python之表单处理Django中的日期时间对象格式错误

我已经用头撞墙一段时间了，也许有人可以帮助我。这涉及 Django 表单和日期时间格式。

所以我试图制作一个表单 View ，从用户那里获取一些信息，包括日期时间元素。我的观点如下:

def index(request): 
un = request.user.username 
plot, created = PreciseRequest.objects.get_or_create( user_name=un ) 
if request.method == 'POST': 
  form = PreciseForm(request.POST) 
    if form.is_valid(): 
        plot.user_name = form.cleaned_data['user_name'], 
        plot.analyte_choice = form.cleaned_data['analyte_choice'], 
        plot.plot_format = form.cleaned_data['plot_format'], 
        plot.start_datetime = form.cleaned_data['start_datetime'], 
        plot.end_datetime = form.cleaned_data['end_datetime'], 
        plot.inoculation_start = form.cleaned_data['inoculation_start'], 
        plot.inoculation_end = form.cleaned_data['inoculation_end'], 
        plot.time_interval_value = form.cleaned_data['time_interval_value'], 
        plot.time_interval_type = form.cleaned_data['time_interval_type'], 
        plot.auto_glycerol = form.cleaned_data['auto_glycerol'], 
        plot.min_glycerol = form.cleaned_data['min_glycerol'], 
        plot.max_glycerol = form.cleaned_data['max_glycerol'], 
        plot.auto_methanol = form.cleaned_data['auto_methanol'], 
        plot.min_methanol = form.cleaned_data['min_methanol'], 
        plot.max_methanol = form.cleaned_data['max_methanol'], 
        plot.auto_od = form.cleaned_data['auto_od'], 
        plot.min_od = form.cleaned_data['min_od'], 
        plot.max_od = form.cleaned_data['max_od'] 
        plot.save( ) 
    else: 
      plot_data = { 
        'user_name': plot.user_name, 
        'analyte_choice': plot.analyte_choice, 
        'plot_format': plot.plot_format, 
        'start_datetime': plot.start_datetime, 
        'end_datetime': plot.end_datetime, 
        'inoculation_start': plot.inoculation_start, 
        'inoculation_end': plot.inoculation_end, 
        'time_interval_value': plot.time_interval_value, 
        'time_interval_type': plot.time_interval_type, 
        'auto_glycerol': plot.auto_glycerol, 
        'min_glycerol': plot.min_glycerol, 
        'max_glycerol': plot.max_glycerol, 
        'auto_methanol': plot.auto_methanol, 
        'min_methanol': plot.min_methanol, 
        'max_methanol': plot.max_methanol, 
        'auto_od': plot.auto_od, 
        'min_od': plot.min_od, 
        'max_od': plot.max_od 
    } 
    form = PreciseForm( initial=plot_data ) 
context = Context({ 'title':'Create a Precise Plot', 'form':form }) 
return render_to_response('PrecisePlot/index.html',context) 
 
        return HttpResponseRedirect( 'ViewPlot/%s/' % plot.id ) 

我一直收到以下错误，好像我传递的日期时间对象不正确？

[u"'(datetime.datetime(2013, 1, 1, 14, 44, 27),)' value has an invalid format. It must be in YYYY-MM-DD HH:MM[:ss[.uuuuuu]][TZ] format."]

任何帮助将不胜感激，谢谢!

模型

class PreciseRequest( models.Model ): 
user_name = models.CharField( max_length=32 ) 
analyte_choice = models.CharField( max_length=3, choices=ANALYTE_CHOICES, default='GMO' ) 
plot_format = models.CharField( max_length=2, choices=PLOT_FORMATS, default='SD' ) 
start_datetime = models.DateTimeField() 
end_datetime = models.DateTimeField( ) 
inoculation_start = models.DateTimeField(  ) 
inoculation_end = models.DateTimeField(  ) 
time_interval_value = models.IntegerField( default = 1 ) 
time_interval_type = models.CharField( max_length=1, choices=INTERVAL_OPTIONS, default='D' ) 
auto_glycerol = models.BooleanField( default=True ) 
min_glycerol = models.FloatField( default = 0 ) 
max_glycerol = models.FloatField( default = 20 ) 
auto_methanol = models.BooleanField( default=True ) 
min_methanol = models.FloatField( default = 0 ) 
max_methanol = models.FloatField( default = 6 ) 
auto_od = models.BooleanField( default=True ) 
min_od = models.FloatField( default = 0 ) 
max_od = models.FloatField( default = 2 ) 
def __unicode__(self): 
    return u'%s' % self.user_name 
class Meta: 
    ordering = ( 'id', ) 
    verbose_name = ( 'Precise Plot' ) 
    verbose_name_plural = ( 'Precise Plots' ) 

形式:

class PreciseForm( forms.Form ): 
user_name = forms.CharField( max_length=32 ) 
analyte_choice = forms.ChoiceField( choices=ANALYTE_CHOICES, initial='GMO' ) 
plot_format = forms.ChoiceField( choices=PLOT_FORMATS, initial='SD', widget=forms.Select(attrs={'onclick':'showOptions(this);'}) ) 
start_datetime = forms.DateTimeField( ) 
end_datetime = forms.DateTimeField( ) 
inoculation_start = forms.DateTimeField() 
inoculation_end = forms.DateTimeField() 
time_interval_value = forms.IntegerField() 
time_interval_type = forms.ChoiceField(  choices=INTERVAL_OPTIONS, initial='D' ) 
auto_glycerol = forms.BooleanField( initial=False, required=False, widget=forms.CheckboxInput(attrs={'onclick':'showScale(this);'}) ) 
min_glycerol = forms.FloatField( min_value=-10, max_value=20, initial=0, required=False ) 
max_glycerol = forms.FloatField( min_value=0, max_value=100, initial=20, required=False ) 
auto_methanol = forms.BooleanField( initial=False, required=False, widget=forms.CheckboxInput(attrs={'onclick':'showScale(this);'}) ) 
min_methanol = forms.FloatField( min_value=-10, max_value=6, initial=0, required=False ) 
max_methanol = forms.FloatField( min_value=0, max_value=20, initial=6, required=False ) 
auto_od = forms.BooleanField( initial=False, required=False, widget=forms.CheckboxInput(attrs={'onclick':'showScale(this);'}) ) 
min_od = forms.FloatField( min_value=-10, max_value=2, initial=0, required=False ) 
max_od = forms.FloatField( min_value=0, max_value=20, initial=2, required=False ) 

请您参考如下方法:

查看 forms.DateField 上的文档.您可以指定要使用哪种格式来验证传入日期。