openproject/lib/open_project/before_delayed_job.rb

#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2015 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.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2013 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# 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.
#
# See doc/COPYRIGHT.rdoc for more details.
#++

module OpenProject
  # Includable in a delayed job to perform common operations that should happen before all
  # delayed jobs.
  module BeforeDelayedJob
    def self.included(base)
      base.prepend Overrides
    end

    module Overrides
      def perform
        reset_request_store!
        super
      end

      private

      # Resets the thread local request store.
      # This should be done, because normal application code expects the RequestStore to be
      # invalidated between multiple requests and does usually not care whether it is executed
      # from a request or from a delayed job.
      # For a delayed job, each job execution is the thing that comes closest to
      # the concept of a new request.
      def reset_request_store!
        RequestStore.clear!
      end
    end
  end
end