Re: form_invalid

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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>>
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