Registration, login, and use of cookies in django1.7

Tag: Django

Create a project and an application

# Django-admin.pystartproject MyAdmin

# Cd MyAdmin

#python manage.py startapp online

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Open the MyAdmin/settings. py file and add the application to it:

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Design Database

Open the MyAdmin/online/models. py file and add the following content:

From Django. DB import models

# Create your models here.

Class user (models. Model ):

Username = models. charfield (max_length = 50)

Password = models. charfield (max_length = 50)

Def _ Unicode _ (Self ):

Return self. Username

Perform the following Database Synchronization:

# Python manage. py syncdb

Operations toperform:

Apply all migrations: Admin, contenttypes, auth, sessions

Runningmigrations:

Applying contenttypes.0001 _ initial... OK

Applying auth.0001 _ initial... OK

Applying admin.0001 _ initial... OK

Applying sessions.0001 _ initial... OK

 

You haveinstalled Django's auth system, and don't have any superusers defined.

Wocould you liketo create one now? (Yes/No): Yes

Username (leaveblank to use 'root'): Root

Email Address: [email protected]

Password:

Password (again ):

Superusercreated successfully.

[[Email protected] # Python manage. py makemigrations

Migrations for 'online ':

0001_initial.py:

-Create model user

[[Email protected] # Python manage. py migrate

Operations toperform:

Apply all migrations: Admin, contenttypes, sessions, auth, online

Runningmigrations:

Applying online.0001 _ initial... OK

ConfigurationURL

Open MyAdmin/URLs. py:

from django.conf.urls import patterns, include, url

from django.contrib import admin

admin.autodiscover()

urlpatterns = patterns(‘‘,

    # Examples:

    # url(r‘^$‘, ‘mysite5.views.home‘, name=‘home‘),

    url(r‘^admin/‘, include(admin.site.urls)),

    url(r‘^online/‘, include(‘online.urls‘)),

)

Create the URLs. py file in the mysite5/online/directory:

from django.conf.urls import patterns, url

from online import views

urlpatterns = patterns(‘‘,

    url(r‘^$‘, views.login, name=‘login‘),

    url(r‘^login/$‘,views.login,name = ‘login‘),

    url(r‘^regist/$‘,views.regist,name = ‘regist‘),

    url(r‘^index/$‘,views.index,name = ‘index‘),

    url(r‘^logout/$‘,views.logout,name = ‘logout‘),

)

Create View

Open the MyAdmin/online/views. py file:

#coding=utf-8

from django.shortcuts import render,render_to_response

from django.http import HttpResponse,HttpResponseRedirect

from django.template import RequestContext

from django import forms

from models import User

# Form

class UserForm(forms.Form):

Username = forms. charfield (Label = 'username', max_length = 100)

Password = forms. charfield (Label = 'Password', widget = forms. passwordinput ())

# Registration

def regist(req):

    if req.method == ‘POST‘:

        uf = UserForm(req.POST)

        if uf.is_valid():

# Obtain form data

            username = uf.cleaned_data[‘username‘]

            password = uf.cleaned_data[‘password‘]

# Add to database

            User.objects.create(username= username,password=password)

            return HttpResponse(‘regist success!!‘)

    else:

        uf = UserForm()

    return render_to_response(‘regist.html‘,{‘uf‘:uf}, context_instance=RequestContext(req))

# Login

def login(req):

    if req.method == ‘POST‘:

        uf = UserForm(req.POST)

        if uf.is_valid():

# Getting the form User Password

            username = uf.cleaned_data[‘username‘]

            password = uf.cleaned_data[‘password‘]

# Compare the obtained form data with the database

            user = User.objects.filter(username__exact = username,password__exact = password)

            if user:

# Jump to index if the comparison is successful

                response = HttpResponseRedirect(‘/online/index/‘)

# Write the username into the browser cookie. The expiration time is 3600.

                response.set_cookie(‘username‘,username,3600)

                return response

            else:

# Comparison failed, still in Login

                return HttpResponseRedirect(‘/online/login/‘)

    else:

        uf = UserForm()

    return render_to_response(‘login.html‘,{‘uf‘:uf},context_instance=RequestContext(req))

# Login successful

def index(req):

    username = req.COOKIES.get(‘username‘,‘‘)

    return render_to_response(‘index.html‘ ,{‘username‘:username})

# Exit

def logout(req):

    response = HttpResponse(‘logout !!‘)

# Clear the cookie and save Username

    response.delete_cookie(‘username‘)

    return response

All registration and login logic are implemented here, And Cookie creation, reading, and deletion operations are used in the middle.

Create Template

First, create the templates directory under the mysite5/online/directory, and then create the regist.html file under the mysite5/online/templates/directory:

<? Xmlversion = "1.0" encoding = "UTF-8"?>

<! Doctypehtml public "-// W3C // dtd xhtml 1.0 strict // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<Htmlxmlns = "http://www.w3.org/1999/xhtml" XML: lang = "en" lang = "en">

<Head>

<Metahttp-equiv = "Content-Type" content = "text/html; charsets = UTF-8"/>

<Title> Registration </title>

</Head>

 

<Body>

<H1> registration page:

<Form method = 'post' enctype = "multipart/form-Data">

{% Csrf_token %}

{UF. as_p }}

<Input type = "Submit" value = "OK"/>

</Form>

<Br>

<Ahref = "http: // 127.0.0.1: 8000/online/login/"> login </a>

</Body>

</Html>

Create a login.html file under MyAdmin/online/templates/directory:

<? Xmlversion = "1.0" encoding = "UTF-8"?>

<! Doctypehtml public "-// W3C // dtd xhtml 1.0 strict // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<Htmlxmlns = "http://www.w3.org/1999/xhtml" XML: lang = "en" lang = "en">

<Head>

<Metahttp-equiv = "Content-Type" content = "text/html; charsets = UTF-8"/>

<Title> login </title>

</Head>

 

<Body>

<H1> logon page:

<Form method = 'post' enctype = "multipart/form-Data">

{% Csrf_token %}

{UF. as_p }}

<Input type = "Submit" value = "OK"/>

</Form>

<Br>

<Ahref = "http: // 127.0.0.1: 8000/online/regist/"> register </a>

</Body>

</Html>

Create the index.html file under MyAdmin/online/templates/directory:

<? Xmlversion = "1.0" encoding = "UTF-8"?>

<! Doctypehtml public "-// W3C // dtd xhtml 1.0 strict // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<Htmlxmlns = "http://www.w3.org/1999/xhtml" XML: lang = "en" lang = "en">

<Head>

<Metahttp-equiv = "Content-Type" content = "text/html; charsets = UTF-8"/>

<Title> </title>

</Head>

 

<Body>

<H1> welcome {username }}! </H1>

<Br>

<Ahref = "http: // 127.0.0.1: 8000/online/logout/"> exit </a>

</Body>

</Html>

Usage

Register

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Login

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Registration, login, and use of cookies in django1.7