accessing devise current_user within model

Question

hi i am trying to access current_user within a model for the purpose of creating an element on the fly with find_or_create_by.

the following is the method within my mode

Answer 1

Access current_user in Model File:

# code in Applcation Controller:
class ApplicationController < ActionController::Base
  before_filter :global_user

  def global_user
    Comment.user = current_user
  end
end

#Code in your Model File :
class Comment < ActiveRecord::Base
  cattr_accessor :user  # it's accessible outside Comment
  attr_accessible :commenter 

  def assign_user
    self.commenter = self.user.name
  end
end

Pardon me, if It violates any MVC Architecture Rules.