Initial commit: svg backend

backend/app/models/scheme.py

@@ -0,0 +1,36 @@
+from datetime import datetime
+
+from sqlalchemy import BigInteger, DateTime, ForeignKey, Integer, String, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.base import Base
+
+
+class SchemeRecord(Base):
+    __tablename__ = "schemes"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    scheme_id: Mapped[str] = mapped_column(String(32), unique=True, index=True, nullable=False)
+
+    source_upload_id: Mapped[str] = mapped_column(
+        String(32),
+        ForeignKey("uploads.upload_id", ondelete="RESTRICT"),
+        nullable=False,
+        index=True,
+    )
+
+    name: Mapped[str] = mapped_column(String(512), nullable=False)
+    status: Mapped[str] = mapped_column(String(32), nullable=False, default="draft")
+    current_version_number: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
+    published_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+
+    normalized_elements_count: Mapped[int] = mapped_column(Integer, nullable=False)
+    normalized_seats_count: Mapped[int] = mapped_column(Integer, nullable=False)
+    normalized_groups_count: Mapped[int] = mapped_column(Integer, nullable=False)
+    normalized_sectors_count: Mapped[int] = mapped_column(Integer, nullable=False)
+
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True),
+        nullable=False,
+        server_default=func.now(),
+    )