diff options
Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/migration-operations.txt | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/docs/ref/migration-operations.txt b/docs/ref/migration-operations.txt index dc76bc7279..5b8a6c14a5 100644 --- a/docs/ref/migration-operations.txt +++ b/docs/ref/migration-operations.txt @@ -231,7 +231,18 @@ equivalent to the SQL in terms of project state; for example, if you are manually creating a column, you should pass in a list containing an ``AddField`` operation here so that the autodetector still has an up-to-date state of the model (otherwise, when you next run ``makemigrations``, it won't see any -operation that adds that field and so will try to run it again). +operation that adds that field and so will try to run it again). For example:: + + migrations.RunSQL( + "ALTER TABLE musician ADD COLUMN name varchar(255) NOT NULL;", + state_operations=[ + migrations.AddField( + 'musician', + 'name', + models.CharField(max_length=255), + ), + ], + ) The optional ``hints`` argument will be passed as ``**hints`` to the :meth:`allow_migrate` method of database routers to assist them in making |