From 9c2e410bfb12e1f550a7030faef41c63bdd5ea6a Mon Sep 17 00:00:00 2001
From: Michal Konečný <mkonecny@redhat.com>
Date: Feb 21 2022 13:09:34 +0000
Subject: Fix for mysql alembic migration


In case of MySQL database when column is altered the existing type needs to be
specified.

Signed-off-by: Michal Konečný <mkonecny@redhat.com>

---

diff --git a/alembic/versions/c0bffa4e8fbc_token_if_in_commit_flag_can_be_null.py b/alembic/versions/c0bffa4e8fbc_token_if_in_commit_flag_can_be_null.py
index 058d277..daac18c 100644
--- a/alembic/versions/c0bffa4e8fbc_token_if_in_commit_flag_can_be_null.py
+++ b/alembic/versions/c0bffa4e8fbc_token_if_in_commit_flag_can_be_null.py
@@ -19,6 +19,7 @@ def upgrade():
     op.alter_column(
         'commit_flags',
         column_name='token_id',
+        existing_type=sa.String(64),
         nullable=False,
         existing_nullable=True
     )
@@ -28,6 +29,7 @@ def downgrade():
     op.alter_column(
         'commit_flags',
         column_name='token_id',
+        existing_type=sa.String(64),
         nullable=True,
         existing_nullable=False
     )