Django form : Doesn't display any form errors - django

Question

I'm getting an issue with my Django form validation. I would like to display form errors and make all fields required. I don't know why my fields can accept blank while blank is not defined in my model file.
This is my model :
class Customer(models.Model):
email = models.CharField(max_length=150, verbose_name=_('e-mail'), null=False)
first_name = models.CharField(max_length=70, verbose_name=_('first name'), null=False)
last_name = models.CharField(max_length=70, verbose_name=_('last name'), null=False)
country = models.ForeignKey(Country, verbose_name=_('country'))
institution = models.CharField(max_length=255, verbose_name=_('institution'), null=True)
creation_date = models.DateTimeField(auto_now_add=True, verbose_name=_('creation date'), null=False)
modification_date = models.DateTimeField(auto_now=True, verbose_name=_('modification date'), null=False)
class Meta:
verbose_name = _('customer')
verbose_name_plural = _('customer')
def __str__(self):
return f"{self.email}"
This is my form :
class CustomerForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(CustomerForm, self).__init__(*args, **kwargs)
self.fields['country'].empty_label = _('Select a country')
self.fields['country'].queryset = self.fields['country'].queryset.order_by(
'name')
for key in self.fields:
self.fields[key].required = True
class Meta:
model = Customer
fields = ['email', 'first_name', 'last_name', 'country', 'institution']
widgets = {
'email': forms.TextInput(attrs={'placeholder': _('name#example.com')}),
'first_name': forms.TextInput(attrs={'placeholder': _('First Name')}),
'last_name': forms.TextInput(attrs={'placeholder': _('Last Name')}),
'institution': forms.TextInput(attrs={'placeholder': _('Agency, company, academic or other affiliation')}),
}
You can find here my view with Django CBV :
class HomeView(CreateView):
""" Render the home page """
template_name = 'app/index.html'
form_class = CustomerForm
def get_context_data(self, **kwargs):
kwargs['document_list'] = Document.objects.all().order_by('publication__category__name')
return super(HomeView, self).get_context_data(**kwargs)
def post(self, request, *args, **kwargs):
if request.method != 'POST':
return HttpResponseRedirect(self.get_success_url())
form = self.form_class(request.POST)
email = request.POST['email']
country_id = request.POST['country']
country = Country.objects.get(id=country_id)
for checkbox in request.POST.getlist('DocumentChoice'):
document = Document.objects.get(id=checkbox)
token = self.gen_token(email, document.edqm_id)
Download.objects.create(email=email, country=country, pub_id=checkbox, token=token,
expiration_date=now + timedelta(minutes=10))
if not form.is_valid():
print('form invalid')
continue
return HttpResponseRedirect(self.get_success_url())
And finally my template :
{% extends "publication/base_backend.html" %}
{% load staticfiles %}
{% load i18n %}
{% load crispy_forms_tags %}
{% block main %}
<form method="post" id="customerform" novalidate>
{% csrf_token %}
<h3>{% trans 'Your information' %}</h3>
<hr>
<div class="col-sm-12 col-md-12 col-lg-12">
{{ form.email|as_crispy_field:"bootstrap" }}
</div>
<br />
<br />
<br />
<br />
<div class="alert alert-info col-sm-12 col-md-12 col-lg-12" role="alert">
<small>{% trans "The fields below are optional if you have already requested a publication:" %}</small>
</div>
<div class="col-sm-5 col-md-5 col-lg-5">
{{ form.first_name|as_crispy_field:"bootstrap" }}<br>
{{ form.country|as_crispy_field:"bootstrap" }}
</div>
<div class="col-sm-5 col-md-5 col-lg-5 col-sm-offset-2 col-md-offset-2 col-lg-offset-2">
{{ form.last_name|as_crispy_field:"bootstrap" }}<br>
{{ form.institution|as_crispy_field:"bootstrap" }}
</div>
<div class="col-md-12">
<br />
<br />
</div>
<input type="submit" class="btn btn-default" value="{% trans 'Save' %}"/>
{% trans 'Cancel' %}
</form>
Issues :
According to required fields, I don't know why my form doesn't display missing values errors when I want to submit it.
I have to display fields as shown in my template because I have to make bootstrap design.
In order to display form errors, I have to write {{form.email.errors}} for example but nothing appears.
Thank you by advance