obsolete.ChilliProject/lib/ar_condition.rb

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#-- encoding: UTF-8
#-- copyright
# ChiliProject is a project management system.
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#
# Copyright (C) 2010-2011 the ChiliProject Team
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#
# 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.
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#
# See doc/COPYRIGHT.rdoc for more details.
#++
class ARCondition
attr_reader :conditions
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def initialize(condition=nil)
@conditions = ['1=1']
add(condition) if condition
end
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def add(condition)
if condition.is_a?(Array)
@conditions.first << " AND (#{condition.first})"
@conditions += condition[1..-1]
elsif condition.is_a?(String)
@conditions.first << " AND (#{condition})"
else
raise "Unsupported #{condition.class} condition: #{condition}"
end
self
end
def <<(condition)
add(condition)
end
end