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class ExtendUserRole < ActiveRecord::Migration
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def up
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remove_foreign_key 'user_roles', :name => 'user_roles_user_id_fk'
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add_column :user_roles, :owner_type, :string, :default => 'User', :null => false
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rename_column :user_roles, :user_id, :owner_id
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add_index :user_roles, :owner_type
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add_index :user_roles, :owner_id
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add_index :user_roles, [:owner_id, :owner_type]
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change_column :user_roles, :owner_id, :integer, :null => false
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end
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def down
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remove_index :user_roles, [:owner_id, :owner_type]
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remove_index :user_roles, :owner_id
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remove_index :user_roles, :owner_type
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rename_column :user_roles, :owner_id, :user_id
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remove_column :user_roles, :owner_type
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add_foreign_key 'user_roles', 'users', :name => 'user_roles_user_id_fk'
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end
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end
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