Using other format for rendering

[ghost]

Hello,

I tried somethings wich doesn't work and makes me crazy :-)

In the initializers/devise.rb, I added a new format for iPad (because I have a template especially for iPad) : config.navigationalformats = [:"/", "/_", :html, :ipad]

in my application_controller.rb, I detect if its an ipad and add the format: before_filter :adjust_format_for_ipad private def adjust_format_for_ipad
request.format = :ipad if ipad_user_agent? end

I created a view in devise/sessions/new.ipad.erb with the login form When I try to access to the url /my, it redirects me to /users/sign_in, the form is correctly rendered (good !) .

However after posting my credential, I get this message: Missing template devise/sessions/create with {:locale=>[:en, :en], :formats=>[:ipad], :handlers=>[:rjs, :rhtml, :erb, :rxml, :builder]} As I learned, it shouldn't have any template for the action 'create'. If I try to access to /my after the authentication, I get the right authenticated page.

Did I something wrong?

Thank you for your help

[josevalim]

Devise version and full backtrace please?

[ghost]

Version : 1.1.8

ActionView::MissingTemplate (Missing template devise/sessions/create with {:locale=>[:en, :en], :formats=>[:ipad], :handlers=>[:rjs, :rhtml, :erb, :rxml, :builder]} in view paths "/app/views", "/vendor/plugins/plugins/app/views", "/vendor/plugins/acts_as_tree/app/views", "/opt/local/lib/ruby/gems/1.8/gems/client_side_validations-3.0.0.alpha.9/app/views", ".bundler/ruby/1.8/devise-74166e224b4d/app/views"):

Rendered /opt/local/lib/ruby/gems/1.8/gems/actionpack-3.0.4/lib/action_dispatch/middleware/templates/rescues/missing_template.erb within rescues/layout (0.8ms)

[josevalim]

Hrm, I have no idea what is happening yet. Another question: this error when your credentials are valid and invalid? Or just one of them? Can you sign in normally outside the ipad format?

[ghost]

Only when credentials are valid, when it's invalid it goes back to the form. I works normally in ':html' mode

[josevalim]

Weird issue to happen on 1.1.8. Although understandable if it was happening on master. Look at v1.1.8 code:

https://github.com/plataformatec/devise/blob/v1.1.8/app/controllers/devise/sessions_controller.rb#L15

However, master calls respond_with, which will trigger your responder. Try switching to Devise master and doing the following in an initializer:

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

[ghost]

I'm not sure if I'm doing this right: I did a gem update devise (initially installed through the gemfile, using the master url) I created an initializer in the folder initializers called action_controller.rb and pasted your code.

I got this message when I 'rails s'

/config/initializers/action_controller.rb:2: undefined method ipad' for classActionController::Responder' (NameError) from /config/initializers/action_controller.rb:1:in `class_eval' from /config/initializers/action_controller.rb:1

[josevalim]

Sorry, my code was wrong. I never get the alias order right. :S Try this:

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

[ghost]

huuu ! Thank you very much ! it works!

[josevalim]

Glad to help! Could you please add a new section to the Wiki with a title like: "How To: Make Devise work with other formats like mobile, iphone and ipad" and describe the steps you did? Basically what you described at the beginning of this issue and the hack I gave you.

Then other developers in the future will have a guideline to follow! Thanks a lot! :D

[ghost]

I tried my best :-), I'm not good a writing doc :-)

[swrobel]

I'm really confused about why this is all necessary considering that there aren't html versions of the views for create. If :mobile is included in the navigational formats, why do we need to include this code?

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

[ghost]

In my case, the iPad doesn't have the same content as the iPhone. This is why I had to separate

[paulnicholson]

any word on why you need the alias after adding to the navigational formats?

[josevalim]

It is a rails requirement. If you don't understand how responders work, try reading more about it. Like docs and so on.

[paulnicholson]

I understand responders. I asking why devise doesn't set that up for you using the navigational formats array.

[josevalim]

I wouldn't assume it is Devise's responsibility to setup your application responder.

[swrobel]

Perhaps I'm a little uninformed, but I have my :mobile format set up and my mobile views all work fine. The question for me is why Devise won't respond to :mobile format for actions that simply redirect without adding the following to an initializer:

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

[josevalim]

Because Devise uses respond_with internally and, if you don't have an specific format registered in the responder (and in respond_with), that format can't be called in the first place.

[ketanjm]

HI, im using rails3.1

gem 'mobylette' gem 'jquery_mobile_rails'

and added these configuration in initializers

in new .rb file in initializers

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

And

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

but not getting mobile views still error

ActionView::MissingTemplate (Missing template users/sessions/new, devise/sessions/new, devise/new, application/new with {:handlers=>[:erb, :builder, :coffee], :formats=>[:mobile], :locale=>[:en, :en]}. Searched in:

• "/home/athansh/KETANAPP/DealsWithWeel/app/views"
• "/home/athansh/.rvm/gems/ruby-1.9.2-p0@messanger/bundler/gems/devise-fff75b19040a/app/views" ):

and other templates for which i created .mobile.erb working fine

what should i check

[ketanjm]

Done!!!, Actually I didn't created mobile views for devise templates !!!:)

[parkr]

So @josevalim, you seem to have been a helpful source here thus far.

I'm in a similar boat, but when I aliased :to_mobile to :to_html, I got the incorrect views (the *.html.erb ones, to be exact. I want the *.mobile.erb ERBs). I've done everything else suggested, but am stuck. I get the error of a missing template for devise/sessions/create, which I definitely shouldn't get, ever.

[ketanjm]

try this gem 'mobylette'

[ketanjm]

try this gem 'mobylette'

[ketanjm]

try this gem 'mobylette'

[ketanjm]

try this gem 'mobylette' and set temp at config/initializers/devise.rb

config.navigationalformats = ["/_", :html, :mobile]

[ketanjm]

try this gem 'mobylette' and set at config/initializers/devise.rb

config.navigationalformats = ["/_", :html, :mobile]

[parkr]

That doesn't seem to work. Here's my devise.rb file.

[ketanjm]

its may be the version problem , check the latest versions and follow correct instruction given on README's its working perfectly for my application .

[dankozlowski]

@parkr I'm getting the same issue. Were you able to resolve?

[parkr]

@dankozlowski I added the following to the bottom of my config/initializers/devise.rb file:

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