def adapt_timefield_value(self, value):
if value is None:
return None
# MySQL doesn't support tz-aware times
if timezone.is_aware(value):
raise ValueError(
"MySQL backend does not support timezone-aware times.")
return six.text_type(value)
def default(self, obj):
if isinstance(obj, decimal.Decimal):
return str(obj)
if isinstance(obj, datetime.datetime):
if timezone.is_aware(obj):
obj = timezone.localtime(obj)
return obj.strftime('%Y-%m-%d %H:%M:%S')
if isinstance(obj, datetime.date):
return obj.strftime('%Y-%m-%d')
return json.JSONEncoder.default(self, obj)
def adapt_timefield_value(self, value):
if value is None:
return None
# MySQL doesn't support tz-aware times
if timezone.is_aware(value):
raise ValueError(
"MySQL backend does not support timezone-aware times.")
return six.text_type(value)
def adapt_datetimefield_value(self, value):
if value is None:
return None
# MySQL doesn't support tz-aware datetimes
if timezone.is_aware(value):
if settings.USE_TZ:
value = timezone.make_naive(value, self.connection.timezone)
else:
raise ValueError(
"MySQL backend does not support timezone-aware datetimes when USE_TZ is False.")
if not self.connection.features.supports_microsecond_precision:
value = value.replace(microsecond=0)
return six.text_type(value)
def adapt_datetimefield_value(self, value):
if value is None:
return None
# MySQL doesn't support tz-aware datetimes
if timezone.is_aware(value):
if settings.USE_TZ:
value = timezone.make_naive(value, self.connection.timezone)
else:
raise ValueError(
"MySQL backend does not support timezone-aware datetimes when USE_TZ is False."
)
if not self.connection.features.supports_microsecond_precision:
value = value.replace(microsecond=0)
return six.text_type(value)
def default(self, obj):
# For Date Time string spec, see ECMA 262
# http://ecma-international.org/ecma-262/5.1/#sec-15.9.1.15
if isinstance(obj, datetime.datetime):
representation = obj.isoformat()
# NOTE: we store microseconds with full precision, technically not a valid isostring...
# if obj.microsecond:
# representation = representation[:23] + representation[26:]
if representation.endswith('+00:00'):
representation = representation[:-6] + 'Z'
return representation
elif isinstance(obj, datetime.date):
return obj.isoformat()
elif isinstance(obj, datetime.time):
if timezone and timezone.is_aware(obj):
raise ValueError("JSON can't represent timezone-aware times.")
representation = obj.isoformat()
# NOTE: we store microseconds with full precision, technically not a valid isostring...
# if obj.microsecond:
# representation = representation[:12]
return representation
elif isinstance(obj, decimal.Decimal):
# Serializers will coerce decimals to strings by default.
return float(obj)
elif isinstance(obj, uuid.UUID):
return str(obj)
elif hasattr(obj, 'tolist'):
# Numpy arrays and array scalars.
return obj.tolist()
elif hasattr(obj, '__getitem__'):
try:
return dict(obj)
except:
pass
elif hasattr(obj, '__iter__'):
return tuple(item for item in obj)
return super(JSONEncoder, self).default(obj)