NOT NULL constraint failed: store_customer.first

NOT NULL constraint failed: store_customer.first_name Request Method: GET Request URL: http://127.0.0.1:8000/signup/ Django Version: 4.1.4 Exception Type: IntegrityError Exception Value:
NOT NULL constraint failed: store_customer.first_name

models.py

class Customer(models.Model):

   first_name = models.CharField(max_length=50)
   last_name = models.CharField(max_length=50)
   phone = models.CharField(max_length=50)
   email = models.EmailField(max_length=100)
   password = models.CharField(max_length=500)


   def register(self):
       self.save()

  def __str__(self):
        return self.first_name

views.py

def signup(request):

  if request == 'GET':
      return render(request, 'signup.html')

  else:
    first_name = request.POST.get('firstname')
    last_name = request.POST.get('lastname')
    phone = request.POST.get('phone')
    email = request.POST.get('email')
    password = request.POST.get('password')

    customer = Customer(first_name=first_name, last_name=last_name,phone=phone,email=email,password=password)
    customer.register()

   

    # return HttpResponse( 'signup successful' )
    return render(request, 'signup.html')

CodePudding user response：

Are you sending first name in the form? By default 'models.CharField' has a null and 'blank' option set to false Django ref. - this means that the it need to be set to something different that null when saving.

Your error suggests that the first_name was not sent in POST request (from form).

CodePudding user response：

No need to handle GET requests it's automatically handled by Django Just handle POST requests like this...

models.py

class Customer(models.Model):

    first_name = models.CharField(max_length=50)
    last_name = models.CharField(max_length=50)
    phone = models.CharField(max_length=50)
    email = models.EmailField(max_length=100)
    password = models.CharField(max_length=500)

    def __str__(self):
        return self.first_name

views.py

def signup(request):
    if request == 'POST': #<------- handled POST request
        first_name = request.POST.get('firstname')
        last_name = request.POST.get('lastname')
        phone = request.POST.get('phone')
        email = request.POST.get('email')
        password = request.POST.get('password')
        customer = Customer(first_name=first_name, last_name=last_name,phone=phone,email=email,password=password)
        customer.save()
        return redirect('/signup/')
    return render(request, 'signup.html') #<------- handled GET request