Refactor database schema and update event media

handling

server/alembic/versions/c571e4214528_refactor_event_eventmedia_relation.py

@@ -0,0 +1,46 @@
+"""Refactor Event/EventMedia relation
+
+Revision ID: c571e4214528
+Revises: d490cbfdea65
+Create Date: 2025-07-04 06:08:57.004474
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision: str = 'c571e4214528'
+down_revision: Union[str, None] = 'd490cbfdea65'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_foreign_key(None, 'clients', 'client_groups', ['group_id'], ['id'])
+    op.drop_constraint(op.f('event_media_ibfk_1'), 'event_media', type_='foreignkey')
+    op.drop_column('event_media', 'event_id')
+    op.add_column('events', sa.Column('event_media_id', sa.Integer(), nullable=True))
+    op.alter_column('events', 'group_id',
+               existing_type=mysql.INTEGER(display_width=11),
+               nullable=False)
+    op.create_foreign_key(None, 'events', 'event_media', ['event_media_id'], ['id'])
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'events', type_='foreignkey')
+    op.alter_column('events', 'group_id',
+               existing_type=mysql.INTEGER(display_width=11),
+               nullable=True)
+    op.drop_column('events', 'event_media_id')
+    op.add_column('event_media', sa.Column('event_id', mysql.INTEGER(display_width=11), autoincrement=False, nullable=False))
+    op.create_foreign_key(op.f('event_media_ibfk_1'), 'event_media', 'events', ['event_id'], ['id'])
+    op.drop_constraint(None, 'clients', type_='foreignkey')
+    # ### end Alembic commands ###