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78 lines
2.2 KiB
78 lines
2.2 KiB
#-- encoding: UTF-8
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#-- copyright
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# OpenProject is a project management system.
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# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
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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) 2006-2017 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 doc/COPYRIGHT.rdoc for more details.
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#++
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class Authorization::AbstractQuery
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class_attribute :model
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class_attribute :base_table
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def self.query(*args)
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arel = transformed_query(*args)
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model.joins(joins(arel))
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.where(wheres(arel))
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.distinct
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end
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def self.base_query
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Arel::SelectManager
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.new(nil)
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.from(base_table || model.arel_table)
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end
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def self.transformed_query(*args)
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run_transformations(*args)
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end
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class_attribute :transformations
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self.transformations = ::Authorization::QueryTransformations.new
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def self.inherited(subclass)
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subclass.transformations = transformations.copy
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end
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def self.run_transformations(*args)
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query = base_query
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transformator = Authorization::QueryTransformationVisitor.new(transformations: transformations,
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args: args)
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transformator.accept(query)
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query
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end
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def self.wheres(arel)
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arel.ast.cores.last.wheres.last
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end
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def self.joins(arel)
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arel.join_sources
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end
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end
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