Hi all in this post I’will show you how to create a simple login and user registration application
using django.
To create this application I have used django 1.5.0
First open a terminal or console.
So lets create a project called ‘myapp’ using the following command.
Next we have to create an app in myapp project, lets say the name of the app is ‘login’.
So to do this first go to the myapp directory using ‘cd myapp’ then
enter the following command.
See the following picture.
And this will create your application.
Next I have used a sqlite database for myapp. So now open the settings.py file (myapp > myapp > settings.py)
modify the following lines to use a database. And the name of the database file is loginapp.sqlite.
Now you need to sync the datadabe, to do this go to the terminal and enter the following command.And also
create a superuser.
See the following picture.
Now you need to define the path of your template directory in the settings.py file. To do this add the following line
into your TEMPLATE_DIRS directive.
Next you have to add your application name i.e. login into INSTALLED_APPS directive. To do this see the following code.
And also add following lines into your settings.py file. The utility of this two lines is if a user want to access
a method that that requires login and the user is not logged in then it will redirect the user to login page.
Now create a file called forms.py inside login folder. And paste the folowing code into that file.
This code is used to create the registration form.
Next open the views.py file and paste the following code into there.
Now create a folder called templates inside login folder.
Next create a file called base.html inside templates folder and paste the following code in that file.
Aslo create a file called home.html inside templates folder and paste the following code in that file.
Next create a folder called registration inside templates folder.
Create a file called login.html inside the registration folder and paste the following code in that file.
Next create a file called register.html inside the registration folder and paste the following code in that file.
Next create a file called success.html inside the registration folder and paste the following code in that file.
Finally you need to modify the urls.py file. So open that file and paste the following code in that file.
Now to run th app go to the terminal and enter the following commnad.
And to view the application open a browser and go to the following url
http://127.0.0.1:8000/
using django.
To create this application I have used django 1.5.0
First open a terminal or console.
So lets create a project called ‘myapp’ using the following command.
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| django-admin.py startproject myapp |
So to do this first go to the myapp directory using ‘cd myapp’ then
enter the following command.
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| django-admin.py startapp login |
And this will create your application.
Next I have used a sqlite database for myapp. So now open the settings.py file (myapp > myapp > settings.py)
modify the following lines to use a database. And the name of the database file is loginapp.sqlite.
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| import osBASE_DIR = os.path.dirname(os.path.abspath(__file__))DATABASES = { 'default': { 'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'. 'NAME': BASE_DIR + '/loginapp.sqlite', # Or path to database file if using sqlite3. # The following settings are not used with sqlite3: 'USER': '', 'PASSWORD': '', 'HOST': '', # Empty for localhost through domain sockets or '127.0.0.1' for localhost through TCP. 'PORT': '', # Set to empty string for default. }} |
Now you need to sync the datadabe, to do this go to the terminal and enter the following command.And also
create a superuser.
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| python manage.py syncdb |
Now you need to define the path of your template directory in the settings.py file. To do this add the following line
into your TEMPLATE_DIRS directive.
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| TEMPLATE_DIRS = ( # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates". # Always use forward slashes, even on Windows. # Don't forget to use absolute paths, not relative paths. os.path.join(os.path.dirname(__file__), 'templates'),) |
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| INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.messages', 'django.contrib.staticfiles', # Uncomment the next line to enable the admin: # 'django.contrib.admin', # Uncomment the next line to enable admin documentation: # 'django.contrib.admindocs', 'login',) |
a method that that requires login and the user is not logged in then it will redirect the user to login page.
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| import django.contrib.authdjango.contrib.auth.LOGIN_URL = '/' |
This code is used to create the registration form.
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| #files.pyimport refrom django import formsfrom django.contrib.auth.models import Userfrom django.utils.translation import ugettext_lazy as _class RegistrationForm(forms.Form): username = forms.RegexField(regex=r'^\w+$', widget=forms.TextInput(attrs=dict(required=True, max_length=30)), label=_("Username"), error_messages={ 'invalid': _("This value must contain only letters, numbers and underscores.") }) email = forms.EmailField(widget=forms.TextInput(attrs=dict(required=True, max_length=30)), label=_("Email address")) password1 = forms.CharField(widget=forms.PasswordInput(attrs=dict(required=True, max_length=30, render_value=False)), label=_("Password")) password2 = forms.CharField(widget=forms.PasswordInput(attrs=dict(required=True, max_length=30, render_value=False)), label=_("Password (again)")) def clean_username(self): try: user = User.objects.get(username__iexact=self.cleaned_data['username']) except User.DoesNotExist: return self.cleaned_data['username'] raise forms.ValidationError(_("The username already exists. Please try another one.")) def clean(self): if 'password1' in self.cleaned_data and 'password2' in self.cleaned_data: if self.cleaned_data['password1'] != self.cleaned_data['password2']: raise forms.ValidationError(_("The two password fields did not match.")) return self.cleaned_data |
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| #views.pyfrom login.forms import *from django.contrib.auth.decorators import login_requiredfrom django.contrib.auth import logoutfrom django.views.decorators.csrf import csrf_protectfrom django.shortcuts import render_to_responsefrom django.http import HttpResponseRedirectfrom django.template import RequestContext@csrf_protectdef register(request): if request.method == 'POST': form = RegistrationForm(request.POST) if form.is_valid(): user = User.objects.create_user( username=form.cleaned_data['username'], password=form.cleaned_data['password1'], email=form.cleaned_data['email'] ) return HttpResponseRedirect('/register/success/') else: form = RegistrationForm() variables = RequestContext(request, { 'form': form }) return render_to_response( 'registration/register.html', variables, )def register_success(request): return render_to_response( 'registration/success.html', )def logout_page(request): logout(request) return HttpResponseRedirect('/')@login_requireddef home(request): return render_to_response( 'home.html', { 'user': request.user } ) |
Next create a file called base.html inside templates folder and paste the following code in that file.
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| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html> <head> <title>Django Login Application | {% block title %}{% endblock %}</title> </head> <body> <h1>{% block head %}{% endblock %}</h1> {% block content %}{% endblock %} </body></html> |
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| {% extends "base.html" %}{% block title %}Welcome to Django{% endblock %}{% block head %}Welcome to Django{% endblock %}{% block content %} <p>Welcome {{ user.username }} !!!</p> <a href="/logout/">Logout</a>{% endblock %} |
Create a file called login.html inside the registration folder and paste the following code in that file.
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| {% extends "base.html" %}{% block title %}Login{% endblock %}{% block head %}Login{% endblock %}{% block content %} {% if form.errors %} <p>Your username and password didn't match. Please try again.</p> {% endif %} <form method="post" action=".">{% csrf_token %} <table border="0"> <tr><th><label for="id_username">Username:</label></th><td>{{ form.username }}</td></tr> <tr><th><label for="id_password">Password:</label></th><td>{{ form.password }}</td></tr> </table> <input type="submit" value="Login" /> <input type="hidden" name="next" value="/home" /> </form> <a href="/register">Register</a>{% endblock %} |
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| {% extends "base.html" %}{% block title %}User Registration{% endblock %}{% block head %}User Registration{% endblock %}{% block content %} <form method="post" action=".">{% csrf_token %} <table border="0"> {{ form.as_table }} </table> <input type="submit" value="Register" /> </form> <a href="/">Login</a>{% endblock %} |
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| {% extends "base.html" %}{% block title %}Registration Successful{% endblock %}{% block head %} Registration Completed Successfully{% endblock %}{% block content %} Thank you for registering. <a href="/">Login</a> {% endblock %} |
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| from django.conf.urls import patterns, include, urlfrom login.views import *urlpatterns = patterns('', url(r'^$', 'django.contrib.auth.views.login'), url(r'^logout/$', logout_page), url(r'^accounts/login/$', 'django.contrib.auth.views.login'), # If user is not login it will redirect to login page url(r'^register/$', register), url(r'^register/success/$', register_success), url(r'^home/$', home),) |
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| python manage.py runserver |
http://127.0.0.1:8000/
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