Redmine

  has_and_belongs_to_many :users, :after_add => :user_added,

                                  :after_remove => :user_removed

  validates_presence_of :lastname

  validates_uniqueness_of :lastname, :case_sensitive => false

  validates_length_of :lastname, :maximum => 30

  has_many :projects, :through => :memberships

  has_many :issue_categories, :foreign_key => 'assigned_to_id', :dependent => :nullify

  # Groups and active users

  named_scope :active, :conditions => "#{Principal.table_name}.type='Group' OR (#{Principal.table_name}.type='User' AND #{Principal.table_name}.status = 1)"

  # Active non-anonymous users scope

  named_scope :active, :conditions => "#{User.table_name}.status = #{STATUS_ACTIVE}"

  attr_accessor :password, :password_confirmation

  attr_accessor :last_before_login_on

  # Prevents unauthorized assignments