Html - sign-up:1 Failed to load resource: the server responded with a status of 500 (Internal Server Error)

mangeshvispute
November 12, 2023
199 views
0 votes
2 Answers

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`Title: Internal Server Error (500) on Django Sign-up Page – Need Assistance with is_ajax Attribute Issue

Description:

Hello community,

I’m currently working on a Django project and have run into an Internal Server Error (500) on the sign-up page. After some investigation, it appears to be related to the is_ajax attribute in the views.py file. I’ve included the relevant code snippets and traceback below for your review.`


views.py
class SignUpView(AjaxFormMixin, FormView):
    '''
    Generic FormView with our mixin for user sign-up with reCAPTCHA security
    '''

    template_name = "users/sign_up.html"
    form_class = UserForm
    success_url = "/"

    # reCAPTURE key required in context
    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["recaptcha_site_key"] = settings.RECAPTCHA_PUBLIC_KEY
        return context

    # overwrite the mixin logic to get, check and save reCAPTURE score
    def form_valid(self, form):
        response = super(AjaxFormMixin, self).form_valid(form)
        if self.request.is_ajax():
            token = form.cleaned_data.get('token')
            captcha = reCAPTCHAValidation(token)
            if captcha["success"]:
                obj = form.save()
                obj.email = obj.username
                obj.save()
                up = obj.userprofile
                up.captcha_score = float(captcha["score"])
                up.save()

                login(self.request, obj, backend='django.contrib.auth.backends.ModelBackend')

                # change result & message on success
                result = "Success"
                message = "Thank you for signing up"

            data = {'result': result, 'message': message}
            return JsonResponse(data)

        return response

urls.py
from django.urls import path
from . import views

app_name = "users"
urlpatterns = [
    path('', views.AccountView.as_view(), name="account"),
    path('profile', views.profile_view, name="profile"),
    path('sign-up', views.SignUpView.as_view(), name="sign-up"),
    path('sign-in', views.SignInView.as_view(), name="sign-in"),
    path('sign-out', views.sign_out, name="sign-out"),
]

sign_up.html:
{% extends 'base.html' %}
{% load static %}

{% block extend_head %}
<script src='https://www.google.com/recaptcha/api.js?render={{recaptcha_site_key}}'></script>
{% endblock %}

{% block content %}
<h3>Django Google API Course - Sign Up</h3>

<div class="container">
  <form id="signupform" method="POST" action="/sign-up">
    {% csrf_token %}

    <label for="first_name">First Name</label>
    {{form.first_name}}

    <label for="last_name">Last Name</label>
    {{form.last_name}}

    <label for="username">Username</label>
    {{form.username}}

    <label for="password1">Password</label>
    {{form.password1}}

    <label for="password2">Confirm Password</label>
    {{form.password2}}

    {{form.token}}

    <label class="check-container">Show Passwords
     <input type="checkbox" onclick="showPword()">
     <span class="checkmark"></span>
    </label>

    <button type="submit">Sign up</button>
  </form>
</div>
{% endblock %}

{% block extend_footer %}
<script type="text/javascript">
  // Create a variable that can be used in main.js
  var recaptcha_site_key = '{{recaptcha_site_key|safe}}'
</script>
{% endblock %}


base.html
{% load static %}

<!DOCTYPE html>
<html>
<head>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="preconnect" href="https://fonts.gstatic.com">
  <link href="https://fonts.googleapis.com/css2?family=Courier+Prime&display=swap" rel="stylesheet">
  <link rel="stylesheet" href="{% static 'main.css' %}"></link>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/latest/toastr.css" integrity="sha512-3pIirOrwegjM6erE5gPSwkUzO+3cTjpnV9lexlNZqvupR64iZBnOOTiiLPb9M36zpMScbmUNIcHUqKD47M719g==" crossorigin="anonymous" referrerpolicy="no-referrer" />

  {% block extend_head %}
  {% endblock %}
</head>
<body>
  {% include 'partials/nav.html' %}
  <div class="div-container">
    {% include 'partials/logo.html' %}
    {% block content %}
    {% endblock %}
  </div>
  <script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/latest/toastr.min.js" integrity="sha512-VEd+nq25CkR676O+pLBnDW09R7VQX9Mdiij052gVCp5yVH3jGtH70Ho/UUv4mJDsEdTvqRCFZg0NKGiojGnUCw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
  {% block extend_footer %}
  {% endblock %}
  <script src="{% static 'main.js' %}"></script>
</body>
</html>

Answers

Chosen as BEST ANSWER

mixins.py
from django.conf import settings
from django.shortcuts import redirect
from urllib.parse import urlencode
import requests
import json
import datetime
from humanfriendly import format_timespan
from django.http import JsonResponse


def is_ajax(request):
    return request.META.get('HTTP_X_REQUESTED_WITH') == 'XMLHttpRequest'

def FormErrors(*args):
    '''
    Handles form error that are passed back to AJAX calls
    '''
    message = ""
    for f in args:
        if f.errors:
            message = f.errors.as_text()
    return message
    

def reCAPTCHAValidation(token):

    ''' reCAPTCHA validation '''
    result = requests.post(
        'https://www.google.com/recaptcha/api/siteverify',
         data={
            'secret': settings.RECAPTCHA_PRIVATE_KEY,
            'response': token
         })

    return result.json()



def RedirectParams(**kwargs):
    '''
    Used to append url parameters when redirecting users
    '''
    url = kwargs.get("url")
    params = kwargs.get("params")
    response = redirect(url)
    if params:
        query_string = urlencode(params)
        response['Location'] += '?' + query_string
    return response


class AjaxFormMixin(object):

    '''
    Mixin to ajaxify django form - can be over written in view by calling form_valid method
    '''

    def form_invalid(self, form):
        response = super(AjaxFormMixin, self).form_invalid(form)
        if is_ajax(self.request):
            message = FormErrors(form)
            return JsonResponse({'result':'Error', 'message': message})
        return response

    def form_valid(self, form):
        response = super(AjaxFormMixin, self).form_valid(form)
        if is_ajax(self.request):
            form.save()
            return JsonResponse({'result':'Success', 'message': ""})
        return response





def Directions(*args, **kwargs):
    

    lat_a = kwargs.get("lat_a")
    long_a = kwargs.get("long_a")
    lat_b = kwargs.get("lat_b")
    long_b = kwargs.get("long_b")
    lat_c = kwargs.get("lat_c")
    long_c = kwargs.get("long_c")
    lat_d = kwargs.get("lat_d")
    long_d = kwargs.get("long_d")

    origin = f'{lat_a},{long_a}'
    destination = f'{lat_b},{long_b}'
    waypoints = f'{lat_c},{long_c}|{lat_d},{long_d}'

    result = requests.get(
        'https://maps.googleapis.com/maps/api/directions/json?',
         params={
         'origin': origin,
         'destination': destination,
         'waypoints': waypoints,
         "key": settings.GOOGLE_API_KEY
         })

    directions = result.json()

    if directions["status"] == "OK":

        routes = directions["routes"][0]["legs"]

        distance = 0
        duration = 0
        route_list = []

        for route in range(len(routes)):

            distance += int(routes[route]["distance"]["value"])
            duration += int(routes[route]["duration"]["value"])

            route_step = {
                'origin': routes[route]["start_address"],
                'destination': routes[route]["end_address"],
                'distance': routes[route]["distance"]["text"],
                'duration': routes[route]["duration"]["text"],

                'steps': [
                    [
                        s["distance"]["text"],
                        s["duration"]["text"],
                        s["html_instructions"],

                    ]
                    for s in routes[route]["steps"]]
                }

            
            route_list.append(route_step)
            

    return {
        "origin": origin,
        "destination": destination,
        "distance": f"{round(distance/1000, 2)} Km",
        "duration": format_timespan(duration),
        "route": route_list
        }



views.py
from django.shortcuts import render, redirect, reverse
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.contrib.auth import login, logout, authenticate
from django.conf import settings
from django.http import JsonResponse
from django.views.generic.edit import FormView
from django.views.generic.base import TemplateView
from django.utils.decorators import method_decorator


from django_google_api.mixins import(
    AjaxFormMixin, 
    reCAPTCHAValidation,
    FormErrors,
    RedirectParams,
    is_ajax
    )



from .forms import (
    UserForm,
    UserProfileForm,
    AuthForm,
    )

result = "Error"
message = "There was an error, please try again"


class AccountView(TemplateView):
    '''
    Generic FormView with our mixin to display user account page
    '''
    template_name = "users/account.html"

    @method_decorator(login_required)
    def dispatch(self, *args, **kwargs):
        return super().dispatch(*args, **kwargs)



def profile_view(request):
    '''
    function view to allow users to update their profile
    '''
    user = request.user
    up = user.userprofile

    form = UserProfileForm(instance = up) 

    if is_ajax(request):
        form = UserProfileForm(data = request.POST, instance = up)
        if form.is_valid():
            obj = form.save()
            obj.has_profile = True
            obj.save()
            result = "Success"
            message = "Your profile has been updated"
        else:
            message = FormErrors(form)
        data = {'result': result, 'message': message}
        return JsonResponse(data)

    else:

        context = {'form': form}
        context['google_api_key'] = settings.GOOGLE_API_KEY
        context['base_country'] = settings.BASE_COUNTRY

        return render(request, 'users/profile.html', context)



class SignUpView(AjaxFormMixin, FormView):
    '''
    Generic FormView with our mixin for user sign-up with reCAPTURE security
    '''
    
    template_name = "users/sign_up.html"
    form_class = UserForm
    success_url = "/"

    #reCAPTURE key required in context
    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["recaptcha_site_key"] = settings.RECAPTCHA_PUBLIC_KEY
        return context

    #over write the mixin logic to get, check and save reCAPTURE score
    def form_valid(self, form):
        result = "Error"
        message = "There was an error, please try again"
        response = super(AjaxFormMixin, self).form_valid(form)  
        if is_ajax(self.request):
            token = form.cleaned_data.get('token')
            captcha = reCAPTCHAValidation(token)
            if captcha["success"]:
                obj = form.save()
                obj.email = obj.username
                obj.save()
                up = obj.userprofile
                up.captcha_score = float(captcha["score"])
                up.save()
                
                login(self.request, obj, backend='django.contrib.auth.backends.ModelBackend')

                #change result & message on success
                result = "Success"
                message = "Thank you for signing up"

                
            data = {'result': result, 'message': message}
            return JsonResponse(data)

        return response




class SignInView(AjaxFormMixin, FormView):
    '''
    Generic FormView with our mixin for user sign-in
    '''

    template_name = "users/sign_in.html"
    form_class = AuthForm
    success_url = "/"

    def form_valid(self, form):
        response = super(AjaxFormMixin, self).form_valid(form)  
        if is_ajax(self.request):
            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            #attempt to authenticate user
            user = authenticate(self.request, username=username, password=password)
            if user is not None:
                login(self.request, user, backend='django.contrib.auth.backends.ModelBackend')
                result = "Success"
                message = 'You are now logged in'
            else:
                message = FormErrors(form)
            data = {'result': result, 'message': message}
            return JsonResponse(data)
        return response




def sign_out(request):
    '''
    Basic view for user sign out
    '''
    logout(request)
    return redirect(reverse('users:sign-in'))


Getting same error:
TraceBack:
(myenv) PS C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_api> python manage.py runserver
Watching for file changes with StatReloader
Performing system checks...

Exception in thread django-main-thread:
Traceback (most recent call last):
  File "C:UserslaxmaAppDataLocalProgramsPythonPython311Libthreading.py", line 1038, in _bootstrap_inner
    self.run()
  File "C:UserslaxmaAppDataLocalProgramsPythonPython311Libthreading.py", line 975, in run
    self._target(*self._args, **self._kwargs)
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangoutilsautoreload.py", line 64, in wrapper
    fn(*args, **kwargs)
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocoremanagementcommandsrunserver.py", line 133, in inner_run
    self.check(display_num_errors=True)
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocoremanagementbase.py", line 485, in check
    all_issues = checks.run_checks(
                 ^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocorechecksregistry.py", line 88, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocorechecksurls.py", line 42, in check_url_namespaces_unique
    all_namespaces = _load_all_namespaces(resolver)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocorechecksurls.py", line 61, in _load_all_namespaces
    url_patterns = getattr(resolver, "url_patterns", [])
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangoutilsfunctional.py", line 57, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
                                         ^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangourlsresolvers.py", line 715, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
                       ^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangoutilsfunctional.py", line 57, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
                                         ^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangourlsresolvers.py", line 708, in urlconf_module
    return import_module(self.urlconf_name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaAppDataLocalProgramsPythonPython311Libimportlib__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1206, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1149, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_apidjango_google_apiurls.py", line 26, in <module>
    path('',include('users.urls',namespace="users")),
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangourlsconf.py", line 38, in include
    urlconf_module = import_module(urlconf_module)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaAppDataLocalProgramsPythonPython311Libimportlib__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1206, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1149, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_apiusersurls.py", line 2, in <module>
    from . import views
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_apiusersviews.py", line 12, in <module>
    from did_django_google_api_tutorial.mixins import(
ModuleNotFoundError: No module named 'did_django_google_api_tutorial'
C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_apiusersviews.py changed, reloading.
Watching for file changes with StatReloader
Performing system checks...

System check identified no issues (0 silenced).
November 12, 2023 - 14:04:12
Django version 4.2.7, using settings 'django_google_api.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.

[12/Nov/2023 14:04:15] "GET / HTTP/1.1" 302 0
[12/Nov/2023 14:04:15] "GET /sign-in?next=/ HTTP/1.1" 200 2741
[12/Nov/2023 14:04:15] "GET /static/branding/did_logo.gif HTTP/1.1" 404 1923
[12/Nov/2023 14:04:15] "HEAD /sign-in?next=/ HTTP/1.1" 200 0
[12/Nov/2023 14:04:15] "HEAD /sign-in?next=/ HTTP/1.1" 200 0
[12/Nov/2023 14:04:15] "HEAD /sign-in?next=/ HTTP/1.1" 200 0
[12/Nov/2023 14:04:17] "GET /sign-up HTTP/1.1" 200 3608
[12/Nov/2023 14:04:17] "GET /static/branding/did_logo.gif HTTP/1.1" 404 1923
[12/Nov/2023 14:04:17] "HEAD /sign-up HTTP/1.1" 200 0
[12/Nov/2023 14:04:18] "HEAD /sign-up HTTP/1.1" 200 0
Internal Server Error: /sign-up
Traceback (most recent call last):
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocorehandlersexception.py", line 55, in inner
    response = get_response(request)
               ^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocorehandlersbase.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangoviewsgenericbase.py", line 104, in view
    return self.dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangoviewsgenericbase.py", line 143, in dispatch
    return handler(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangoviewsgenericedit.py", line 153, in post
    return self.form_valid(form)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_apiusersviews.py", line 112, in form_valid
    data = {'result': result, 'message': message}
                      ^^^^^^
UnboundLocalError: cannot access local variable 'result' where it is not associated with a value
[12/Nov/2023 14:04:45] "POST /sign-up HTTP/1.1" 500 87208
C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_apiusersviews.py changed, reloading.
Watching for file changes with StatReloader
Performing system checks...

Exception in thread django-main-thread:
Traceback (most recent call last):
  File "C:UserslaxmaAppDataLocalProgramsPythonPython311Libthreading.py", line 1038, in _bootstrap_inner
    self.run()
  File "C:UserslaxmaAppDataLocalProgramsPythonPython311Libthreading.py", line 975, in run
    self._target(*self._args, **self._kwargs)
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangoutilsautoreload.py", line 64, in wrapper
    fn(*args, **kwargs)
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocoremanagementcommandsrunserver.py", line 133, in inner_run
    self.check(display_num_errors=True)
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocoremanagementbase.py", line 485, in check
    all_issues = checks.run_checks(
                 ^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocorechecksregistry.py", line 88, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocorechecksurls.py", line 42, in check_url_namespaces_unique
    all_namespaces = _load_all_namespaces(resolver)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangocorechecksurls.py", line 61, in _load_all_namespaces
    url_patterns = getattr(resolver, "url_patterns", [])
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangoutilsfunctional.py", line 57, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
                                         ^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangourlsresolvers.py", line 715, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
                       ^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangoutilsfunctional.py", line 57, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
                                         ^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangourlsresolvers.py", line 708, in urlconf_module
    return import_module(self.urlconf_name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaAppDataLocalProgramsPythonPython311Libimportlib__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1206, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1149, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_apidjango_google_apiurls.py", line 26, in <module>
    path('',include('users.urls',namespace="users")),
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project TutorialmyenvLibsite-packagesdjangourlsconf.py", line 38, in include
    urlconf_module = import_module(urlconf_module)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UserslaxmaAppDataLocalProgramsPythonPython311Libimportlib__init__.py", line 126, in import_module
  File "<frozen importlib._bootstrap>", line 1206, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1149, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_apiusersurls.py", line 2, in <module>
    from . import views
  File "C:UserslaxmaOneDriveDesktopdsa and practicelearningdjangoPython Django and Google APIs - Project Tutorialdjango_google_apiusersviews.py", line 94
    message = "There was an error, please try again"
TabError: inconsistent use of tabs and spaces in indentation


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(Edit)

- SteveYonkeu
- November 12, 2023 at 7:15 am
- 0 votes
0
Solution

Your issue with the Internal Server Error (500) on the sign-up page seems to be related to the use of the is_ajax() method in Django. Starting with Django 3.1, is_ajax() is deprecated, and using it can lead to unexpected errors. Here’s how you can resolve this issue:

Replacing is_ajax()

Replace the is_ajax() method with a custom implementation. You can define a function to check if the request is an AJAX call:
```
def is_ajax(request):
    return request.META.get('HTTP_X_REQUESTED_WITH') == 'XMLHttpRequest'
```
Then, use this function in your SignUpView class:
```
# ... other parts of your class ...

def form_valid(self, form):
    response = super(AjaxFormMixin, self).form_valid(form)
    if is_ajax(self.request):  # Use the custom is_ajax function
        # ... rest of your code ...
```
Why This Issue Might Have Arisen
The is_ajax() method was a convenient way to check if the request is an AJAX call. However, it was deprecated because the XMLHttpRequest object, which is used to make AJAX calls, is slowly being replaced by the fetch API in modern web development. Django decided to remove this method to encourage developers to use more up-to-date techniques and because the value of the HTTP_X_REQUESTED_WITH header, which is_ajax() checks, can be easily spoofed, making it unreliable for security-sensitive operations.

Additional Recommendations

Check Django Version: Ensure your project is compatible with the version of Django you are using, especially if it’s 3.1 or later.
Server Logs: Look into your server logs for more specific error details if the issue persists after this change.
Form and AJAX Request Handling: Verify that your form is correctly set up and that AJAX requests are properly formatted and handled.
- NOTE: it is advisable to turn the DEBUG=True when we are trying to get more insights to a question.
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Html – sign-up:1 Failed to load resource: the server responded with a status of 500 (Internal Server Error)

Answers

Solution

Replacing is_ajax()

Additional Recommendations