14 lines
377 B
Ruby
14 lines
377 B
Ruby
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class AlbumThumbnailMigration < ActiveRecord::Migration
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def self.up
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add_column :albums, :album_thumbnail_id, :integer
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add_index :albums, :album_thumbnail_id
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Album.find(:all).each do |album|
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album.update_attribute :album_thumbnail_id, (album.photos.first.id rescue nil)
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end
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end
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def self.down
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remove_column :albums, :album_thumbnail_id
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end
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end
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