Second iteration of Article model.

article.rb

class Article < ActiveRecord::Base
  include Categorizable

  APPROVED = 'approved'
  PENDING = 'pending'
  REJECTED = 'rejected'

  attr_accessible :approved_at, :url, :body, :image, :rating, :state, :title, :news_source_id, :published_at

  validates :url, :uniqueness => true
  validates :rating, :inclusion => { :in => (0..10) }
  validates :title, :presence => true

  mount_uploader :image, PhotoUploader

  belongs_to :news_source

  def self.pending
    where(state: PENDING).order(:published_at)
  end

  def self.approved
    where(state: APPROVED).order('approved_at DESC')
  end

  #####
  # ...
  # The rest of the methods ommited
  # ...
  #####

end