Question

In my model, I have a method that returns a variable.

def do_something(param1, param2)
  #code
  return variable
end

I successfully call this method from a partial rendered in my show page. Like this:

<%= @user.do_something(param1, param2) %>

I want to call the same method from a partial rendered in my index page. But I’m running into errors. edit: an undefined method for class error.

I could copy and paste all my method code into a duplicative method like:

def self.do_something(param1, param2)
  #code
  return variable
end

and call it from the index page partial like this…

<%= User.do_something(param1, param2) %>

… but that’s not DRY, and I know there’s probably a more appropriate solution out there. I’m still learning rails mechanics, so I appreciate your help.

Answer 1

At least you can use delegation:

class User < ActiveRecord::Base
  def do_something param1, param2
    self.class.do_something param1, param2
  end

  def self.do_something param1, param2
    ...
    return variable
  end
end