修复试题修改bug

apps/examination/examquestion/models.py

@@ -163,6 +163,7 @@ class ExamQuestionOption(models.Model):
 
     @classmethod
     def validate(cls, type, options, answer):
+        # 检查选项有效性
         if not options:
             raise CustomError(f'选项不能为空')
         if len(options) < 2:
@@ -170,32 +171,33 @@ class ExamQuestionOption(models.Model):
         if len(options) > 10:
             raise CustomError(f'选项不能多于10个')
         
-        answers = list(answer)
+        # 处理答案
+        answers = list(answer)  # 转换答案为列表，支持多个字符
         answers_len = len(answers)
+
+        # 单选题只能选择一个答案
         if type == ExamQuestion.SINGLE and answers_len > 1:
             raise CustomError(f'单选题答案只能有一个')
-        
+
+        # 验证答案中的字母是否合法
         alphabet = string.ascii_uppercase  # 包含 A 到 Z 的字母序列
-        cycle_alphabet = itertools.cycle(alphabet)  # 创建无限循环的字母序列
-        all_chars = list(itertools.islice(cycle_alphabet, answers_len))  # 截取所需长度的部分
+        valid_answers = set(alphabet[:len(options)])  # 只考虑合法的字母选项
 
-        if len(set(answers).difference(all_chars)) > 0:
-            raise CustomError(f'答案选项无效，可选项有：{all_chars}')
-        
+        if not all(answer in valid_answers for answer in answers):
+            raise CustomError(f'答案选项无效，可选项有：{", ".join(valid_answers)}')
+
+        # 生成验证数据
         validation_data = []
-        index = 0
-        for option in options:
+        for index, option in enumerate(options):
             item = {
                 'content': option,
                 'right': False
             }
-            for letter in answers:
-                if index == ord(letter) - ord('A'):
-                    item['right'] = True
-                    break
-            index += 1
+            if chr(ord('A') + index) in answers:  # 使用字母索引进行匹配
+                item['right'] = True
 
             validation_data.append(item)
+
         return validation_data
         
 

utils/format.py

@@ -119,6 +119,7 @@ class WordImporter():
                     question['type'] = text.split("【题型】")[-1].strip()
 
                 elif text.startswith("【答案】"):
+                    print("====>", text)
                     question['answer'] = text.split("【答案】")[-1].strip()
 
                 elif text.startswith("【解析】"):