Commit a1b9737a authored by Andrey Kuzmin's avatar Andrey Kuzmin Committed by Tim Graham
Browse files

Cached model field_names in Python Deserializer.

parent 10ace52a

django/core/serializers/python.py

+5 −1
Original line number Diff line number Diff line
@@ -89,6 +89,7 @@ def Deserializer(object_list, **options): 
    """

    db = options.pop('using', DEFAULT_DB_ALIAS)

    ignore = options.pop('ignorenonexistent', False)

    field_names_cache = {}  # Model: <list of field_names>



    for d in object_list:

        # Look up the model and starting build a dict of data for it.
@@ -106,7 +107,10 @@ def Deserializer(object_list, **options): 
            except Exception as e:

                raise base.DeserializationError.WithData(e, d['model'], d.get('pk'), None)

        m2m_data = {}

        field_names = {f.name for f in Model._meta.get_fields()}



        if Model not in field_names_cache:

            field_names_cache[Model] = {f.name for f in Model._meta.get_fields()}

        field_names = field_names_cache[Model]



        # Handle each field

        for (field_name, field_value) in six.iteritems(d["fields"]):