Django3 ValidationError does not display

Question

I am trying to create user registration in Django but When I enter 2 wrong passwords I can't display a validation error message. Actually, I checked Django documents everything seems good.

I just checked the original source and I couldn't find an error message to override like other fields.

views.py 

from django.shortcuts import render,redirect
from  .forms import RegisterForm

from django.contrib.auth.models import User
from django.contrib.auth import login

# Create your views here.

def register (request):
    if request.method == "post":
        form = RegisterForm(request,POST)
        if form.is_valid():
            username = form.cleaned_data.get("username")
            password = form.cleaned_data.get("password")

            newUser = User(username =username)
            newUser.set_password(password)

            newUser.save()
            login(request,newUser)

            return redirect("index")
        context = {
            "form" : form
        }
        return render(request,"register.html",context)


    else:
        form = RegisterForm()
        context = {
            "form" : form
        }
        return render(request,"register.html",context)

forms.py

from django import forms
from django.core.exceptions import ValidationError

class RegisterForm(forms.Form):
    username = forms.CharField(max_length =50,label = "kullanici adi")
    password = forms.CharField(max_length=20, label = 'parola', widget = forms.PasswordInput)
    confirm = forms.CharField(max_length=20, label= "Parolayi dogrula", widget= forms.PasswordInput)


    def clean(self):
        username = self.cleaned_data.get("username")
        password = self.cleaned_data.get("password")
        confirm = self.cleaned_data.get("confirm")

        if password and confirm and password != confirm :
            raise forms.ValidationError("parola eslesmiyor")

        values = {
            "username" : username,
            "password" : password
        }

        return values

register.html

<!DOCTYPE html>

<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title>login</title>

  </head>
  <body>

    <form method="POST">
      {% csrf_token %}

      {{form.as_p}}
      <br>
      <button type="submit" class="btn btn-danger">Kayit ol</button>
    </form>
  </body>
</html>

score 0 · Answer 1 · answered Mar 18 '21 at 16:39

0

In django template: you need to show

{{form.non_field_errors}}

.

answered Mar 18 '21 at 16:39

Liza Amatya

141
6

score 0 · Answer 2 · answered Mar 18 '21 at 17:10

0

Try returning cleaned_data itself

def clean(self):
    if password and confirm and password != confirm :
        raise forms.ValidationError("parola eslesmiyor")
    return self.cleaned_data

answered Mar 18 '21 at 17:10

Liza Amatya

141
6

By the way, you also have written request,POST instead of request.POST. – Liza Amatya Mar 18 '21 at 17:19
i fixed that thank you but now i have another error after I submit the form – berkay Mar 18 '21 at 17:31
NameError at /user/register/ name 'password' is not defined – berkay Mar 18 '21 at 17:32
Exception Location: C:\Users\berka\OneDrive\Desktop\gmt\bitirme\user\forms.py, line 17, in clean – berkay Mar 18 '21 at 17:33
Which line is line 17 in forms? – Liza Amatya Mar 18 '21 at 17:45
if password and confirm and password != confirm : – berkay Mar 18 '21 at 17:46
That line seems fine to me, maybe try debugging it. – Liza Amatya Mar 18 '21 at 17:50
after i fixed request.POST i tried with old version it solved thank you so much for help – berkay Mar 18 '21 at 19:49

score 0 · Answer 3 · answered May 05 '21 at 04:41

0

Have you tried looping through the form errors? You can check this answer for a detailed explanation: Django Forms: if not valid, show form with error message

answered May 05 '21 at 04:41

Brandon

46
7

Django3 ValidationError does not display

3 Answers3