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Timedelta Database Field

<p>This subclass of django.models.Field stores a python datetime.timedelta object
as an integer column in the database.</p>
<p>It includes a TimedeltaFormField for editing it through djangos admin interface.</p>
<p>Feedback welcome.</p>
<p>2011-04-20: TimedeltaField can now be (de)serialized. Tested with JSON.</p>
<p>2009-11-23: _has_changed() added. Before form.changed_data contained timedelta FormFields,
even if nothing changed.</p>

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file_2338.py(7.1Кб)
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Ответы (7):

Ответsbaechler:19.03.2012
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Where do I find djangotools? There is a repo on github but it does not contain a module called southutils.

Ответmike_dibernardo:22.03.2009
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This is really handy, thanks!

Ответxuqingkuang:17.01.2009
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I got this message from Google Group.

And thank you for your snippet I will try it.

Ответmojo:22.12.2008
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hi, in admin, assert in to_python throws exception. my quickfix follows:

def to_python(self, value):
    if (value is None) or isinstance(value, datetime.timedelta):
        return value
    if value == '':
        value = 0
    assert isinstance(value, int), (value, type(value))
    return datetime.timedelta(seconds=value)

Serializing model with TimeDelta field then loading fixture, also fails to assert(TimeField is represented as string, i.e. '2:03:00')

Ответguettli:23.10.2008
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I just uploaded a new version. I think the reported bug was fixed.

Ответguettli:17.10.2008
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Hi jonson, I couldn't find your email address.

I can't reproduce your problem. Please send me the traceback. Please send the HTML-Debug Traceback to hv@tbz-pariv.de.

Ответjonson:24.09.2008
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Hi there, great Field! Only one improvement, timedelta filled with zeros causes HTTP 500 / error. For this case I made change on one line in to_python() method.

def to_python(self, value):
    if (not value) or isinstance(value, datetime.timedelta):
        return datetime.timedelta(0)
    assert isinstance(value, (int, long,) ), (value, type(value))
    return datetime.timedelta(seconds=value)