Question

I keep getting these errors for no route matches for actions ‘edit’

controller:

def remove_artifact_from_collection

... do my stuff ..

render(:action=>:show)
end

view: the line on which it errors

<p><%= link_to 'Edit Evidence Item', edit_artifact_path, :class => 'edit_button' %></p>

routes:

resources :artifacts do
    collection do
    get 'remove_artifact_from_collection'
    end
end

bundle exec rake routes

 remove_artifact_from_collection_artifacts GET    /artifacts/remove_artifact_from_collection(.:format)      {:controller=>"artifacts", :action=>"remove_artifact_from_collection"}
                                 artifacts GET    /artifacts(.:format)                                      {:controller=>"artifacts", :action=>"index"}
                                           POST   /artifacts(.:format)                                      {:controller=>"artifacts", :action=>"create"}
                              new_artifact GET    /artifacts/new(.:format)                                  {:controller=>"artifacts", :action=>"new"}
                             edit_artifact GET    /artifacts/:id/edit(.:format)                             {:controller=>"artifacts", :action=>"edit"}
                                  artifact GET    /artifacts/:id(.:format)                                  {:controller=>"artifacts", :action=>"show"}
                                           PUT    /artifacts/:id(.:format)                                  {:controller=>"artifacts", :action=>"update"}
                                           DELETE /artifacts/:id(.:format)                                  {:controller=>"artifacts", :action=>"destroy"}

Answer 1

That’s because you’re not supplying an artifact/id to edit_artifact_path. Assuming your artifact is in the @artifact instance variable, you should use:

link_to 'Edit Evidence Item', edit_artifact_path(@artifact), ...

You could also use:

link_to 'Edit Evidence Item', [:edit, @artifact], ...