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Code Issues 32 Releases Wiki Activity

Fixed #17602 -- Stopped the XML serializer from doing unneeded queries. Thanks, gnosek.

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@17439 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Jannis Leidel
2012-02-04 18:27:07 +00:00
parent 928f605efe
commit 62efdcb037
3 changed files with 24 additions and 22 deletions
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18
django/core/serializers/python.py
View File

@@ -45,18 +45,12 @@ class Serializer(base.Serializer):
self._current[field.name] = field.value_to_string(obj)
def handle_fk_field(self, obj, field):
related = getattr(obj, field.name)
if related is not None:
if self.use_natural_keys and hasattr(related, 'natural_key'):
related = related.natural_key()
else:
if field.rel.field_name == related._meta.pk.name:
# Related to remote object via primary key
related = related._get_pk_val()
else:
# Related to remote object via other field
related = smart_unicode(getattr(related, field.rel.field_name), strings_only=True)
self._current[field.name] = related
if self.use_natural_keys and hasattr(field.rel.to, 'natural_key'):
related = getattr(obj, field.name)
value = related.natural_key()
else:
value = getattr(obj, field.get_attname())
self._current[field.name] = value
def handle_m2m_field(self, obj, field):
if field.rel.through._meta.auto_created:

15
django/core/serializers/xml_serializer.py
View File

@@ -85,9 +85,10 @@ class Serializer(base.Serializer):
differently from regular fields).
"""
self._start_relational_field(field)
related = getattr(obj, field.name)
if related is not None:
if self.use_natural_keys and hasattr(related, 'natural_key'):
related_att = getattr(obj, field.get_attname())
if related_att is not None:
if self.use_natural_keys and hasattr(field.rel.to, 'natural_key'):
related = getattr(obj, field.name)
# If related object has a natural key, use it
related = related.natural_key()
# Iterable natural keys are rolled out as subelements
@@ -96,13 +97,7 @@ class Serializer(base.Serializer):
self.xml.characters(smart_unicode(key_value))
self.xml.endElement("natural")
else:
if field.rel.field_name == related._meta.pk.name:
# Related to remote object via primary key
related = related._get_pk_val()
else:
# Related to remote object via other field
related = getattr(related, field.rel.field_name)
self.xml.characters(smart_unicode(related))
self.xml.characters(smart_unicode(related_att))
else:
self.xml.addQuickElement("None")
self.xml.endElement("field")