9 lines
336 B
9 lines
336 B
class ExerciseBankStandardAnswer < ApplicationRecord
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belongs_to :exercise_bank_question
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belongs_to :exercise_bank_choice
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#attr_accessible :answer_text
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scope :standard_by_ids, lambda { |s| where(exercise_bank_choice_id: s) }
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validates :answer_text, length: { maximum: 5000, too_long: "不能超过5000个字符" }
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end |