def test_serialization(self):
o1 = models.VersionModel(version=Version('0.1.1'), spec=Spec('==0.1.1,!=0.1.1-alpha'))
o2 = models.VersionModel(version=Version('0.4.3-rc3+build3'),
spec=Spec('<=0.1.1-rc2,!=0.1.1-rc1'))
data = serializers.serialize('json', [o1, o2])
obj1, obj2 = serializers.deserialize('json', data)
self.assertEqual(o1.version, obj1.object.version)
self.assertEqual(o1.spec, obj1.object.spec)
self.assertEqual(o2.version, obj2.object.version)
self.assertEqual(o2.spec, obj2.object.spec)
python类deserialize()的实例源码
def test_bitmaskfield_serialization_deserialization(self):
cases = dict(
none=None,
regualar=42,
)
for case, expected_value in cases.items():
with self.subTest(case=case):
model = TestModel(bitmask=expected_value)
serialized_data = serializers.serialize("xml", [model])
deserialized_data = list(serializers.deserialize('xml', serialized_data))
deserialized_model = deserialized_data[0].object
self.assertEqual(expected_value, deserialized_model.bitmask)
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def deserialize_db_from_string(self, data):
"""
Reloads the database with data from a string generated by
the serialize_db_to_string method.
"""
data = StringIO(data)
for obj in serializers.deserialize("json", data, using=self.connection.alias):
obj.save()
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def deserialize_db_from_string(self, data):
"""
Reloads the database with data from a string generated by
the serialize_db_to_string method.
"""
data = StringIO(data)
for obj in serializers.deserialize("json", data, using=self.connection.alias):
obj.save()
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is a instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def execute_fixture(name):
filename = os.path.join(FIXTURE_DIR, name + '.json')
connection = connections["default"]
with connection.constraint_checks_disabled():
with open(filename, "r") as stream:
objects = serializers.deserialize("json", stream)
for obj in objects:
if hasattr(obj.object, "_cache_data"):
obj.object._cache_data()
obj.save()
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def object_version(self):
"""The stored version of the model."""
data = self.serialized_data
data = force_text(data.encode("utf8"))
return list(serializers.deserialize(self.format, data, ignorenonexistent=True))[0]
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def import_(src):
"Imports data from a Sentry export."
from django.core import serializers
for obj in serializers.deserialize("json", src, stream=True, use_natural_keys=True):
obj.save()
def deserialize(format, stream_or_string, **options):
"""
Deserialize a stream or a string. Returns an iterator that yields ``(obj,
m2m_relation_dict)``, where ``obj`` is an instantiated -- but *unsaved* --
object, and ``m2m_relation_dict`` is a dictionary of ``{m2m_field_name :
list_of_related_objects}``.
"""
d = get_deserializer(format)
return d(stream_or_string, **options)
def deserialize_db_from_string(self, data):
"""
Reloads the database with data from a string generated by
the serialize_db_to_string method.
"""
data = StringIO(data)
for obj in serializers.deserialize("json", data, using=self.connection.alias):
obj.save()
