Initial commit - copied workspace after database cleanup

server/alembic/versions/b5a6c3d4e7f8_make_file_hash_not_null.py

@@ -0,0 +1,40 @@
+"""Make conversions.file_hash NOT NULL
+
+Revision ID: b5a6c3d4e7f8
+Revises: 2b627d0885c3
+Create Date: 2025-10-06 21:05:00.000000
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = "b5a6c3d4e7f8"
+down_revision: Union[str, None] = "2b627d0885c3"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Ensure no NULLs remain before altering nullability
+    op.execute("UPDATE conversions SET file_hash = '' WHERE file_hash IS NULL")
+    op.alter_column(
+        "conversions",
+        "file_hash",
+        existing_type=sa.String(length=64),
+        nullable=False,
+        existing_nullable=True,
+    )
+
+
+def downgrade() -> None:
+    op.alter_column(
+        "conversions",
+        "file_hash",
+        existing_type=sa.String(length=64),
+        nullable=True,
+        existing_nullable=False,
+    )