10 lines
232 B
Ruby
10 lines
232 B
Ruby
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class AddParentIdToEnumerations < ActiveRecord::Migration
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def self.up
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add_column :enumerations, :parent_id, :integer, :null => true, :default => nil
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end
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def self.down
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remove_column :enumerations, :parent_id
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end
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end
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