Hello,
TestForm is a ModelForm, therefore you initialize it by passing an
object instance.
obj = Test.objects.get(id=id)
form = TestForm(instance=obj)
Here is a sample view with proper usage of modelforms:
def formrender(request, id=None):
form = TestForm() # TestForm is a ModelForm
test = None
if id:
test = Test.objects.get(id=id) # note- should try-except here
form = TestForm(instance=test)
if request.method == 'POST':
form = TestForm(request.POST, instance=test)
form.save()
return render_to_response('temp2.html',{'form':form},
context_instance=RequestContext(request))
Hope it helps.
--
Gladys
http://bixly.com
On Apr 11, 12:34 am, jim_rain <j...@rainville.net> wrote:
> Hi -
>
> I'm using Django 1.3 and I have a model defined with a DateTimeField
> and a corresponding form that uses a SpliteDateTimeField to format the
> date and time the way I want it to look. The definition looks like
> this:
>
> # ----------- Code snippet _____________________________#
> class Test(models.Model):
> name = models.CharField(max_length=200)
> description = models.CharField(max_length=1024, blank=True)
> start_time = models.DateTimeField('start date/time')
>
> class TestForm(ModelForm):
> start_time = SplitDateTimeField(input_time_formats=['%I:%M %p',
> '%H:%M:%S', '%H:%M'],
>
> widget=SplitDateTimeWidget(date_format='%m/%d/%Y', time_format='%I:%M
> %p'))
> class Meta:
> model = Test
> widgets = { 'description': Textarea(attrs={'cols': 40, 'rows':
> 5}), }
>
> # ----------- End snippet _____________________________#
>
> This works perfectly if I'm adding new instances of Test, the date and
> time format the way I want it and they go into the database correctly.
> The problem I'm having is that I would like to have an edit page to
> edit the item in the data base. So in my view I have this:
>
> # ----------- Code snippet _____________________________#
> def test_edit(request, test_id):
> if request.method == 'POST': # If the form has been submitted...
> # Edited out for brevity.
> else:
> test = Test.objects.get(id=test_id)
> test_dict = model_to_dict(test)
>
> logging.info('Test_dict-------------------------------------------')
> logging.info(test_dict)
> form = TestForm(test_dict) # An unbound form
>
> return render_to_response('tester/edit_test.html', {'form':
> form,},
>
> context_instance=RequestContext(request))
> # ----------- End snippet _____________________________#
>
> When I do this I can look in the log and the start_time is a date time
> tuple as it should be. But in my form the fields for date and time are
> not populated with the values that were in the database and that
> showed up in the log.
> Another curious thing is that when I create a new TestForm object and
> give it an initial value like this:
> form = TestForm(initial={'start_time':
> datetime.datetime.now(), })
> It works just fine - the date and time are populated in the form with
> the current date and time.
>
> What am I doing wrong here? I have a feeling I have to do something
> with over riding the clean method of the form but I'm now sure how.
>
> Thanks for any help.
> Jim
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