openproject/lib/open_project/global_roles/patches/role_patch.rb

#-- copyright
# OpenProject Global Roles Plugin
#
# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# version 3.
#
# 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.
#++

module OpenProject::GlobalRoles::Patches
  module RolePatch
    def self.included(base)
      base.send(:include, InstanceMethods)
      base.send(:extend, ClassMethods)

      base.class_eval do
        scope :givable, lambda {
          where(builtin: 0, type: 'Role').order('position')
        }

        class << self
          unless method_defined?(:find_all_givable_without_no_global_roles)
            alias_method :find_all_givable_without_no_global_roles, :find_all_givable
          end
          alias_method :find_all_givable, :find_all_givable_with_no_global_roles
        end

        alias_method_chain :setable_permissions, :no_global_roles
      end
    end

    module ClassMethods
      def find_all_givable_with_no_global_roles
        givable
      end
    end

    module InstanceMethods
      def setable_permissions_with_no_global_roles
        setable_permissions = setable_permissions_without_no_global_roles
        setable_permissions -= Redmine::AccessControl.global_permissions
        setable_permissions
      end
    end
  end
end

Role.send(:include, OpenProject::GlobalRoles::Patches::RolePatch)