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class AddOsFamilyToMedia < ActiveRecord::Migration
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def up
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add_column :media, :os_family, :string
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Medium.reset_column_information
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Medium.unscoped.all.each do |m|
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family = m.operatingsystems.map(&:family).uniq.first rescue nil
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m.update_attribute(:os_family, family) if family
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end
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end
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def down
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remove_column :media, :os_family
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end
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end
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