就业模块修改

model/wl_emp_model.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, DateTime, ForeignKey, Integer, String, func
+from sqlalchemy import Column, DateTime, ForeignKey, Integer, String
 from sqlalchemy.orm import relationship
 
 from database import Base
@@ -9,8 +9,8 @@ class Emp(Base):
 
     # 学号做主键，同时做外键指向学生表，长度跟 Student.stu_no 保持一致
     stu_no = Column(String(20), ForeignKey('wl_student.stu_no'), primary_key=True)
-    emp_open_time = Column(DateTime, default="2026-11-30 18:18:18")
-    offer_time = Column(DateTime, default=func.now())
+    emp_open_time = Column(DateTime)
+    offer_time = Column(DateTime)
     company_name = Column(String(100), nullable=False)
     salary = Column(Integer, nullable=False, default=15000)
 
@@ -21,3 +21,4 @@ class Emp(Base):
 
     def __repr__(self):
         return f"<Emp(stu_no={self.stu_no}, company='{self.company_name}')>"
+