Re: form_invalid

Then you need to make your model fields not required and override your
form.clean() methods, then you'll have complete control over the
validation process.

I see Melvyn already aswered.



2017-01-29 18:04 GMT-03:00 Roberto Russi <robrussi.reg@gmail.com>:
> But fields are required! I need to have a control over form also if 'save'
> button is clicked and required fields are not filled.
>
> Il giorno domenica 29 gennaio 2017 20:26:10 UTC+1, Norberto Bensa ha
> scritto:
>>
>> Are you telling me the following doesn't work for you?
>>
>> class DemoCreateView(CreateView):
>> ...
>> def post(self, request, *args, **kwargs):
>> print(request.POST)
>> return super().post(request, *args, **kwargs)
>> ...
>>
>>
>> Now, at the console:
>>
>>
>> <QueryDict: {'csrfmiddlewaretoken':
>> ['A3hHKM6Bs6NjJA996ALAsYPcYR7M3NWkzP4wcd6WUX1CEazC1dAK3aD1n8zl1aUU'],
>> 'demo_desc
>> r': [''], 'demo_code': ['']}>
>>
>> ...
>>
>> BTW, I had to add "blank=True, null=True" to your models, otherwise
>> the fields are marked as required and the browser does validate that.
>>
>> HTH,
>> Norberto
>>
>>
>> 2017-01-29 15:54 GMT-03:00 Roberto Russi <robrus...@gmail.com>:
>> >
>> > I have tried it but post method is called only if form is valid and not
>> > if there are mandatory field not filled.
>> >
>> >
>> > Il giorno domenica 29 gennaio 2017 18:30:50 UTC+1, Norberto Bensa ha
>> > scritto:
>> >>
>> >> https://ccbv.co.uk is your friend with class based views.
>> >>
>> >> I'd override post(self, request, *args, **kwargs), in request.POST,
>> >> you'll have your form's data (before it's validated).
>> >>
>> >> HTH,
>> >> Norberto
>> >>
>> >> 2017-01-29 9:10 GMT-03:00 Roberto Russi <robrus...@gmail.com>:
>> >>>
>> >>> I need get data from a form when submit is clicked even if data are
>> >>> invalid, inconplete or empty.
>> >>> I try to override form_invalid in CreateView but it is never called
>> >>> and form_valid, obviously, only if data are valid.
>> >>> Why form_invalid is never called?
>> >>>
>> >>> I have this test project with django 1.10.5 and python 3.5
>> >>>
>> >>> models.py
>> >>>
>> >>> class Demo(models.Model):
>> >>> demo_descr = models.CharField("Description",
>> >>> max_length=50,
>> >>> )
>> >>> demo_code = models.CharField("Code",
>> >>> max_length=5,
>> >>> )
>> >>>
>> >>> def __str__(self):
>> >>> return self.demo_descr
>> >>>
>> >>> class Meta:
>> >>> verbose_name = "Test"
>> >>> verbose_name_plural = "Tests"
>> >>> ordering = ["demo_descr"]
>> >>>
>> >>> views.py
>> >>>
>> >>> class DemoForm(forms.ModelForm):
>> >>> class Meta:
>> >>> model = models.Demo
>> >>> fields = ('demo_descr','demo_code')
>> >>>
>> >>>
>> >>> class DemoCreateView(CreateView):
>> >>> form_class = DemoForm
>> >>> success_url = 'demo'
>> >>> template_name = 'test_form.html'
>> >>> model = models.Demo
>> >>>
>> >>> def form_valid(self, form):
>> >>> print('valid')
>> >>> return CreateView.form_valid(self, form)
>> >>>
>> >>> def form_invalid(self, form):
>> >>> print('invalid')
>> >>> return CreateView.form_invalid(self, form)
>> >>>
>> >>> urls.py
>> >>>
>> >>> url(r'^demo$', views.DemoCreateView.as_view(), name='demo'),
>> >>>
>> >>>
>> >>> test_form.html
>> >>>
>> >>> <form method="post" action="">
>> >>> {% csrf_token %}
>> >>> {{ form.as_p }}
>> >>> <input type="submit" value="Save" />
>> >>> </form>
>> >>>
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