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POHow do I set the default format, like JSON, for a customized Devise controller in Rails 3?
 

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  1. POHow do I set the default format, like JSON, for a customized Devise controller in Rails 3?
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    <p>My Rails 3 app has three customized controllers for my Devise + OmniAuth integration. I needed to override the standard methods, like 'new', for user registrations and sessions. I specifically needed the controller methods to handle redirects and responses that are compatible with JSON formatting.</p> <p>In my routes.rb file I have the following:</p> <pre><code>devise_for :users, :controllers =&gt; { :omniauth_callbacks =&gt; "users/omniauth_callbacks", :registrations =&gt; "users/registrations", :sessions =&gt; "users/sessions" } </code></pre> <p>That works as expected. My routes now show the custom controller routes like:</p> <pre><code>new_user_session GET /users/sign_in(.:format) { :action =&gt;"new", :controller =&gt;"users/sessions" } new_user_registration GET /users/sign_up(.:format) { :action=&gt;"new", :controller=&gt;"users/registrations" } </code></pre> <p>To set the default format for a resource I would do something like this:</p> <pre><code>resources :users, :defaults =&gt; { :format =&gt; 'json' } </code></pre> <p>So, I tried this:</p> <pre><code>namespace "users" do resources :registrations, :defaults =&gt; { :format =&gt; 'json' } resources :sessions, :defaults =&gt; { :format =&gt; 'json' } end </code></pre> <p>Which did not work as expected. I ended up with these routes:</p> <pre><code>new_users_registration GET /users/registrations/new(.:format) { :format=&gt;"json", :action=&gt;"new", :controller=&gt;"users/registrations" } new_users_session GET /users/sessions/new(.:format) { :format=&gt;"json", :action=&gt;"new", :controller=&gt;"users/sessions" } </code></pre> <p>In order for this to work with my custom overrides in Devise, I need to format 'new_user_registration' not 'new_users_registration'.</p> <p>I checked the 'devise_for' method and it does not have a :defaults option. I can use the 'devise_scope' method to set the individual routes, but that seems far less concise that the :defaults idiom.</p> <p>Does anyone know of any routing magic that I can use to make this happen?</p>
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