feat(db): all domain models, initial Alembic migration (32 tables), seed script (8 districts, 89 regions, roles)

backend/app/models/region_card.py

@@ -0,0 +1,46 @@
+"""Модели карточки региона."""
+from datetime import datetime
+
+from sqlalchemy import DateTime, ForeignKey, Integer, String, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.session import Base
+from app.models.enums import LinkType
+from app.models.types import enum_col
+
+
+class RegionCard(Base):
+    __tablename__ = "region_cards"
+
+    region_id: Mapped[int] = mapped_column(ForeignKey("regions.id", ondelete="CASCADE"), primary_key=True)
+    population: Mapped[int | None] = mapped_column(Integer)
+    head_user_id: Mapped[int | None] = mapped_column(ForeignKey("users.id"))
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
+    )
+
+
+class RegionLink(Base):
+    __tablename__ = "region_links"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    region_id: Mapped[int] = mapped_column(ForeignKey("regions.id", ondelete="CASCADE"))
+    type: Mapped[LinkType] = mapped_column(enum_col(LinkType))
+    title: Mapped[str | None] = mapped_column(String(200))
+    url: Mapped[str] = mapped_column(String(500))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
+    )
+
+
+class RegionCardHistory(Base):
+    __tablename__ = "region_card_history"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    region_id: Mapped[int] = mapped_column(ForeignKey("regions.id", ondelete="CASCADE"))
+    field: Mapped[str] = mapped_column(String(100))
+    old_value: Mapped[str | None] = mapped_column(String(1000))
+    new_value: Mapped[str | None] = mapped_column(String(1000))
+    changed_by: Mapped[int | None] = mapped_column(ForeignKey("users.id"))
+    changed_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())