Rails link that updates integer in DB

Question

I have a column in my table that is an integer. I'm trying to make a link in my application that puts a specific integer in that column.

i.e. :

User clicks link labeled 0 => record in DB sets record to 0

User clicks link labeled 1 => record in DB sets record to 1

ETC. . .

In the VIEW:

<%= link_to "0", 
     {:controller => "application", 
      :action => 'rate_app'}, 
      :class => "rate_btn", 
      :method=> :put 
%>

In the CONTROLLER:

def rate_app(current_user, rating)
  current_user.nps_rating = rating
  if current_user.save
    redirect_to mypage_path
  end
end

Does anyone see a conflict/mess-up in the code? I get an error.

I also don't know what the question is. It's also odd to use the application controller directly. Normally you create your own model specific controllers. It's more 'rails-y' to use restful resources if applicable. — Homan
– Homan, Commented Oct 13, 2011 at 20:58
I guess my question is regarding the fact that the above code doesn't work. I got an error. — jwilsco
– jwilsco, Commented Oct 13, 2011 at 21:41

Matt Polito · Accepted Answer · 2011-10-13 20:58:24Z

1

If you are adding information to your db, it should be done via a POST. Links are a GET. With that being said, I would suggest looking at button_to to solve this one.

http://apidock.com/rails/ActionView/Helpers/UrlHelper/button_to

answered Oct 13, 2011 at 20:58

Matt Polito

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