diff options
Diffstat (limited to 'django/forms')
| -rw-r--r-- | django/forms/models.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/django/forms/models.py b/django/forms/models.py index db710a2ed2..0e80e19042 100644 --- a/django/forms/models.py +++ b/django/forms/models.py @@ -84,6 +84,7 @@ def model_to_dict(instance, fields=None, exclude=None): fields will be excluded from the returned dict, even if they are listed in the ``fields`` argument. """ + from django.db import models opts = instance._meta data = {} for f in chain(opts.concrete_fields, opts.private_fields, opts.many_to_many): @@ -94,6 +95,10 @@ def model_to_dict(instance, fields=None, exclude=None): if exclude and f.name in exclude: continue data[f.name] = f.value_from_object(instance) + # Evaluate ManyToManyField QuerySets to prevent subsequent model + # alteration of that field from being reflected in the data. + if isinstance(f, models.ManyToManyField): + data[f.name] = list(data[f.name]) return data |