feat: teacher-student relation

apps/user/cms_relation.py

@@ -34,26 +34,43 @@ class CmsRelationSerializer(serializers.ModelSerializer):
 
 
 class CmsRelationWriteSerializer(serializers.ModelSerializer):
-    """新增 / 编辑：teacher 必须是医生、student 必须是学生；医院管理员限本院。"""
-    teacher = serializers.PrimaryKeyRelatedField(queryset=User.objects.filter(role_type='doctor'))
-    student = serializers.PrimaryKeyRelatedField(queryset=User.objects.filter(role_type='student'))
+    """新增 / 编辑：入参用**带教老师手机号 / 学生手机号**；按手机号解析为用户
+    （带教老师须 doctor、学生须 student）；医院管理员限本院。"""
+    teacher_phone = serializers.CharField(write_only=True, required=False, help_text='带教老师手机号（新增必填）')
+    student_phone = serializers.CharField(write_only=True, required=False, help_text='学生手机号（新增必填）')
 
     class Meta:
         model = TeacherStudentRelation
-        fields = ['teacher', 'student', 'relation_type', 'status']
+        fields = ['teacher_phone', 'student_phone', 'relation_type', 'status']
 
     def validate(self, attrs):
         actor = self.context['request'].user
-        teacher = attrs.get('teacher') or (self.instance.teacher if self.instance else None)
-        student = attrs.get('student') or (self.instance.student if self.instance else None)
+        creating = self.instance is None
+        t_phone = (attrs.pop('teacher_phone', None) or '').strip()
+        s_phone = (attrs.pop('student_phone', None) or '').strip()
+
+        if creating and (not t_phone or not s_phone):
+            raise AppError('CMS_VALIDATION_ERROR', '带教老师手机号和学生手机号均必填', status_code=400)
+
+        # 按手机号解析（带教老师须 doctor、学生须 student）；编辑时未传则沿用原值
+        teacher = self.instance.teacher if self.instance else None
+        student = self.instance.student if self.instance else None
+        if t_phone:
+            teacher = User.objects.filter(phone=t_phone, role_type='doctor').first()
+            if teacher is None:
+                raise AppError('CMS_REL_TEACHER_NOT_FOUND', f'带教老师不存在或非医生：{t_phone}', status_code=400)
+        if s_phone:
+            student = User.objects.filter(phone=s_phone, role_type='student').first()
+            if student is None:
+                raise AppError('CMS_REL_STUDENT_NOT_FOUND', f'学生不存在或非学生：{s_phone}', status_code=400)
         if teacher is None or student is None:
-            raise AppError('CMS_VALIDATION_ERROR', '带教医生和学生均必填', status_code=400)
+            raise AppError('CMS_VALIDATION_ERROR', '带教老师和学生均必填', status_code=400)
 
         if not is_super(actor):
             if not actor.institution_id:
                 raise AppError('CMS_NO_INSTITUTION', '当前医院管理员无所属机构', status_code=403)
             if teacher.institution_id != actor.institution_id:
-                raise AppError('CMS_REL_SCOPE_FORBIDDEN', '带教医生不属于本院', status_code=403)
+                raise AppError('CMS_REL_SCOPE_FORBIDDEN', '带教老师不属于本院', status_code=403)
             if student.institution_id != actor.institution_id:
                 raise AppError('CMS_REL_SCOPE_FORBIDDEN', '学生不属于本院', status_code=403)
 
@@ -62,6 +79,9 @@ class CmsRelationWriteSerializer(serializers.ModelSerializer):
             dup = dup.exclude(pk=self.instance.pk)
         if dup.exists():
             raise AppError('CMS_REL_EXISTS', '该师生关系已存在', status_code=400)
+
+        attrs['teacher'] = teacher
+        attrs['student'] = student
         return attrs