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class AddSubnetAndDomainToHostGroups < ActiveRecord::Migration
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def self.up
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add_column :hostgroups, :subnet_id, :integer unless column_exists? :hostgroups, :subnet_id
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add_column :hostgroups, :domain_id, :integer unless column_exists? :hostgroups, :domain_id
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end
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def self.down
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remove_column :hostgroups, :subnet_id if column_exists? :hostgroups, :subnet_id
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remove_column :hostgroups, :domain_id if column_exists? :hostgroups, :domain_id
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end
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end
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