Django - Take username of logged user as default value to another model - django

Question

I have the model "Account" below:
class Account(models.Model):
email=models.EmailField(verbose_name="email", max_length=60, unique=True)
username=models.CharField(max_length=30, unique=True)
data_inscricao=models.DateTimeField(verbose_name='Data de Inscrição', auto_now_add=True)
ultimo_login=models.DateTimeField(verbose_name='ùltimo Login', auto_now_add=True)
def __str__(self):
return self.username
and this other "PersonalData"...
class PersonalData(models.Model):
id_user=models.OneToOneField(Account, on_delete=models.CASCADE)
nome_completo=models.CharField(max_length=56, unique=True, null=True)
email=models.EmailField(max_length=60, verbose_name="Email", unique=True, null=True)
cpf=models.CharField(max_length=14, unique=True, null=True, verbose_name="CPF")
rg=models.CharField(max_length=12, unique=True, null=True, verbose_name="RG")
idade=models.IntegerField(null=True)
data_nascimento=models.DateField(verbose_name="Data de Nascimento", null=True)
genero=models.CharField(max_length=8, choices=GENERO, null=True)
estado_civil=models.CharField(max_length=13, null=True, choices=ESTADO_CIVIL, verbose_name="Estado Civil")
def __str__(self):
return self.nome_completo
views.py
def cadastro_curriculo(request):
form = InsereDadosPessoais(request.POST or None, request.FILES or None)
if form.is_valid():
form.save()
return redirect("vagas")
return render(request, "personal/curriculo.html", {'form': form,})
forms.py
class InsereDadosPessoais(forms.ModelForm):
class Meta:
model = PersonalData
fields = '__all__'
I'ld like PersonalData.id_user use by default the Account.username of the loged user and I don't know how do that.
Just to exemplify, In Django Admin, my PersonalData model allows me to choose the user, but I want it to happen automatically and not manually.
Can someone help me?

Answer 1

at admin.py add the admin class as per the docs
assign exclude as per the docs
exclude = ('user',)
and at save_model
def save_model(self, request, obj, form, change):
obj.user = request.user
super().save_model(request, obj, form, change)
Check docs here
If you want to add this to normal views
forms.py
class XXForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
self.user = kwargs.pop('user', None)
super(XXForm, self).__init__(*args, **kwargs)
def save(self, commit=True):
obj = super(XXForm, self).save(commit=False)
obj.user = self.user
if commit:
obj.save()
return obj
views.py
def xxview(request, *args, **kwargs): # your args
if request.POST:
#your stuff
form = XXForm(request.POST......., user=request.user)
else:
# your stuff
Check views here

Answer 2

I think you are Brazilian too :) Welcome! I learned this from this site.
models.py
from django.contrib.auth import User
class PersonalData(models.Model):
id_user = models.OneToOneField(User, on_delete=models.PROTECT, null=True, blank=True)
cpf = models.CharField(max_length=14, unique=True, null=True, verbose_name="CPF")
rg = models.CharField(max_length=12, unique=True, null=True, verbose_name="RG")
idade = models.IntegerField(null=True)
data_nascimento = models.DateField(verbose_name="Data de Nascimento", null=True)
genero = models.CharField(max_length=8, choices=GENERO, null=True)
estado_civil = models.CharField(max_length=13, null=True, choices=ESTADO_CIVIL, verbose_name="Estado Civil")
data_inscricao = models.DateTimeField(verbose_name='Data de Inscrição', auto_now_add=True)
ultimo_login = models.DateTimeField(verbose_name='ùltimo Login', auto_now_add=True)
def __str__(self):
return '{} {}'.format(id_user.first_name, id_user.last_name)
def save_model(self, request, obj, form, change):
if not obj.id_user:
# Only set added_by during the first save.
obj.id_user = request.user
super().save_model(request, obj, form, change)
admin.py
from .models import PersonalData
class PersonalDataAdmin(admin.ModelAdmin):
readonly_fields = ('id_user',)
admin.site.register(PersonalData, PersonalDataAdmin)
Important notes:
You don't have to create a field that saves the full name, Django itself can do it for you.
If you are going to use Django-Admin you can work with permissions within it by own User models. Click here and read a little about.
I recommend you use the built-in User model, it would look like this. Feel free to access my profile and get my contact information, I would be happy to help you with your project!

Answer 3

I'd suppose you have to make id_user field a foreign key to Account identifier which you should add to your model. In your described scenario id_user will "use" Account.username which is not obligated to be unique among all the users registered in the system. So, I suggest you to create an id field for Account and utilize it as a numeral identifier for that model.
Also, if I do not mistake, Django has an intrinsic User model which is intended for usage in such cases. Of course, you can extend that model for adding specific attributes.