调整

5 years ago · 58259feb48
parent 1df37b0ca6
commit 58259feb48
1 changed files with 1 additions and 1 deletions
--- a/app/models/homework_common.rb
+++ b/app/models/homework_common.rb
@ -170,7 +170,7 @@ class HomeworkCommon < ApplicationRecord
  #删除时更新题库中的引用数
  def update_homework_bank_quotes
    old_bank = self.homework_bank
-    old_bank.update_attributes(quotes: (old_bank.quotes - 1) > 0 ? (old_bank.quotes - 1) : 0, homework_common_id: nil)
+    old_bank.update_attributes(quotes: (old_bank.quotes - 1) > 0 ? (old_bank.quotes - 1) : 0, homework_common_id: nil) if old_bank.present?
  end
  # 查重是否有新结果