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10 lines
238 B
10 lines
238 B
6 years ago
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class AddExecTimeToChallenge < ActiveRecord::Migration[5.2]
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def change
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add_column :challenges, :exec_time, :integer
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Shixun.find_each do |shixun|
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shixun.challenges.update_all(exec_time: shixun.exec_time)
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end
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end
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end
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