How to use customized methods in application.controller.rb?

Question

I'm a newbie in rails and ruby. I'm so confused by some conventions in rails~

I wrote a method like this:

def show_session_counter?
  if session[:counter] && session[:counter] > 4
  end
end

... And want to use the method in application.html.erb like this:

<% if show_session_counter? %>
      <li><a href="#"><%= pluralize session[:counter], "time" %></a></li>
<% end %>

First, I tried to put the method in application.controller.rb because I thought the method will be used in application.html.erb. I tried to put it as a normal method and as a private one. Neither work.

Then I put the method in the application_helper.rb and it works.

So my questions is: why the first way doesn't work? Is there any "rails convention" here?

Thank you so much!

Mikhail Nikalyukin · Accepted Answer · 2013-01-12 07:46:04Z

1

When you put method inside your controller and want to use it in view, you need to declare it as helper_method.

helper_method :show_session_counter?

def show_session_counter?
  if session[:counter] && session[:counter] > 4
  end
end

answered Jan 12, 2013 at 7:46

Mikhail Nikalyukin

12k1 gold badge49 silver badges72 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Jim Deville Over a year ago

Expanding @Mikhail's answer for your second question. The general rails convention here is that if you need it in your controllers, it should go in there with helper_method. If it is only for use in views (HTML generation, custom link settings, etc), then it should be in the helper

Collectives™ on Stack Overflow

How to use customized methods in application.controller.rb?

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related