Large database migration

formula10/database/model/db_season_guess.py

@@ -1,4 +1,3 @@
-from typing import Any, List
 from sqlalchemy import ForeignKey, String
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
@@ -12,56 +11,24 @@ class DbSeasonGuess(db.Model):
     A collection of bonus guesses for the entire season.
     """
     __tablename__ = "seasonguess"
-    __csv_header__ = ["user_name", "hot_take", "p2_team_name",
-                      "overtake_driver_name", "dnf_driver_name", "gained_driver_name", "lost_driver_name",
-                      "team_winners_driver_names_json", "podium_drivers_driver_names_json"]
 
-    def __init__(self, *, user_name: str, team_winners_driver_names_json: str, podium_drivers_driver_names_json: str):
-        self.user_name = user_name  # Primary key
+    def __init__(self, *, user_id: int):
+        self.user_id = user_id  # Primary key
 
-        self.team_winners_driver_names_json = team_winners_driver_names_json
-        self.podium_drivers_driver_names_json = podium_drivers_driver_names_json
-
-    @classmethod
-    def from_csv(cls, row: List[str]):
-        db_season_guess: DbSeasonGuess = cls(user_name=str(row[0]),
-                                             team_winners_driver_names_json=str(row[7]),
-                                             podium_drivers_driver_names_json=str(row[8]))
-        db_season_guess.hot_take = str(row[1])
-        db_season_guess.p2_team_name = str(row[2])
-        db_season_guess.overtake_driver_name = str(row[3])
-        db_season_guess.dnf_driver_name = str(row[4])
-        db_season_guess.gained_driver_name = str(row[5])
-        db_season_guess.lost_driver_name = str(row[6])
-        return db_season_guess
-
-    def to_csv(self) -> List[Any]:
-        return [
-            self.user_name,
-            self.hot_take,
-            self.p2_team_name,
-            self.overtake_driver_name,
-            self.dnf_driver_name,
-            self.gained_driver_name,
-            self.lost_driver_name,
-            self.team_winners_driver_names_json,
-            self.podium_drivers_driver_names_json
-        ]
-
-    user_name: Mapped[str] = mapped_column(ForeignKey("user.name"), primary_key=True)
+    user_id: Mapped[int] = mapped_column(ForeignKey("user.id"), primary_key=True)
     hot_take: Mapped[str | None] = mapped_column(String(512), nullable=True)
-    p2_team_name: Mapped[str | None] = mapped_column(ForeignKey("team.name"), nullable=True)
-    overtake_driver_name: Mapped[str | None] = mapped_column(ForeignKey("driver.name"), nullable=True)
-    dnf_driver_name: Mapped[str | None] = mapped_column(ForeignKey("driver.name"), nullable=True)
-    gained_driver_name: Mapped[str | None] = mapped_column(ForeignKey("driver.name"), nullable=True)
-    lost_driver_name: Mapped[str | None] = mapped_column(ForeignKey("driver.name"), nullable=True)
-    team_winners_driver_names_json: Mapped[str] = mapped_column(String(1024))
-    podium_drivers_driver_names_json: Mapped[str] = mapped_column(String(1024))
+    p2_team_id: Mapped[int | None] = mapped_column(ForeignKey("team.id"), nullable=True)
+    overtake_driver_id: Mapped[int | None] = mapped_column(ForeignKey("driver.id"), nullable=True)
+    dnf_driver_id: Mapped[int | None] = mapped_column(ForeignKey("driver.id"), nullable=True)
+    gained_driver_id: Mapped[int | None] = mapped_column(ForeignKey("driver.id"), nullable=True)
+    lost_driver_id: Mapped[int | None] = mapped_column(ForeignKey("driver.id"), nullable=True)
+    team_winners_driver_ids_json: Mapped[str] = mapped_column(String(1024))
+    podium_drivers_driver_ids_json: Mapped[str] = mapped_column(String(1024))
 
     # Relationships
-    user: Mapped[DbUser] = relationship("DbUser", foreign_keys=[user_name])
-    p2_team: Mapped[DbTeam | None] = relationship("DbTeam", foreign_keys=[p2_team_name])
-    overtake_driver: Mapped[DbDriver | None] = relationship("DbDriver", foreign_keys=[overtake_driver_name])
-    dnf_driver: Mapped[DbDriver | None] = relationship("DbDriver", foreign_keys=[dnf_driver_name])
-    gained_driver: Mapped[DbDriver | None] = relationship("DbDriver", foreign_keys=[gained_driver_name])
-    lost_driver: Mapped[DbDriver | None] = relationship("DbDriver", foreign_keys=[lost_driver_name])
+    user: Mapped[DbUser] = relationship("DbUser", foreign_keys=[user_id])
+    p2_team: Mapped[DbTeam | None] = relationship("DbTeam", foreign_keys=[p2_team_id])
+    overtake_driver: Mapped[DbDriver | None] = relationship("DbDriver", foreign_keys=[overtake_driver_id])
+    dnf_driver: Mapped[DbDriver | None] = relationship("DbDriver", foreign_keys=[dnf_driver_id])
+    gained_driver: Mapped[DbDriver | None] = relationship("DbDriver", foreign_keys=[gained_driver_id])
+    lost_driver: Mapped[DbDriver | None] = relationship("DbDriver", foreign_keys=[lost_driver_id])