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87 lines
2.8 KiB
87 lines
2.8 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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class ::Query::SortCriteria < ::SortHelper::SortCriteria
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attr_reader :available_columns
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##
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# Initialize the sort criteria with the set of columns
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def initialize(available_columns)
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super()
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@available_columns = available_columns
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end
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##
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# Building the query sort criteria needs to respect
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# specific options of the column
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def to_a
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criteria_with_default_order
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.map { |attribute, order| [find_column(attribute), @available_criteria[attribute], order] }
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.reject { |column, criterion, _| column.nil? || criterion.nil? }
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.map { |column, criterion, order| [column, execute_criterion(criterion), order] }
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.map { |column, criterion, order| append_order(column, Array(criterion), order) }
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.compact
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end
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private
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##
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# Find the matching column for the attribute
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def find_column(attribute)
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available_columns.detect { |column| column.name.to_s == attribute.to_s }
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end
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##
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# append the order to the criteria
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# as well as any order handling by the column itself
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def append_order(column, criterion, asc = true)
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ordered_criterion = append_direction(criterion, asc)
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ordered_criterion.map { |statement| "#{statement} #{column.null_handling(asc)}".strip }
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end
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def execute_criterion(criteria)
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Array(criteria).map do |criterion|
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if criterion.respond_to?(:call)
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criterion.call
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else
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criterion
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end
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end
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end
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def criteria_with_default_order
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if @criteria.none? { |attribute, _| attribute == 'id' }
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@criteria + [['id', false]]
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else
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@criteria
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end
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end
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end
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