Chris@909: # Redmine - project management software
Chris@909: # Copyright (C) 2006-2011  Jean-Philippe Lang
Chris@909: #
Chris@909: # This program is free software; you can redistribute it and/or
Chris@909: # modify it under the terms of the GNU General Public License
Chris@909: # as published by the Free Software Foundation; either version 2
Chris@909: # of the License, or (at your option) any later version.
Chris@909: #
Chris@909: # This program is distributed in the hope that it will be useful,
Chris@909: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@909: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@909: # GNU General Public License for more details.
Chris@909: #
Chris@909: # You should have received a copy of the GNU General Public License
Chris@909: # along with this program; if not, write to the Free Software
Chris@909: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@909: 
Chris@909: class Member < ActiveRecord::Base
Chris@909:   belongs_to :user
Chris@909:   belongs_to :principal, :foreign_key => 'user_id'
Chris@909:   has_many :member_roles, :dependent => :destroy
Chris@909:   has_many :roles, :through => :member_roles
Chris@909:   belongs_to :project
Chris@909: 
Chris@909:   validates_presence_of :principal, :project
Chris@909:   validates_uniqueness_of :user_id, :scope => :project_id
Chris@909: 
Chris@909:   after_destroy :unwatch_from_permission_change
Chris@909: 
Chris@909:   def name
Chris@909:     self.user.name
Chris@909:   end
Chris@909: 
Chris@909:   alias :base_role_ids= :role_ids=
Chris@909:   def role_ids=(arg)
Chris@909:     ids = (arg || []).collect(&:to_i) - [0]
Chris@909:     # Keep inherited roles
Chris@909:     ids += member_roles.select {|mr| !mr.inherited_from.nil?}.collect(&:role_id)
Chris@909: 
Chris@909:     new_role_ids = ids - role_ids
Chris@909:     # Add new roles
Chris@909:     new_role_ids.each {|id| member_roles << MemberRole.new(:role_id => id) }
Chris@909:     # Remove roles (Rails' #role_ids= will not trigger MemberRole#on_destroy)
Chris@909:     member_roles_to_destroy = member_roles.select {|mr| !ids.include?(mr.role_id)}
Chris@909:     if member_roles_to_destroy.any?
Chris@909:       member_roles_to_destroy.each(&:destroy)
Chris@909:       unwatch_from_permission_change
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   def <=>(member)
Chris@909:     a, b = roles.sort.first, member.roles.sort.first
Chris@909:     a == b ? (principal <=> member.principal) : (a <=> b)
Chris@909:   end
Chris@909: 
Chris@909:   def deletable?
Chris@909:     member_roles.detect {|mr| mr.inherited_from}.nil?
Chris@909:   end
Chris@909: 
Chris@909:   def include?(user)
Chris@909:     if principal.is_a?(Group)
Chris@909:       !user.nil? && user.groups.include?(principal)
Chris@909:     else
Chris@909:       self.user == user
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   def before_destroy
Chris@909:     if user
Chris@909:       # remove category based auto assignments for this member
Chris@909:       IssueCategory.update_all "assigned_to_id = NULL", ["project_id = ? AND assigned_to_id = ?", project.id, user.id]
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   # Find or initilize a Member with an id, attributes, and for a Principal
Chris@909:   def self.edit_membership(id, new_attributes, principal=nil)
Chris@909:     @membership = id.present? ? Member.find(id) : Member.new(:principal => principal)
Chris@909:     @membership.attributes = new_attributes
Chris@909:     @membership
Chris@909:   end
Chris@909: 
Chris@909:   protected
Chris@909: 
Chris@909:   def validate
Chris@909:     errors.add_on_empty :role if member_roles.empty? && roles.empty?
Chris@909:   end
Chris@909: 
Chris@909:   private
Chris@909: 
Chris@909:   # Unwatch things that the user is no longer allowed to view inside project
Chris@909:   def unwatch_from_permission_change
Chris@909:     if user
Chris@909:       Watcher.prune(:user => user, :project => project)
Chris@909:     end
Chris@909:   end
Chris@909: end