.navigational_formats = [:"*/*", "*/*", :html, :mobile]

---

Completed 500 Internal Server Error in 145msActionView::MissingTemplate (Missing template devise/sessions/create, application/create with {:handlers=>[:erb, :builder, :coffee, :haml], :formats=>[:mobile], :locale=>[:en, :en]}. Searched in: * "/Users/Armageddon/Projects/Business/jquerymobiletest/app/views" * "/Users/Armageddon/.rvm/gems/ruby-1.9.2-p180-patched@jquerymobiletest/gems/devise-1.4.9/app/views"): Rendered /Users/Armageddon/.rvm/gems/ruby-1.9.2-p180-patched@jquerymobiletest/gems/actionpack-3.1.0/lib/action_dispatch/middleware/templates/rescues/missing_template.erb within rescues/layout (0.5ms)

Answer 1

I had to make the following changes to make this work:

config/initializers/devise.rb

config.http_authenticatable_on_xhr = false
Had to make that false otherwise jQuery mobile sends XHR requests to login and you get a 401 error.

config.navigational_formats = [:"*/*", "*/*", :html, :mobile]

This otherwise it wouldn’t recognize the format. You’d think this would handle the redirections but it actually doesn’t. You need to do one more thing.

It’s hacky to me so I added it to:
config/initializers/devise_hack.rb

ActionController::Responder.class_eval do
alias :to_mobile :to_html
end

Now it works.

One more thing though; in my application.rb I have this for mobylette to setup my mobile stuff:

respond_to_mobile_requests :skip_xhr_requests => false, :fall_back => :html


Between the Responder.class_eval and the :fall_back => :html you’d think that these wouldn’t be necessary. A lot of the config’s written seem to be the same thing and or duplicated. However without all of these settings it just doesn’t work.