8 lines
346 B
Ruby
8 lines
346 B
Ruby
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class Exercise < ActiveRecord::Base
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include Redmine::SafeAttributes
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belongs_to :user
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has_many :exercise_questions, :dependent => :destroy,:order => "#{ExerciseQuestion.table_name}.question_number"
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has_many :exercise_users, :dependent => :destroy
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has_many :users, :through => :exercise_users #该文件被哪些用户提交答案过
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end
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