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

backend/app/models/broadcast.py

@@ -0,0 +1,65 @@
+"""Модели рассылок."""
+from datetime import datetime
+
+from sqlalchemy import (
+    DateTime,
+    ForeignKey,
+    JSON,
+    String,
+    Text,
+    UniqueConstraint,
+    func,
+)
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.session import Base
+from app.models.enums import BroadcastStatus, BroadcastType, RecipientStatus
+from app.models.types import enum_col
+
+
+class BroadcastTemplate(Base):
+    __tablename__ = "broadcast_templates"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    code: Mapped[str] = mapped_column(String(64), unique=True)
+    name: Mapped[str] = mapped_column(String(200))
+    type: Mapped[BroadcastType] = mapped_column(enum_col(BroadcastType))
+    body_template: Mapped[str] = mapped_column(Text)
+    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 Broadcast(Base):
+    __tablename__ = "broadcasts"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    template_id: Mapped[int | None] = mapped_column(ForeignKey("broadcast_templates.id"))
+    type: Mapped[BroadcastType] = mapped_column(enum_col(BroadcastType))
+    subject: Mapped[str | None] = mapped_column(String(300))
+    body: Mapped[str | None] = mapped_column(Text)
+    audience_filter: Mapped[dict | None] = mapped_column(JSON)
+    status: Mapped[BroadcastStatus] = mapped_column(
+        enum_col(BroadcastStatus), default=BroadcastStatus.DRAFT
+    )
+    scheduled_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    started_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    finished_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    created_by: Mapped[int | None] = mapped_column(ForeignKey("users.id"))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+
+class BroadcastRecipient(Base):
+    __tablename__ = "broadcast_recipients"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    broadcast_id: Mapped[int] = mapped_column(ForeignKey("broadcasts.id", ondelete="CASCADE"))
+    user_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"))
+    status: Mapped[RecipientStatus] = mapped_column(
+        enum_col(RecipientStatus), default=RecipientStatus.PENDING
+    )
+    sent_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    error: Mapped[str | None] = mapped_column(Text)
+
+    __table_args__ = (UniqueConstraint("broadcast_id", "user_id", name="uq_broadcast_user"),)