Initial commit: svg backend

backend/app/models/scheme_group.py

@@ -0,0 +1,38 @@
+from datetime import datetime
+
+from sqlalchemy import BigInteger, DateTime, ForeignKey, String, Text, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.base import Base
+
+
+class SchemeGroupRecord(Base):
+    __tablename__ = "scheme_groups"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    group_record_id: Mapped[str] = mapped_column(String(32), unique=True, index=True, nullable=False)
+
+    scheme_id: Mapped[str] = mapped_column(
+        String(32),
+        ForeignKey("schemes.scheme_id", ondelete="RESTRICT"),
+        nullable=False,
+        index=True,
+    )
+
+    scheme_version_id: Mapped[str] = mapped_column(
+        String(32),
+        ForeignKey("scheme_versions.scheme_version_id", ondelete="RESTRICT"),
+        nullable=False,
+        index=True,
+    )
+
+    element_id: Mapped[str | None] = mapped_column(String(512), nullable=True)
+    group_id: Mapped[str | None] = mapped_column(String(255), nullable=True)
+    name: Mapped[str] = mapped_column(String(512), nullable=False)
+    classes_raw: Mapped[str | None] = mapped_column(Text, nullable=True)
+
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True),
+        nullable=False,
+        server_default=func.now(),
+    )