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copied!<p>I am assuming you are using <code>resources :photo</code>.<br> The action should be <code>destroy</code> and not <code>delete</code>, as per the <a href="http://guides.rubyonrails.org/routing.html#crud-verbs-and-actions" rel="nofollow">Rais Guide</a>.<br> The seven default actions are: <code>index, new, create, show, edit, update and destroy</code></p> <pre><code> def destroy @photo = current_user.photos.find(params[:id]) @photo.destroy redirect_to photos_path end </code></pre> <p>You can also see the <a href="http://guides.rubyonrails.org/routing.html#inspecting-and-testing-routes" rel="nofollow">available routes</a> by:</p> <pre><code>rake routes </code></pre> <p><strong>EDIT</strong></p> <p>The problem is here: <code>:only => [:index, :show, :new, :create]</code>, which is saying to rails: do not create <code>destroy</code>, <code>edit</code> or <code>update</code> routes.</p> <p>To solve the problem, you can add destroy to it <code>:only => [:index, :show, :new, :create, :destroy]</code> or use <code>:except</code> instead: <code>:except => [:edit, :update]</code></p> <p>If you don't want to limitate the resources:</p> <pre><code>resources :photos do post 'upload', :on => :collection end </code></pre> <p><strong>EDIT 2</strong> - I don't really understand why you are trying to use <code>delete</code> instead of <code>destroy</code>, However, if you have a good reason for it:</p> <pre><code>resources :photos :only => [:index, :show, :new, :create] do post 'upload', :on => :collection get 'delete', :on => :member end </code></pre> <p>In this way you will have the <code>delete_photo_path</code>, which can be used in your show view:</p> <pre><code><%= link_to 'Delete', delete_photo_path(@photo) %> </code></pre> <p>Finally, the action delete should looks like:</p> <pre><code>def delete @photo = Photo.find(params[:id]) @photo.destroy redirect_to photos_path end </code></pre>

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