SoundSoftware Code Site

# Redmine - project management software

# Copyright (C) 2006-2014  Jean-Philippe Lang

#

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; either version 2

# of the License, or (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

class MemberRole < ActiveRecord::Base

  belongs_to :member

  belongs_to :role

  after_destroy :remove_member_if_empty

  after_create :add_role_to_group_users, :add_role_to_subprojects

  after_destroy :remove_inherited_roles

  validates_presence_of :role

  validate :validate_role_member

  def validate_role_member

    errors.add :role_id, :invalid if role && !role.member?

  end

  def inherited?

    !inherited_from.nil?

  end

  private

  def remove_member_if_empty

    if member.roles.empty?

      member.destroy

    end

  end

  def add_role_to_group_users

    if member.principal.is_a?(Group) && !inherited?

      member.principal.users.each do |user|

        user_member = Member.find_or_new(member.project_id, user.id)

        user_member.member_roles << MemberRole.new(:role => role, :inherited_from => id)

        user_member.save!

      end

    end

  end

  def add_role_to_subprojects

    member.project.children.each do |subproject|

      if subproject.inherit_members?

        child_member = Member.find_or_new(subproject.id, member.user_id)

        child_member.member_roles << MemberRole.new(:role => role, :inherited_from => id)

        child_member.save!

      end

    end

  end

  def remove_inherited_roles

    MemberRole.where(:inherited_from => id).group_by(&:member).

        each do |member, member_roles|

      member_roles.each(&:destroy)

    end

  end

end