parent
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commit
bbf087fa67
@ -0,0 +1,7 @@
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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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class ExerciseAnswer < ActiveRecord::Base
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#学生答题
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include Redmine::SafeAttributes
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belongs_to :user
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belongs_to :exercise_question
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belongs_to :exercise_choices
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end
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class ExerciseChoices < ActiveRecord::Base
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include Redmine::SafeAttributes
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belongs_to :exercise_question
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has_many :exercise_answers, :dependent => :destroy
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has_many :exercise_standard_answers, :dependent => :destroy
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end
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class ExerciseQuestion < ActiveRecord::Base
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include Redmine::SafeAttributes
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belongs_to :exercise
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has_many :exercise_choiceses, :order => "#{ExerciseChoices.table_name}.choice_position",:dependent => :destroy
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has_many :exercise_answers, :dependent => :destroy
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has_many :exercise_standard_answers, :dependent => :destroy
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end
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class ExerciseStandardAnswer < ActiveRecord::Base
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#标准答案
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include Redmine::SafeAttributes
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belongs_to :exercise_question
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belongs_to :exercise_choices
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end
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class ExerciseUser < ActiveRecord::Base
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include Redmine::SafeAttributes
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belongs_to :user
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belongs_to :exercise
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end
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class UserExercise < ActiveRecord::Migration
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def up
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create_table :user_exercise do |t|
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create_table :exercise_user do |t|
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t.integer :user_id
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t.integer :exercise_id
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t.integer :score
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t.datetime :start_at
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t.timestamps
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end
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end
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def down
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drop_table :user_exercise
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drop_table :exercise_user
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end
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end
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Loading…
Reference in new issue