diff options
Diffstat (limited to 'docs/howto')
| -rw-r--r-- | docs/howto/custom-model-fields.txt | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/docs/howto/custom-model-fields.txt b/docs/howto/custom-model-fields.txt index 95c1cd68ab..c0cde0e99b 100644 --- a/docs/howto/custom-model-fields.txt +++ b/docs/howto/custom-model-fields.txt @@ -705,15 +705,16 @@ Converting field data for serialization ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ To customize how the values are serialized by a serializer, you can override -:meth:`~Field.value_to_string`. Calling ``Field._get_val_from_obj(obj)`` is the -best way to get the value serialized. For example, since our ``HandField`` uses -strings for its data storage anyway, we can reuse some existing conversion code:: +:meth:`~Field.value_to_string`. Using ``value_from_object()`` is the best way +to get the field's value prior to serialization. For example, since our +``HandField`` uses strings for its data storage anyway, we can reuse some +existing conversion code:: class HandField(models.Field): # ... def value_to_string(self, obj): - value = self._get_val_from_obj(obj) + value = self.value_from_object(obj) return self.get_prep_value(value) Some general advice |