GMaps related JS changed to use new google namespace.
Google is going to change permanently in the future the way to
load its services, so better stay safe.
Also this commit shows uses of the new melange.js module.
Fixes Issue 634.
"""
Serialize data to/from JSON
"""
import datetime
from StringIO import StringIO
from django.core.serializers.python import Serializer as PythonSerializer
from django.core.serializers.python import Deserializer as PythonDeserializer
from django.utils import datetime_safe
from django.utils import simplejson
try:
import decimal
except ImportError:
from django.utils import _decimal as decimal # Python 2.3 fallback
class Serializer(PythonSerializer):
"""
Convert a queryset to JSON.
"""
internal_use_only = False
def end_serialization(self):
self.options.pop('stream', None)
self.options.pop('fields', None)
simplejson.dump(self.objects, self.stream, cls=DjangoJSONEncoder, **self.options)
def getvalue(self):
if callable(getattr(self.stream, 'getvalue', None)):
return self.stream.getvalue()
def Deserializer(stream_or_string, **options):
"""
Deserialize a stream or string of JSON data.
"""
if isinstance(stream_or_string, basestring):
stream = StringIO(stream_or_string)
else:
stream = stream_or_string
for obj in PythonDeserializer(simplejson.load(stream)):
yield obj
class DjangoJSONEncoder(simplejson.JSONEncoder):
"""
JSONEncoder subclass that knows how to encode date/time and decimal types.
"""
DATE_FORMAT = "%Y-%m-%d"
TIME_FORMAT = "%H:%M:%S"
def default(self, o):
if isinstance(o, datetime.datetime):
d = datetime_safe.new_datetime(o)
return d.strftime("%s %s" % (self.DATE_FORMAT, self.TIME_FORMAT))
elif isinstance(o, datetime.date):
d = datetime_safe.new_date(o)
return d.strftime(self.DATE_FORMAT)
elif isinstance(o, datetime.time):
return o.strftime(self.TIME_FORMAT)
elif isinstance(o, decimal.Decimal):
return str(o)
else:
return super(DjangoJSONEncoder, self).default(o)
# Older, deprecated class name (for backwards compatibility purposes).
DateTimeAwareJSONEncoder = DjangoJSONEncoder