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class CreateHackUserLastestCodes < ActiveRecord::Migration[5.2]
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def change
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create_table :hack_user_lastest_codes do |t|
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t.references :user
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t.references :hack
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t.text :code
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t.timestamps
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end
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add_index :hack_user_lastest_codes, [:user_id, :hack_id], unique: true
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end
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end
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