Controller action doesn't run with link_to function

Question

I need to call a simple controller action through my view using link_to.

In preferences > index.html.erb:

<%= link_to "My link", :controller => 
:preferences, :action => :produces_text %>

Note, I have also tried index.html.erb with this format with no luck:

<%= link_to "My link", {:controller =>
:preferences, :action => :produces_text } %>

In preferences_controller.rb:

def produces_text
  puts "test"
  redirect_to preferences_url
end

In routes:

resources :preferences do
  member do
    get 'produces_text'
  end
end

"test" is not produced in the terminal when I click "My link" and I am not redirected to preferences_url either.

Robin · Accepted Answer · 2013-03-09 01:10:49Z

2

resources :preferences do
    collection do
        get 'produces_text', as: :produces_text
    end
end

<%= link_to "Link", produces_text_preferences_path %>

answered Mar 9, 2013 at 1:10

Robin

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7 Comments

dblarons Over a year ago

WOW! You are the best! So, it turns out the collection part is the one making the difference. What is the difference between collection and member? I will accept your answer in 1 minute!

Logan Serman Over a year ago

Member will act on a single preference, i.e., preferences/1/produces_text. Collection acts on the collection, i.e., preferences/produces_text

dblarons Over a year ago

So, for instance, if I wanted to pass a image_id within a link_to tag, I would need to do member?

Robin Over a year ago

No, you wouldn't necessarily. What are you trying to do exactly? As much as possible, you should think in terms of resources to design your restful routes.

dblarons Over a year ago

How should I pass an image_id from the view to the controller? I tried adding :image_id => 3 to the view and then puts params[:image_id] in the controller, but the params[:image_id] is nil.

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