gistfile1.txt

class Ability
  include CanCan::Ability

  def initialize(user)
    user ||= User.new # guest user (not logged in)

    can :manage, User, :id => user.id
    can :manage, Comment, :user_id => user.id
    can :manage, CommentVote, :user_id => user.id
    can :read, :all
    can :create, [ArtworkLike,ArtworkFlag,Comment,CommentVote,Relationship,
      Service,Tag,TemporaryImage,User]

    if user.artist?
      can :manage, Artwork, :user_id => user.id
      can :manage, ArtworkTag, :user_id => user.id
      can :create, Artwork
      can :create, ArtworkTag
    end
  end
end