foodsoft/app/models/membership.rb

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# == Schema Information
# Schema version: 20090119155930
#
# Table name: memberships
#
# id :integer not null, primary key
# group_id :integer default(0), not null
# user_id :integer default(0), not null
#
2009-01-06 11:49:19 +01:00
class Membership < ActiveRecord::Base
belongs_to :user
belongs_to :group
# messages
ERR_NO_ADMIN_MEMBER_DELETE = "Mitgliedschaft kann nicht beendet werden. Du bist die letzte Administratorin"
# check if this is the last admin-membership and deny
def before_destroy
raise ERR_NO_ADMIN_MEMBER_DELETE if self.group.role_admin? && self.group.memberships.size == 1 && Group.find_all_by_role_admin(true).size == 1
end
end