initial commit after split

alembic/versions/f5a6b7c8d9e0_hierarchical_settings.py

@@ -0,0 +1,41 @@
+"""add generic settings hierarchy columns
+
+Revision ID: f5a6b7c8d9e0
+Revises: e4f5a6b7c8d9
+Create Date: 2026-06-16 15:15:00.000000
+"""
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+revision = "f5a6b7c8d9e0"
+down_revision = "e4f5a6b7c8d9"
+branch_labels = None
+depends_on = None
+
+_SETTINGS_DEFAULT = sa.text("'{}'")
+
+
+def _columns(inspector: sa.Inspector, table_name: str) -> set[str]:
+    return {column["name"] for column in inspector.get_columns(table_name)}
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    inspector = sa.inspect(bind)
+    tables = set(inspector.get_table_names())
+    for table_name in ("users", "groups", "campaigns"):
+        if table_name not in tables:
+            continue
+        if "settings" not in _columns(inspector, table_name):
+            op.add_column(table_name, sa.Column("settings", sa.JSON(), nullable=False, server_default=_SETTINGS_DEFAULT))
+
+
+def downgrade() -> None:
+    bind = op.get_bind()
+    inspector = sa.inspect(bind)
+    tables = set(inspector.get_table_names())
+    for table_name in ("campaigns", "groups", "users"):
+        if table_name in tables and "settings" in _columns(inspector, table_name):
+            op.drop_column(table_name, "settings")