Mark Huang <[email protected]> writes:
> Could you post the JSON renderer to deal with datetimes as well?
Sure, here it is::
class Encoder(JSONEncoder):
"""Extends JSONEncoder for date and decimal types."""
def push_date(self, d):
"""Serialize the given datetime.date object to a JSON string."""
# Default is ISO 8601 compatible (standard notation).
return "%04d-%02d-%02d" % (d.year, d.month, d.day)
def push_timedelta(self, t):
"""Serialize the given datetime.timedelta object to a JSON
string."""
days = t.days
if days < 0:
minus = "-"
days = -days - 1
seconds = 24*60*60 - t.seconds
else:
minus = ""
seconds = t.seconds
secs = seconds % 60
seconds /= 60
mins = seconds % 60
hours = seconds / 60
return "%s%d:%02d:%02d:%02d" % (minus, days, hours, mins, secs)
def push_time(self, t):
"""Serialize the given datetime.time object to a JSON string."""
# Default is ISO 8601 compatible (standard notation).
return "%02d:%02d:%02d" % (t.hour, t.minute, t.second)
def push_datetime(self, dt):
"""Serialize the given datetime.datetime object to a JSON string."""
# Default is ISO 8601 compatible (standard notation).
# Don't use strftime because that can't handle dates before 1900.
return ("%04d-%02d-%02dT%02d:%02d:%02d" %
(dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second))
def default(self, o):
# We MUST check for a datetime.datetime instance before
datetime.date.
# datetime.datetime is a subclass of datetime.date, and therefore
# instances of it are also instances of datetime.date.
if isinstance(o, datetime.datetime):
return self.push_datetime(o)
elif isinstance(o, datetime.date):
return self.push_date(o)
elif isinstance(o, datetime.timedelta):
return self.push_timedelta(o)
elif isinstance(o, datetime.time):
return self.push_time(o)
elif isinstance(o, decimal.Decimal):
return str(o)
else:
return JSONEncoder.default(self, o)
hth,
ciao, lele.
--
nickname: Lele Gaifax | Quando vivrò di quello che ho pensato ieri
real: Emanuele Gaifas | comincerò ad aver paura di chi mi copia.
[email protected] | -- Fortunato Depero, 1929.
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