backend: теперь универсальные вью принимают параметр для фильтрации

backend/migrations/versions/c42d8e7674e6_.py

@@ -0,0 +1,32 @@
+"""empty message
+
+Revision ID: c42d8e7674e6
+Revises: 02142c549a8c
+Create Date: 2022-11-19 02:48:49.436977
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'c42d8e7674e6'
+down_revision = '02142c549a8c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('characters', schema=None) as batch_op:
+        batch_op.create_unique_constraint(None, ['owner'])
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('characters', schema=None) as batch_op:
+        batch_op.drop_constraint(None, type_='unique')
+
+    # ### end Alembic commands ###