Redirect Issue

Re-direct

application/controller

class ApplicationController < ActionController::Base
  protect_from_forgery
    rescue_from CanCan::AccessDenied do |exception|
      flash[:alert] = exception.message
    redirect_to root_url
  end
end



models/user.rb

class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :token_authenticatable, :confirmable, :lockable and :timeoutable
  devise :database_authenticatable, :registerable, 
         :recoverable, :rememberable, :trackable, :validatable

  # New Sign Ups
  attr_accessible :email, :password, :password_confirmation, :remember_me, :username
  has_and_belongs_to_many :roles
  has_many :articles
  
  # ensures usernames are unique and included in sign-up
  validates :username, :presence => true, :uniqueness => true
  


  def role?(role)
   return !!self.roles.find_by_name(role.to_s)
  end
  
  before_create :setup_role
  private
  def setup_role
    if self.role_ids.empty?
      self.role_ids = [3]
    end
  end
end