ensl.org/app/models/category.rb

class Category < ActiveRecord::Base
  include Extra

  MAIN = 1
  SPECIAL = 10
  INTERVIEWS = 11
  RULES = 36

  DOMAIN_NEWS = 0
  DOMAIN_ARTICLES = 1
  DOMAIN_ISSUES = 2
  DOMAIN_SITES = 3
  DOMAIN_FORUMS = 4
  DOMAIN_MOVIES = 5
  DOMAIN_GAMES = 6

  PER_PAGE = 3

  attr_protected :id, :updated_at, :created_at, :sort

  validates_length_of :name, :in => 1..30
  validate :validate_domain

  scope :ordered, :order => "sort ASC, created_at DESC"
  scope :domain, lambda { |domain| {:conditions => {:domain => domain}} }
  scope :nospecial, :conditions => ["name != 'Special'"]
  scope :newest, :include => :articles, :order => "articles.created_at DESC"
  scope :page, lambda { |page| {:limit => "#{(page-1)*PER_PAGE}, #{(page-1)*PER_PAGE+PER_PAGE}"} }
    scope :of_user, lambda { |user| {:conditions => {"articles.user_id" => user.id}, :include => :articles} }

  has_many :articles, :order => "created_at DESC"
  has_many :issues, :order => "created_at DESC"
  has_many :forums, :order => "forums.position"
  has_many :movies
  has_many :maps
  has_many :gathers
  has_many :servers

  acts_as_readable

  def to_s
    name
  end

  def domains
    {DOMAIN_NEWS => 'News',
     DOMAIN_ARTICLES => 'Articles',
     DOMAIN_ISSUES => 'Issues',
     DOMAIN_SITES => "Sites",
     DOMAIN_FORUMS => "Forums",
     DOMAIN_MOVIES => "Movies",
     DOMAIN_GAMES => "Games"}
  end

  def validate_domain
    errors.add :domain, I18n.t(:invalid_domain) unless domains.include? domain
  end

  def can_create? cuser
    cuser and cuser.admin?
  end

  def can_update? cuser
    cuser and cuser.admin?
  end

  def can_destroy? cuser
    cuser and cuser.admin?
  end
end