Allowing manufacturer urls to be null

alembic/versions/0fec09fb6ae6_manufacturers_url_nullable.py

@@ -0,0 +1,37 @@
+"""manufacturers_url_nullable
+
+Revision ID: 0fec09fb6ae6
+Revises: 9a1c2f6e0b3d
+Create Date: 2026-09-04 23:05:18.990806
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "0fec09fb6ae6"
+down_revision: str | None = "9a1c2f6e0b3d"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    with op.batch_alter_table("manufacturers", schema=None) as batch_op:
+        batch_op.alter_column(
+            "url",
+            existing_type=sa.String(),
+            nullable=True,
+        )
+
+
+def downgrade() -> None:
+    op.execute("UPDATE manufacturers SET url = '' WHERE url IS NULL")
+    with op.batch_alter_table("manufacturers", schema=None) as batch_op:
+        batch_op.alter_column(
+            "url",
+            existing_type=sa.String(),
+            nullable=False,
+        )