app/models/layout.rb



class Layout < ActiveRecord::Base
  # Default Order
  default_scope { order('name') }

  # Associations
  has_many :pages
  belongs_to :created_by, class_name: 'User'
  belongs_to :updated_by, class_name: 'User'

  # Validations
  validates_presence_of :name
  validates_uniqueness_of :name
  validates_length_of :name, maximum: 100
end