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

backend/app/models/event.py

@@ -0,0 +1,33 @@
+"""Модели календаря событий."""
+from datetime import datetime
+
+from sqlalchemy import DateTime, ForeignKey, String, Text, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.session import Base
+
+
+class Event(Base):
+    __tablename__ = "events"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    title: Mapped[str] = mapped_column(String(300))
+    description: Mapped[str | None] = mapped_column(Text)
+    starts_at: Mapped[datetime] = mapped_column(DateTime(timezone=True))
+    ends_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    location: Mapped[str | None] = mapped_column(String(300))
+    created_by: Mapped[int | None] = mapped_column(ForeignKey("users.id"))
+    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 EventReminder(Base):
+    __tablename__ = "event_reminders"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    event_id: Mapped[int] = mapped_column(ForeignKey("events.id", ondelete="CASCADE"))
+    user_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"))
+    remind_at: Mapped[datetime] = mapped_column(DateTime(timezone=True))
+    sent_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))