Upload models.py

models.py

@@ -1,5 +1,5 @@
 # models.py
-from pydantic import BaseModel
+from pydantic import BaseModel, validator
 from typing import Optional, List
 
 class SendCodeRequest(BaseModel):
@@ -22,6 +22,13 @@ class UserRegister(BaseModel):
     region: Optional[str] = None
     intro: Optional[str] = None
 
+    # 🚀 增加后端拦截机制：自动把空字符串洗成 None，防止抛出 422 错误
+    @validator('age', pre=True)
+    def parse_age(cls, value):
+        if value == "" or value is None:
+            return None
+        return int(value)
+
 class UserLogin(BaseModel):
     account: str   
     password: str