11 lines
353 B
11 lines
353 B
6 years ago
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class ExerciseStandardAnswer < ApplicationRecord
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#标准答案
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belongs_to :exercise_question, optional:true
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belongs_to :exercise_choice, optional:true
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scope :find_standard_answer_custom, lambda {|k,v| where("#{k} = ?",v)} #根据传入的参数查找问题
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scope :standard_by_ids, lambda { |s| where(exercise_choice_id: s) }
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end
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