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root / db / migrate / 104_add_projects_lft_and_rgt.rb @ 442:753f1380d6bc

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class AddProjectsLftAndRgt < ActiveRecord::Migration
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  def self.up
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    add_column :projects, :lft, :integer
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    add_column :projects, :rgt, :integer
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  end
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  def self.down


    		
  

  

    
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    remove_column :projects, :lft


    		
  

  

    
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    remove_column :projects, :rgt


    		
  

  

    
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  end


    		
  

  

    
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end