Question

I have one problem with users menu. So, I want, that authenticated user can see his/her profile page and logout (links) in menu. It works (when I logging in) on index page: index, page1, profile, logout ,but, if I go to the, for example, page1 I can see in menu: index, page1, login, not profile and logout. How to fix it?

in urls:

url(r'^accounts/login/$', 'django.contrib.auth.views.login' ),
url(r'^accounts/logout/$', 'django.contrib.auth.views.logout_then_login' ),
url(r'^accounts/profile/$', 'my_app.views.profile' ),

in views:

def profile(request):
    if  not request.user.is_authenticated():
        return HttpResponseRedirect("/accounts/login/")        
    else:
        user = request.user.is_authenticated()
        return  render_to_response('profile.html',locals()) 

Part of index.html:

{% if user.is_authenticated or request.user.is_authenticated %}
    <li><a href="/accounts/profile/">Profile</a></li>
    <li><a href="/accounts/logout/">logout</a></li>
{% else %}
    <li><a href="/accounts/login/">login</a></li>
{% endif %}

login.html:

{% extends "index.html" %}
{% load url from future %}

{% block application %}

{% if form.errors %}
<p>Try one more time</p>
{% endif %}

<form method="post" action="{% url 'django.contrib.auth.views.login' %}">
{% csrf_token %}
<table>
<tr>
    <td>{{ form.username.label_tag }}</td>
    <td>{{ form.username }}</td>
</tr>
<tr>
    <td>{{ form.password.label_tag }}</td>
    <td>{{ form.password }}</td>
</tr>
</table>

<input type="submit" value="Login" />
<input type="hidden" name="next" value="{{ next }}" />
</form>

{% endblock %}

profile.html:

{% extends "index.html" %}
{% block application %}
{% if request.user.is_authenticated %}
    <p>Welcome, {{ request.user.username }}. Thanks for logging in.</p>
{% else %}
    <p>Welcome, new user. Please log in.</p>
{% endif %}
{% endblock %}

page1.html:

{% extends "index.html" %}
{% block application %}
some for loops here
{% endblock %}

views for page1:

def car(request):
    all_cars = Car.objects.all().filter(active=1).values('id', 'name')
    return render_to_response('page1.html', {'all_cars': all_cars})

Answer 1

You don’t have to manually pass user when rendering the template. Try doing this.

In view.py:

from django.contrib.auth.decorators import login_required
from django.shortcuts import render

@login_required
def profile(request):
    return render(request, 'profile.html')

In settings.py

LOGIN_URL = '/accounts/login/'

In index.html:

{% if user.is_authenticated %}
    <li><a href="/accounts/profile/">Profile</a></li>
    <li><a href="/accounts/logout/">logout</a></li>
{% else %}
    <li><a href="/accounts/login/">login</a></li>
{% endif %}

In profile.html

{% extends "index.html" %}
{% block application %}
{% if user.is_authenticated %}
    <p>Welcome, {{ user.username }}. Thanks for logging in.</p>
{% else %}
    <p>Welcome, new user. Please log in.</p>
{% endif %}
{% endblock %}

In page1 view:

from django.shortcuts import render
from django.contrib.auth.decorators import login_required
# If you want only authenticated users to access this page
@login_required
def car(request):
    all_cars = Car.objects.all().filter(active=1).values('id', 'name')
    return render(request, 'page1.html', {'all_cars': all_cars})

PS: I strongly suggest you to use named urls and use url names instead
of hardcoding urls.