Initial commit: svg backend

backend/alembic/versions/20260316_07_create_scheme_groups_table.py

@@ -0,0 +1,42 @@
+"""create scheme_groups table
+
+Revision ID: 20260316_07
+Revises: 20260316_06
+Create Date: 2026-03-16 16:05:00
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "20260316_07"
+down_revision = "20260316_06"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "scheme_groups",
+        sa.Column("id", sa.BigInteger(), primary_key=True, autoincrement=True),
+        sa.Column("group_record_id", sa.String(length=32), nullable=False),
+        sa.Column("scheme_id", sa.String(length=32), nullable=False),
+        sa.Column("scheme_version_id", sa.String(length=32), nullable=False),
+        sa.Column("element_id", sa.String(length=512), nullable=True),
+        sa.Column("group_id", sa.String(length=255), nullable=True),
+        sa.Column("name", sa.String(length=512), nullable=False),
+        sa.Column("classes_raw", sa.Text(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.ForeignKeyConstraint(["scheme_id"], ["schemes.scheme_id"], ondelete="RESTRICT"),
+        sa.ForeignKeyConstraint(["scheme_version_id"], ["scheme_versions.scheme_version_id"], ondelete="RESTRICT"),
+    )
+    op.create_index("ix_scheme_groups_group_record_id", "scheme_groups", ["group_record_id"], unique=True)
+    op.create_index("ix_scheme_groups_scheme_id", "scheme_groups", ["scheme_id"], unique=False)
+    op.create_index("ix_scheme_groups_scheme_version_id", "scheme_groups", ["scheme_version_id"], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_index("ix_scheme_groups_scheme_version_id", table_name="scheme_groups")
+    op.drop_index("ix_scheme_groups_scheme_id", table_name="scheme_groups")
+    op.drop_index("ix_scheme_groups_group_record_id", table_name="scheme_groups")
+    op.drop_table("scheme_groups")