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class UpdateAuditsTable < ActiveRecord::Migration
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def up
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unless Audit.column_names.include?("comment")
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add_column :audits, :comment, :string, :limit => 255
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add_column :audits, :auditable_parent_id, :integer
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add_column :audits, :auditable_parent_type, :string, :limit => 255
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add_index :audits, [:auditable_parent_id, :auditable_parent_type], :name => 'auditable_parent_index'
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end
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end
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def down
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remove_column :audits, :comment
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remove_column :audits, :auditable_parent_id
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remove_column :audits, :auditable_parent_type
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end
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end
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