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Fixed #901 -- Added Model.refresh_from_db() method

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Thanks to github aliases dbrgn, carljm, slurms, dfunckt, and timgraham
for reviews.
This commit is contained in:
Anssi Kääriäinen 2014-07-05 09:03:52 +03:00 • committed by Tim Graham
parent 912ad03226
commit c7175fcdfe
9 changed files with 265 additions and 11 deletions
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10
django/db/models/query_utils.py
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@ -109,14 +109,8 @@ class DeferredAttribute(object):
# might be able to reuse the already loaded value. Refs #18343.
val = self._check_parent_chain(instance, name)
if val is None:
# We use only() instead of values() here because we want the
# various data coercion methods (to_python(), etc.) to be
# called here.
val = getattr(
non_deferred_model._base_manager.only(name).using(
instance._state.db).get(pk=instance.pk),
self.field_name
)
instance.refresh_from_db(fields=[self.field_name])
val = getattr(instance, self.field_name)
data[self.field_name] = val
return data[self.field_name]