refac

backend/open_webui/migrations/versions/4c5ce3d2f27f_add_context_summary_to_chat_message.py

@@ -0,0 +1,37 @@
+"""add context summary to chat message
+
+Revision ID: 4c5ce3d2f27f
+Revises: 3ff2c63645b8
+Create Date: 2026-06-18 23:48:08.310063
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '4c5ce3d2f27f'
+down_revision: Union[str, None] = '3ff2c63645b8'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    columns = {column['name'] for column in inspector.get_columns('chat_message')}
+
+    if 'context_summary' not in columns:
+        op.add_column('chat_message', sa.Column('context_summary', sa.Text(), nullable=True))
+
+
+def downgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    columns = {column['name'] for column in inspector.get_columns('chat_message')}
+
+    if 'context_summary' in columns:
+        op.drop_column('chat_message', 'context_summary')