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class UpdateExerciseDefaultValue < ActiveRecord::Migration[5.2]
def change
ExerciseUser.where(objective_score: -1.0).update_all(objective_score: 0.0)
# ExerciseUser.where(subjective_score: -1.0).update_all(subjective_score: 0.0) #主观题默认分数为-1，不需修改
# ExerciseAnswer.where(score: -1.0).update_all(score: 0.0) #6.10 修改，方便判断主观题是否
end
