Save model forms in django - python

This is supposed to be a trial run of a sign up form but the database is not storing the username and password. The error I'm getting is "The User could not be created because the data didn't validate".
views.py
def add_model(request):
if request.method=="POST":
form=UserForm(request.POST)
if form.is_valid:
model_instance=form.save(commit=False)
model_instance.save()
forms.py
class UserForm(forms.ModelForm):
class Meta:
model=User
fields=['username','password']
models.py
class User(models.Model):
username=models.CharField(max_length=25, primary_key=True,default="")
password=models.CharField(max_length=15,default="")
def __str__(self):
return self.username

It should be if form.is_valid() instead of if form.is_valid.
And "the data didn't validate" basically means you are trying to save() an invalid form.

forms.py
class UserForm(forms.ModelForm):
class Meta:
model=User
fields=['username','password']
def clean_username(self):
username = self.cleaned_data.get('username')
def clean_password(self):
password = self.cleaned_data.get('password')
views.py
def add_model(request):
if request.method=="POST":
form=UserForm(request.POST or None)
if form.is_valid():
username = form.cleaned_data['username']
password = form.cleaned_data['password']
new_user = User()
new_user.username = username
new_user.password = password
new_user.save()
I think This should be working correctly for your purpose.

Related

User model is not saving create_user instances

I have made a form having fields of personal information and login information as one
models.py
class EmployeeModel(models.Model)
employee_id = models.CharField(max_length=300,unique=True,help_text='Employee ID should not be same')
name = models.CharField(max_length=300)
username = models.CharField(max_length=50,null=True,blank=True)
email = models.EmailField(null=True,blank=True)
password = models.CharField(max_length=20,null=True,blank=True)
password_confirm = models.CharField(max_length=20,null=True,blank=True)
forms.py
class EmployeeForm(forms.ModelForm):
class Meta:
model = employeeModel
fields = ('__all__')
views.py
User = get_user_model()
def create_view(request):
if request.method == 'POST':
form = employeeForm(request.POST or None,request.FILES or None)
if form.is_valid():
username = form.cleaned_data['username']
email = form.cleaned_data['email']
password = form.cleaned_data['password']
User= get_user_model()
user= User.objects.create_user(username=username,email=email,password=password)
authenticate(request,username=username,email=email,password=password)
form.save()
return redirect('emp_list')
else:
form = employeeForm()
return render(request,'create_employee.html',{'form':form})
Its not showing any error but User.objects.all() shows only superuser not the users i created though this form. Those users i have created in this form are are showing up in Employee.objects.get(username='foo')
So what to do? I cant login through those non_superusers. it throws invalid login error. How to fix this?

New users can't log in. Django

I'm using a view to create new users in Django. And then I have another view to log them in.
But when I create a user, and I try to log in with authenticate(username=username_post, password=password_post), I get None, so it displays in the template 'Wrong username or password.'.
In my database, I see new registers every time I create a new user. However, as the password is encrypted, I can't say if the problem is the login view, or the register view.
However, the super user that I created through the command line after I first installed django, is able to login with no problem, so that makes me thing that the problem is when I create the user.
These are my Login and Register views:
class Login(View):
form = LoginForm()
message = None
template = 'settings/blog_login.html'
def get(self, request, *args, **kwargs):
if request.user.is_authenticated():
return redirect('settings:index')
return render(request, self.template, self.get_context())
def post(self, request, *args, **kwargs):
username_post = request.POST['username']
password_post = request.POST['password']
user = authenticate(username=username_post, password=password_post)
if user is not None:
login(request, user)
return redirect('settings:index')
else:
self.message = 'Wrong username or password.'
return render(request, self.template, self.get_context())
def get_context(self):
return {'form': self.form, 'message': self.message}
class Register(CreateView):
success_url = reverse_lazy('settings:login')
model = User
template_name = 'settings/blog_register.html'
form_class = RegisterForm
def form_valid(self, form):
self.object = form.save(commit=False)
self.object.set_password(self.object.password)
self.object.save()
return HttpResponseRedirect(self.get_success_url())
And these are my forms:
class LoginForm(forms.Form):
username = forms.CharField(max_length=20, label='Username')
password = forms.CharField(label='Password', widget=forms.PasswordInput())
class RegisterForm(forms.ModelForm):
username = forms.CharField(max_length=20, label='Username')
password1 = forms.CharField(label='Password', widget=forms.PasswordInput(),
error_messages={'required': 'Required field.',
'unique': 'Username already used.',
'invalid': 'Not valid username.'})
password2 = forms.CharField(label='Retype password', widget=forms.PasswordInput(),
error_messages={'required': 'Required field.'})
email = forms.EmailField(error_messages={'required': 'Required field.',
'invalid': 'Invalid email.'})
def clean(self):
clean_data = super(RegisterForm, self).clean()
password1 = clean_data.get('password1')
password2 = clean_data.get('password2')
if password1 != password2:
raise forms.ValidationError('Passwords are different.')
return self.cleaned_data
def clean_email(self):
email = self.cleaned_data.get('email')
username = self.cleaned_data.get('username')
if email and User.objects.filter(email=email).exclude(
username=username).exists():
raise forms.ValidationError('Email already used.')
return email
class Meta:
model = User
fields = ('username', 'password1', 'password2', 'email')
Please, let me know if you need more info.
You don't have a field called 'password' in your form - you just have 'password1' and 'password2' - so nothing is saved to the model object's actual password field. So, when you do self.object.set_password(self.object.password), you're actually setting a blank password.
Instead, you should get the value from your form's password1 field:
self.object.set_password(self.form.cleaned_data['password1'])

Custom authentication not logging in user with correct password

I have a user in my database with the login jim#test.com and password jimrox. I'm trying to log him in with this view:
def login(request):
email = request.POST.get("email", "")
password = request.POST.get("password", "")
user = authenticate(username=email, password=password)
My custom authentication looks partly like this:
class login(object):
def authenticate(self, username=None, password=None):
# auth user based on email
try:
user = Freelancer.objects.get(email=username)
if user.check_password(password):
return user
except User.DoesNotExist:
return None
When the user attempts to check_password() it doesn't return the user even though the password is correct. Am I meant to create my own check_password() function in the model?
Here is my model also:
class FreelancerManager(BaseUserManager):
def create_user(self, email, date_of_birth, password=None):
"""
Creates and saves a User with the given email, date of
birth and password.
"""
if not email:
raise ValueError('Users must have an email address')
user = self.model(
email=self.normalize_email(email),
date_of_birth=date_of_birth,
)
user.set_password(password)
user.save(using=self._db)
return user
class Freelancer(AbstractBaseUser):
email = models.EmailField()
first_name = models.CharField(max_length=128, primary_key=True)
surname = models.CharField(max_length=128)
university = models.CharField(max_length=256)
verified = models.BooleanField(default=False)
created_date = models.DateTimeField(default=timezone.now)
USERNAME_FIELD = 'email'
If I am meant to create my own password check, how would I do that? This is with 1.8 also.
EDIT
Here is how I add my users to the database:
views.py
def freelancer_signup(request):
if request.method == 'POST':
form = FreelancerForm(request.POST)
if form.is_valid():
freelancer = form.save(commit=False)
freelancer.save()
return render(request, 'freelancestudent/index.html')
else:
return render(request, 'freelancestudent/index.html')
else:
form = FreelancerForm()
return render(request, 'freelancestudent/freelancersignup.html', {'form': form})
forms.py
from django import forms
from models import Freelancer
class FreelancerForm(forms.ModelForm):
class Meta:
model = Freelancer
password = forms.CharField(widget=forms.PasswordInput)
fields = ('email', 'first_name', 'surname', 'university', 'password')

Django custom user creation form

I'm trying to create a new user in my Django app but nothing happens. I'm using a custom user auth model. Part of the code I edited from the docs. Why the error message "Users must have an email address" is reported by the model and not the forms? Why am I not able to create a user? I don't get any error back.
My model:
from django.db import models
from django.contrib.auth.models import BaseUserManager, AbstractBaseUser
from django.utils import timezone
class MyUserManager(BaseUserManager):
def create_user(self, email, name, neighborhood, password=None):
if not email:
raise ValueError('Users must have an email address')
user = self.model(
email=self.normalize_email(email),
name=name,
neighborhood=neighborhood
)
user.set_password(password)
user.save(using=self._db)
return user
def create_superuser(self, email, name, neighborhood, password):
user = self.create_user(
email=email,
name=name,
password=password,
neighborhood=neighborhood
)
user.is_admin = True
user.save(using=self._db)
return user
class MyUser(AbstractBaseUser):
name = models.CharField(max_length=255)
email = models.EmailField(max_length=255, unique=True)
created_at = models.DateTimeField(default=timezone.now, blank=True)
neighborhood = models.CharField(max_length=255)
consultant_id = models.IntegerField(null=True)
moip_id = models.IntegerField(null=True)
is_active = models.BooleanField(default=True)
is_admin = models.BooleanField(default=False)
objects = MyUserManager()
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['name', 'neighborhood']
def __str__(self):
return self.name
def get_full_name(self):
return self.name
def get_short_name(self):
return self.name
def has_perm(self, perm, obj=None):
return True
def has_module_perms(self, app_label):
return True
#property
def is_staff(self):
"Is the user a member of staff?"
# Simplest possible answer: All admins are staff
return self.is_admin
My form:
from django import forms
from django.contrib.auth.forms import ReadOnlyPasswordHashField
from dashboard.models import MyUser
class UserCreationForm(forms.ModelForm):
password = forms.CharField(label='Senha', widget=forms.PasswordInput)
confirm_password = forms.CharField(label='Confirmar senha', widget=forms.PasswordInput)
class Meta:
model = MyUser
# Note - include all *required* MyUser fields here,
# but don't need to include password and confirm_password as they are
# already included since they are defined above.
fields = ('email', 'name', 'neighborhood',)
def clean(self):
cleaned_data = super(UserCreationForm, self).clean()
password = cleaned_data.get('password')
confirm_password = cleaned_data.get('confirm_password')
if password and confirm_password and password != confirm_password:
raise forms.ValidationError('As senhas nao batem.')
def save(self, commit=True):
user = super(UserCreationForm, self).save(commit=False)
user.set_password(self.cleaned_data['password'])
if commit:
user.save()
return user
And my view:
from django.shortcuts import render
from frontend.forms import UserCreationForm
# Create your views here.
def register(request):
message = None
if request.method == 'POST':
form = UserCreationForm(request.POST)
if form.is_valid():
form.save()
return render(request, 'frontend/register.html', {'message': message})
So far I know, you do not raise error from forms, you just -
1) add the error in it, then it automatically gets invalided by django and is posted back with error and also
2) since you are overriding the clean method you must return the cleaned data. So change the clean method with these details -
def clean(self):
cleaned_data = self.cleaned_data
password = cleaned_data.get('password')
confirm_password = cleaned_data.get('confirm_password')
if password and confirm_password and password != confirm_password:
#raise forms.ValidationError('As senhas nao batem.') => we do not raise error in form clean, instead we add it in validation error.
self.add_error('confirm_password', 'As senhas nao batem.')
return super(UserCreationForm, self).clean() # =>this line is IMPORTANT to not break the calling hierarchy
a little shorter -
def clean(self):
if self.cleaned_data['password'] != self.cleaned_data['confirm_password']:
self.add_error('confirm_password', 'Password & Confirm Password must match.')
return super().clean()
Sine you are not returning anything, the cleaned_data of your form is empty and thus django is returning you back to the form page with no data in it.

Extending user model form with custom fields

Upon signup, I'd like to request the user for:
Full name (I want to save it as first and last name though)
Company name
Email
Password
I've read through dozens of similar situations on StackOverflow. In models.py, I extend the User model like so:
# models.py
class UserProfile(models.Model):
company = models.CharField(max_length = 50)
user = models.OneToOneField(User)
def create_user_profile(sender, instance, created, **kwargs):
if created:
profile, created = UserProfile.objects.get_or_create(user=instance)
post_save.connect(create_user_profile, sender=User)
Source: Extending the User model with custom fields in Django
I've also added:
# models.py
class SignupForm(UserCreationForm):
fullname = forms.CharField(label = "Full name")
company = forms.CharField(max_length = 50)
email = forms.EmailField(label = "Email")
password = forms.CharField(widget = forms.PasswordInput)
class Meta:
model = User
fields = ("fullname", "company", "email", "password")
def save(self, commit=True):
user = super(SignupForm, self).save(commit=False)
first_name, last_name = self.cleaned_data["fullname"].split()
user.first_name = first_name
user.last_name = last_name
user.email = self.cleaned_data["email"]
if commit:
user.save()
return user
And in views.py:
# views.py
#csrf_exempt
def signup(request):
if request.method == 'POST':
form = SignupForm(request.POST)
if form.is_valid():
new_user = form.save()
first_name, last_name = request.POST['fullname'].split()
email = request.POST['email']
company = request.POST['company'],
new_user = authenticate(
username = email,
password = request.POST['password']
)
# Log the user in automatically.
login(request, new_user)
Right now, it doesn't store the company name. How do I do that?
user_profile = new_user.get_profile()
user_profile.company = company
user_profile.save()
Don't forget to configure your UserProfile class in settings so Django knows what to return on user.get_profile()

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