refac

backend/open_webui/migrations/versions/7b3f2a9c1d4e_add_memory_kind.py

@@ -0,0 +1,44 @@
+"""add memory type
+
+Revision ID: 7b3f2a9c1d4e
+Revises: 4c5ce3d2f27f
+Create Date: 2026-06-25 00:00:00.000000
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision: str = '7b3f2a9c1d4e'
+down_revision: Union[str, None] = '4c5ce3d2f27f'
+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('memory')}
+    indexes = {index['name'] for index in inspector.get_indexes('memory')}
+
+    if 'type' not in columns:
+        op.add_column('memory', sa.Column('type', sa.String(), server_default='context', nullable=False))
+
+    if 'ix_memory_kind' not in indexes:
+        op.create_index('ix_memory_kind', 'memory', ['type'])
+
+
+def downgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    columns = {column['name'] for column in inspector.get_columns('memory')}
+    indexes = {index['name'] for index in inspector.get_indexes('memory')}
+
+    if 'ix_memory_kind' in indexes:
+        op.drop_index('ix_memory_kind', table_name='memory')
+
+    if 'type' in columns:
+        op.drop_column('memory', 'type')