obsolete.ChilliProject/db/migrate/072_add_enumerations_positi...

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2011-10-29 16:19:11 +04:00
#-- 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 AddEnumerationsPosition < ActiveRecord::Migration
def self.up
add_column(:enumerations, :position, :integer, :default => 1) unless Enumeration.column_names.include?('position')
Enumeration.find(:all).group_by(&:opt).each do |opt, enums|
enums.each_with_index do |enum, i|
# do not call model callbacks
Enumeration.update_all "position = #{i+1}", {:id => enum.id}
end
end
end
def self.down
remove_column :enumerations, :position
end
end