16 lines
513 B
Ruby
16 lines
513 B
Ruby
class AddEnumerationsPosition < ActiveRecord::Migration
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def self.up
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add_column(:enumerations, :position, :integer, :default => 1, :null => false) unless Enumeration.column_names.include?('position')
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Enumeration.find(:all).group_by(&:opt).each_value do |enums|
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enums.each_with_index do |enum, i|
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# do not call model callbacks
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Enumeration.update_all "position = #{i+1}", {:id => enum.id}
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end
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end
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end
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def self.down
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remove_column :enumerations, :position
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end
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end
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