Chris@909: # Redmine - project management software Chris@909: # Copyright (C) 2006-2011 Jean-Philippe Lang Chris@909: # Chris@909: # This program is free software; you can redistribute it and/or Chris@909: # modify it under the terms of the GNU General Public License Chris@909: # as published by the Free Software Foundation; either version 2 Chris@909: # of the License, or (at your option) any later version. Chris@909: # Chris@909: # This program is distributed in the hope that it will be useful, Chris@909: # but WITHOUT ANY WARRANTY; without even the implied warranty of Chris@909: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Chris@909: # GNU General Public License for more details. Chris@909: # Chris@909: # You should have received a copy of the GNU General Public License Chris@909: # along with this program; if not, write to the Free Software Chris@909: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. Chris@909: Chris@909: class ARCondition Chris@909: attr_reader :conditions Chris@909: Chris@909: def initialize(condition=nil) Chris@909: @conditions = ['1=1'] Chris@909: add(condition) if condition Chris@909: end Chris@909: Chris@909: def add(condition) Chris@909: if condition.is_a?(Array) Chris@909: @conditions.first << " AND (#{condition.first})" Chris@909: @conditions += condition[1..-1] Chris@909: elsif condition.is_a?(String) Chris@909: @conditions.first << " AND (#{condition})" Chris@909: else Chris@909: raise "Unsupported #{condition.class} condition: #{condition}" Chris@909: end Chris@909: self Chris@909: end Chris@909: Chris@909: def <<(condition) Chris@909: add(condition) Chris@909: end Chris@909: end