You can not select more than 25 topics
			Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
		
		
		
		
		
			
		
			
				
					
					
						
							30 lines
						
					
					
						
							1.0 KiB
						
					
					
				
			
		
		
	
	
							30 lines
						
					
					
						
							1.0 KiB
						
					
					
				class ChangeExercise1930Position < ActiveRecord::Migration[5.2]
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  def change
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    exs = Exercise.all.includes(:exercise_questions)
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    exs.each do |ex|
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      ex_questions = ex&.exercise_questions&.select(:id,:question_number,:exercise_id)&.order("question_number ASC")  #试卷的位置迁移
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      if ex_questions.present?
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        ex_questions.each_with_index do |q,index|
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          puts index
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          q_num = index + 1
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          if q.question_number.to_i != q_num
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            q.update_attributes(question_number: q_num)
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          end
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        end
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      end
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      ex_q_bank = ex&.exercise_bank&.exercise_bank_questions&.select(:id,:question_number,:exercise_bank_id,:shixun_id)&.order("question_number ASC") #试卷的习题库位置迁移
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      if ex_q_bank.present?
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        ex_q_bank.each_with_index do |q,index|
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          puts index
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          q_num_1 = index + 1
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          if q.question_number.to_i != q_num_1
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            q.update_attributes(question_number: q_num_1)
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          end
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        end
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      end
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    end
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  end
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end
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