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Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/models/instances.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/ref/models/instances.txt b/docs/ref/models/instances.txt index 3b62675294..f0decc28d8 100644 --- a/docs/ref/models/instances.txt +++ b/docs/ref/models/instances.txt @@ -128,6 +128,18 @@ in the ``from_db()`` method. Refreshing objects from database ================================ +If you delete a field from a model instance, accessing it again reloads the +value from the database:: + + >>> obj = MyModel.objects.first() + >>> del obj.field + >>> obj.field # Loads the field from the database + +.. versionchanged:: 1.10 + + In older versions, accessing a deleted field raised ``AttributeError`` + instead of reloading it. + .. method:: Model.refresh_from_db(using=None, fields=None) If you need to reload a model's values from the database, you can use the |