删除了文档

schemas/student.py

@@ -1,18 +1,40 @@
 from pydantic import BaseModel
 from datetime import date
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 class StudentCreate(BaseModel):
-    student_no:str|None = None
-    student_name: str
-    class_id: int
-    consultant_id: int | None = None
-    native_place: str | None = None
-    graduation_school: str | None = None
-    major: str | None = None
+    student_no: str | None = Field(default=None, min_length=1, max_length=50)
+    student_name: str = Field(min_length=1, max_length=50)
+    class_id: int = Field(gt=0)
+    consultant_id: int | None = Field(default=None, gt=0)
+    native_place: str | None = Field(default=None, max_length=100)
+    graduation_school: str | None = Field(default=None, max_length=100)
+    major: str | None = Field(default=None, max_length=100)
     enrollment_date: date
     graduation_date: date | None = None
-    education: str | None = None
-    age: int
-    gender: str
+    education: str | None = Field(default=None, max_length=50)
+    age: int = Field(ge=0, le=150)
+    gender: str = Field(min_length=1, max_length=10)
 
+    @model_validator(mode="after")
+    def check_dates(self):
+        # 3. 新增时两个日期都已确定，可以直接校验先后顺序。
+        if self.graduation_date and self.graduation_date < self.enrollment_date:
+            raise ValueError("毕业日期不能早于入学日期")
+        return self
+
+class StudentUpdate(BaseModel):
+    # 1. 默认值为 None 是为了允许省略字段，不代表每个字段都能清空。
+    student_no: str | None = Field(default=None, min_length=1, max_length=50)
+    student_name: str | None = Field(default=None, min_length=1, max_length=50)
+    class_id: int | None = Field(default=None, gt=0)
+    consultant_id: int | None = Field(default=None, gt=0)
+    native_place: str | None = Field(default=None, max_length=100)
+    graduation_school: str | None = Field(default=None, max_length=100)
+    major: str | None = Field(default=None, max_length=100)
+    enrollment_date: date | None = None
+    graduation_date: date | None = None
+    education: str | None = Field(default=None, max_length=50)
+    age: int | None = Field(default=None, ge=0, le=150)
+    gender: str | None = Field(default=None, min_length=1, max_length=10)