django field is required validators - django

Question

i have some forms at one page and I try to validate some fields too.
So if I enter wrong input at the test field, I get obviously the message ' invalid input', but also for each other field the messages 'This field is required.'.
How could I fix it? Override the clean function? But how?
class Example1Form(forms.ModelForm):
test = forms.CharField(max_length=30, validators=[RegexValidator(r'^[a-zA-Z0-9_-]+$'), MaxLengthValidator(30)])
And I also distinguish the different forms like:
class View(TemplateView):
def post(self, request, *args, **kwargs):
form_example1 = Example1Form(request.POST)
form_example2 = Example2Form(request.POST)
if form_example1.is_valid():
....
form_example2 = Example2Form()
return render(request, self.template, {'form_example1': form_example1, 'form_example2': form_example2})
if form_example2.is_valid():
....
Thank you very much for help!

Answer 1

First, you need a way to tell which form was submitted. You could name your submit buttons, for example:
<form>
{{ form_example1 }}
<input name="form_example_1" type="submit" value="Submit form 1">
</form>
<form>
{{ form_example2 }}
<input name="form_example_2" type="submit" value="Submit form 2">
</form>
Then, in your view, you should only bind your form to the POST data if that form was submitted. For example:
if "form_example1" in request.POST:
form_example1 = Example1Form(request.POST)
else:
form_example1 = Example1Form()
if "form_example2" in request.POST:
form_example2 = Example2Form(request.POST)
else:
form_example2 = Example2Form()