feat: work shifts by QR codes

models/auth.py

@@ -5,6 +5,7 @@ from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from enums.user import UserRole
 from models.base import BaseModel
+from models.work_shifts import WorkShift
 
 if TYPE_CHECKING:
     from models.payroll import PayRate, PaymentRecord
@@ -91,6 +92,12 @@ class User(BaseModel):
         uselist=True,
         foreign_keys="PaymentRecord.user_id"
     )
+    work_shifts: Mapped[list["WorkShift"]] = relationship(
+        "WorkShift",
+        back_populates="user",
+        uselist=True,
+        foreign_keys="WorkShift.user_id"
+    )
 
 
 class Position(BaseModel):

models/work_shifts.py

@@ -0,0 +1,30 @@
+from datetime import datetime
+from typing import TYPE_CHECKING
+
+from sqlalchemy import ForeignKey
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from models.base import BaseModel
+
+if TYPE_CHECKING:
+    from models import User
+
+
+class WorkShift(BaseModel):
+    __tablename__ = "work_shifts"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    started_at: Mapped[datetime] = mapped_column(
+        nullable=False,
+    )
+    finished_at: Mapped[datetime] = mapped_column(
+        nullable=True,
+    )
+
+    user_id: Mapped[int] = mapped_column(
+        ForeignKey("users.id"),
+    )
+    user: Mapped["User"] = relationship(
+        "User",
+        back_populates="work_shifts",
+    )