Getting the error: This field is required when update user - django

Question

I'm trying to update a user profile using two forms the problem is that when I click to update I get the following error:
“<ul class="errorlist">
<li>username<ul class="errorlist"><li>This field is required.</li>
</ul>
”
My model module is the following:
# user.models
from django.contrib.auth.models import AbstractUser
from django.db import models
from model_utils.models import TimeStampedModel
from localflavor.br.models import BRPostalCodeField, BRStateField, BRCNPJField, BRCPFField
class User(AbstractUser):
class Roles(models.IntegerChoices):
SUPER = 0
COMPANY = 1
UNITY = 2
STAFF = 3
picture = models.ImageField(blank=True, null=True)
role = models.IntegerField(choices=Roles.choices, default=Roles.STAFF)
class Staff(TimeStampedModel):
user: User = models.OneToOneField(User, null=True, on_delete=models.CASCADE)
unity = models.ForeignKey(Unity, related_name="staff", on_delete=models.CASCADE)
cpf = BRCPFField("CPF")
class Meta:
verbose_name: str = 'Staff'
verbose_name_plural: str = 'Staff'
ordering = ("-created",)
def __str__(self):
if f"{self.user.first_name} {self.user.last_name}".strip():
return f"{self.user.first_name} {self.user.last_name}"
return str(self.user.username)
And my user forms looks like:
#user.forms
class UserModelForm(forms.ModelForm):
class Meta:
model = User
fields = ['username', 'first_name', 'last_name', 'email', 'is_active']
class StaffModelForm(forms.ModelForm):
class Meta:
model = Staff
fields = ['cpf', 'unity']
widget = {
'cpf': forms.TextInput(attrs={'class': "form-control", 'placeholder': 'Primeiro Nome', }),
'unity': forms.EmailInput(attrs={'class': "form-control", 'placeholder': 'meu#email.com', }),
}
with the following view:
#views
…
def update_staff(request: HttpRequest, pk: int) -> HttpResponse:
instance: Staff = get_object_or_404(Staff, pk=pk) # get staff instance
template_name = 'pages/staff_update_form.html' # use this template
if request.method == "POST":
profile_form = user_forms.StaffModelForm(request.POST, instance=instance)
user_form = user_forms.UserModelForm(request.POST, request.FILES, instance=instance.user)
print(user_form.is_valid())
print(user_form.errors)
print(profile_form.is_valid())
if user_form.is_valid() and profile_form.is_valid():
user_form.save()
profile_form.save()
messages.success(request, 'Your profile is updated successfully')
return redirect(to='pages:dashboard')
context = dict(profile_form=user_forms.StaffModelForm(instance=instance),
user_form=user_forms.UserModelForm(instance=instance.user))
return render(request, template_name=template_name, context=context)
Print output:
False
<ul class="errorlist"><li>username<ul class="errorlist"><li>This field is required.</li></ul
></li></ul>
True
and HTML:
{% load crispy_forms_tags %}
{% if user_form.errors %}
<div class="alert alert-danger alert-dismissible" role="alert">
<div id="form_errors">
{% for key, value in user_form.errors.items %}
<strong>{{ value }}</strong>
{% endfor %}
</div>
<button type="button" class="close" data-dismiss="alert" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
{% endif %}
<div class="py-5 text-center">
<span class="material-icons" style="height: 48px; width: auto; font-size: 48px;">people_alt</span>
<h1 class="h3 mb-3 fw-normal">Atualize aqui os dados do usuário!</h1>
</div>
<form class="form-signin" method="POST" enctype="multipart/form-data">
<div class="form-group">
<div class="row g-8 my-auto mx-auto" style="padding-left: 12%; padding-right: 12%;">
<div class="col-md-8 col-lg-12">
{% crispy profile_form %}
</div>
</div>
<div class="row g-8 my-auto mx-auto" style="padding-left: 12%; padding-right: 12%;">
<div class="col-md-8 col-lg-12">
{% crispy user_form %}
</div>
</div>
<div class="col-md-12 col-lg-12">
<br>
<div class="modal-footer">
Cancel
<button class="btn btn-primary mb-2" type="submit">Update</button>
</div>
</div>
</div>
</form>
<div class="py-5 text-center">
<p class="mt-5 mb-3 text-muted">© 2022-2023</p>
</div>
So I have no idea what the source of this problem is. Everything seems fine to me, can anyone help me?