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class AddManagedToHosts < ActiveRecord::Migration[4.2]
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def up
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add_column :hosts, :managed, :boolean
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Host.reset_column_information
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for host in Host.unscoped.all
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host.update_attribute(:managed, (!!host.operatingsystem_id && !!host.architecture_id && (!!host.ptable_id || !host.disk.empty?)))
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end
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end
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def down
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remove_column :hosts, :managed
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end
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end
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