Django Basics

Contributors
Rishabh Singh / @stalwart201
Shashank Aryan / @arlok31
Shweta Suman / @cosmologist10
Mannu Gupta / @theparadoxer02
Shashank Kumar / @realslimshanky
Shivam Sharma / @shivams334

What is Django?

Why Django

  • Ridiculously fast
  • Fully loaded
  • Reassuringly secure
  • Exceedingly scalable
  • Incredibly versatile

what is Framework?

  • A web framework (WF) or web application framework (WAF) is a software that is designed to support the development of web applications
  • It includes web services, web resources and web APIs. Web frameworks aim to alleviate the overhead associated with common activities performed in web development

Types of Framework

  • Oracle Application Development Framework
  • Financial modeling applications
  • Earth system modeling applications
  • Decision support systems
  • Multimedia framework - Media playback and authoring
  • Ajax framework / JavaScript framework
  • Web framework
  • Application framework - General GUI applications
  • Middleware
  • Cactus Framework - High performance scientific computing
  • Enterprise Architecture framework

Various other Web frameworks on Python.

  • Flask
  • Bottle
  • Zope
  • Pyramid
  • CubicWeb
  • Web.py
  • Web2.py

Installing Django

  • Install pip
  • Install Django via pip

Installing pip on Linux

  • For Fedora users:
  • $ sudo dnf install pip

  • For Debian users:
  • $ sudo apt-get install pip

Installing Django on Linux

$ sudo pip install django

To check the instaled version of Django on Linux

$ pyhton -m django --version

Creating a project on Django

  • Create a directory named Django
  • Open the path in terminal

  • $ django-admin startproject mysite
  • 'mysite' is the name of the project

    • Obtain repo

    git init

    git clone "url"

    Installing Django on Linux

    $ sudo pip install django

    To check the instaled version of Django on Linux

    $ pyhton -m django --version

    Creating a project on Django

  • Create a directory named Django
  • Open the path in terminal

  • $ django-admin startproject mysite
  • 'mysite' is the name of the project

    • Obtain repo

    git init

    git clone "url"

    Installing Django on Linux

    $ sudo pip install django

    To check the installed version of Django on Linux

    $ pyhton -m django --version

    Creating a project on Django

  • Create a directory named Django
  • Open the path in terminal

  • $ django-admin startproject mysite
  • 'mysite' is the name of the project

    • Creating an app in Django Project

  • The django project is made up of different apps
  • In Terminal change your working directory to Django Project directory
  • Type the following code

  • $ python manage.py startapp 'Appname'

    • Urls in django

  • A URL is simply a web address
  • You can see a URL every time you visit a website
  • It is visible in your browser's address bar
  • urls.py file is made in mysite folder to link all urls

    • Views in Django

  • A view function, or view for short, is simply a Python function that takes a Web request and returns a Web response
  • This response can be the HTML content of a Web page, or a redirect, or a 404 error, or an XML document, or an image or anything

    • What is a Template ?

  • A template is simply a text file. It can generate any text-based format (HTML, XML, CSV, etc.)
  • A template contains variables, which get replaced with values when the template is evaluated, and tags
  • These tags control the logic of the template

    • Forms handling in django

  • Display an HTML form with automatically generated form widgets (like a text field or date picker)
  • Check submitted data against a set of validation rules
  • Redisplay a form in case of validation errors
  • Convert submitted form data to the relevant Python data types

    • Django admin site

  • To add, edit and delete the posts we've just modeled, we will use Django admin
  • The admin is enabled in the default project template used by startproject
  • To Register a model to the Admin

  • from django.contrib import admin

  • from .models import model

  • admin.site.register(Modelame)

    • Books/Blogs References

  • Below are some references you should go to get in-depth knowledge about Django

  • Django Girls Tutorial

  • Two Scoops Of Django

  • Tango With Django

  • Mastering Django

    • Videos References

  • Below are some video series that will give you a headstart in Django

  • Coding Entrepreneurs - Try Django

  • The New Boston - Django Tutorials for Beginners

  • Sentdex - Django Web Development with Python

  • Mike Hibbert - Python Django tutorial

    • Thank You