Проверка

backend/models.py

@@ -0,0 +1,23 @@
+from sqlalchemy import Column, Integer, String, ForeignKey
+from sqlalchemy.orm import relationship
+from .database import Base
+
+
+class Employee(Base):
+    __tablename__ = "employees"
+
+    id = Column(Integer, primary_key=True, index=True)
+    last_name = Column(String, index=True)
+    # другие поля...
+
+    requests = relationship("Request", back_populates="employee")
+
+
+class Request(Base):
+    __tablename__ = "requests"
+
+    id = Column(Integer, primary_key=True, index=True)
+    employee_id = Column(Integer, ForeignKey("employees.id"))
+    # другие поля...
+
+    employee = relationship("Employee", back_populates="requests")