Fix

app/db/base.py

@@ -5,3 +5,4 @@ from db.models.vehicle import Vehicle
 from db.models.carpart import CarPart
 from db.models.maintenancejob import MaintenanceJob
 from db.models.drivetask import DriveTask
+from db.models.auction import Auction

app/db/models/auction.py

@@ -8,8 +8,9 @@ class Auction(Base):
     
     initialPrice = Column(Integer, nullable=False)
     minimalBet = Column(Integer, nullable=False)
-    carID = Column(Integer, ForeignKey("car.Id"), nullable=False)
+    carID = Column(Integer, ForeignKey("vehicle.Id"), nullable=False)
     vehicle = relationship("Vehicle", back_populates="auction")
+    creatorId = Column(Integer, ForeignKey("user.Id"), nullable=False)
     CreatedBy = relationship("User", back_populates="auctions")
     dateStart = Column(DateTime, nullable=False)
     dateEnd = Column(DateTime, nullable=False)

app/db/models/maintenancejob.py

@@ -7,7 +7,7 @@ class MaintenanceJob(Base):
     Id = Column(Integer, primary_key=True, index=True)
     # a list of weak entities of class CarPart
     CarParts = relationship("CarPart", back_populates="parent")
-    CreatedBy = relationship("MaintenancePerson", back_populates="maintenanceJobs")
+    CreatedBy = relationship("User", back_populates="maintenanceJobs")
     Description = Column(String, nullable=False)
     Date = Column(DateTime, nullable=False)
     MaintenanceWorker = Column(ForeignKey("user.Id"), nullable=False)

app/db/models/user.py

@@ -18,14 +18,14 @@ class User(Base):
     
     
     #Admin-specific relationships
-    CreatedAuctions = relationship("Auction", back_populates="CreatedBy")
+    auctions = relationship("Auction", back_populates="CreatedBy")
     #Driver-specific relationships
     DrivingLicenseNumber = Column(String, nullable=True)
     AssignedVehicle = Column(Integer, ForeignKey("vehicle.Id"), nullable=True)
-    DriveTasks = relationship("DriveTask", back_populates="CreatedBy")
+    driveTasks = relationship("DriveTask", back_populates="CreatedBy")
     vehicle = relationship("Vehicle", back_populates="driver")
     #MaintenancePerson-specific relationships
     maintenanceJobs = relationship("MaintenanceJob", back_populates="CreatedBy")
     #FuelingPerson-specific relationships
-    fuelingJobs = relationship("FuelingJob", back_populates="CreatedBy")
+    #fuelingJobs = relationship("FuelingJob", back_populates="CreatedBy")
 

app/db/models/vehicle.py

@@ -22,3 +22,5 @@ class Vehicle(Base):
     Capacity = Column(Integer, nullable=False)
     DriverHistory = Column(ARRAY(Integer), nullable=True)
     driver = relationship("User", back_populates="vehicle")
+    auction = relationship("Auction", back_populates="vehicle")
+