使用带有 Django.contrib.auth 视图的应用程序名称

Question

I am new to Django and I am creating a user change password page. However, I keep encountering a NoReverseMatch error which I suspect is due to my app name but I am not able to resolve it even after spending hours googling for a solution.

My urls.py file:

from os import name
from django.urls import path
from account import views


from django.contrib.auth import views as auth_views     # Import Django built-in authentication views



app_name    = 'account'

urlpatterns = [
    path('test/', views.test_login, name='test'),
    path('login/', auth_views.LoginView.as_view(), name='login'),
    path('logout/', auth_views.LogoutView.as_view(), name='logout'),
    path('password_change/done/', auth_views.PasswordChangeDoneView.as_view(), name='password_change_done'),
    path('password_change/', auth_views.PasswordChangeView.as_view(), name='password_change'),

]

My settings.py:

# Login Logic
LOGIN_REDIRECT_URL      = 'account:test'    # Tells Django which URL to redirect user to after a successful login if no next parameter is present in the request
LOGIN_URL               = 'account:login'        # The URL to redirect the user to log in - based on the name in the urls.py
LOGOUT_URL              = 'account:logout'       # The URL to redirect the user to log out - based on the name in the urls.py

my html file

{% extends "base.html" %}

{# This is the template to allow user to change their password #}

{% block title %}Change Your Password{% endblock title %}

{% block content %}

    <div class="container">
        <div class="row justify-content-center">
            <div class="col-8">
                <form action="{% url 'account:password_change_done' %}" class="form-signin" method="post">
                {% csrf_token %}

                    <h1 class="h3 mb-3 font-weight-normal text-center">Change your password</h1>

                    <div class="form-group">
                        <label for="old_password">Old Password</label>
                        <input class="form-control" type="password" required id="id_old_password" name="old_password" autocomplete="current-password" placeholder="Old Password" autofocus>
                    </div>

                    <div class="form-group">
                        <label for="new_password1">New Password</label>
                        <input class="form-control" type="password" required id="id_new_password1" name="new_password1" autocomplete="new-password" placeholder="New Password">
                    </div>

                    <div class="form-group">
                        <label for="new_password2">Confirm Password</label>
                        <input class="form-control" type="password" required id="id_new_password2" name="new_password2" autocomplete="new-password" placeholder="Confirm Password">
                    </div>

                    <small class="form-text text-muted">
                        {% if form.new_password1.help_text %}
                            {{ form.new_password1.help_text|safe }}
                        {% endif %}
                    </small>

                    <button type="submit" class="btn btn-primary">Submit</button>
                </form>

                {% if form.errors %}
                    {% for field in form %}
                        {% for error in field.errors %}
                            <div class="alert alert-danger">
                                <strong>{{ error|escape }}</strong>
                            </div>
                        {% endfor %}
                    {% endfor %}
                    {% for error in form.non_field_errors %}
                        <div class="alert alert-danger">
                            <strong>{{ error|escape }}</strong>
                        </div>
                    {% endfor %}
                {% endif %}
            </div>
        </div>
    </div>
{% endblock content %}

Much help is appreciated.

Have added in the html file for referece

Answer 1

A "NoReverseMatch" error means, Django is not being able to process and see the exact url being passed. Including the "app_name" has said by most Django devs makes the code neat and easy to streamline to as to which url you want and most importantly helps to avoid duplicating urls..

An instance will be having this url path of "home" in your app accounts and also having that same path "home" in some other app, the use of specifying the app_name will help Django, include the urls to their respective apps so you know which requires which.

Your urls are correct to me and since it's a NoReverseMatch error, it will have to be your at your html or view or anywhere where you are calling a url.

Try including the app name in either your html and view on where you are calling the url.. Something like this

{% app_name:name_url %} And same to the view app_name:name_url

Always make sure there is semi-colon between the app_name and the url... As it will help you tell Django as to which url from which app!!