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root / db / migrate / 072_add_enumerations_position.rb @ 1298:4f746d8966dd

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1 0:513646585e45 Chris 
class AddEnumerationsPosition < ActiveRecord::Migration
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  def self.up
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    add_column(:enumerations, :position, :integer, :default => 1) unless Enumeration.column_names.include?('position')
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    Enumeration.all.group_by(&:opt).each do |opt, 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