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69 lines
2.2 KiB
69 lines
2.2 KiB
#-- encoding: UTF-8
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#-- copyright
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# OpenProject is an open source project management software.
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# Copyright (C) 2012-2021 the OpenProject GmbH
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License version 3.
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#
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# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
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# Copyright (C) 2006-2013 Jean-Philippe Lang
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# See docs/COPYRIGHT.rdoc for more details.
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#++
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require "ostruct"
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##
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# Service state object to be passed around services
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# for remembering state between service calls (e.g., when copying).
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#
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# Borrows heavily from interactor gem's context class at
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# https://github.com/collectiveidea/interactor
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module Shared
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class ServiceState < OpenStruct
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##
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# Builds the context object unless
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# it's already an instance of this context.
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def self.build(state = {})
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self === state ? state : new(state)
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end
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##
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# Remember that the state was passed to the given service
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def called!(service)
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service_chain << service
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end
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# Roll back the context on all used services
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def rollback!
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return false if @rolled_back
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service_chain.reverse_each do |service|
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Rails.logger.debug { "[Service state] Rolling back execution of #{service}." }
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service.rollback
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end
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@rolled_back = true
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end
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# Remembered service calls this context was used against
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def service_chain
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@service_chain ||= []
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end
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end
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end
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