Web development django (1)

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Web framework

• What is a Web Framework?

A web framework is a server-side application
framework , that is designed to support the
development of dynamic websites web
applications web services and resources

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More about web Framework

• A Python web framework is a code library,
• that makes the life of a web application
  developer much easier
• for building flexible, scalable and maintainable
  web applications.
• A web development framework is a set of resources
  and tools for software developers to build and
  manage web applications, web services and
  websites.

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Why Django ?

• Tight Integration between Components
• Object-Relational Mapper (ORM)
• Automatic Administration Interface Multi-Lingual
  Support

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Introduction to Django framework.

• There are following frameworks in Python.
• Django
• CherryPy
• pylons
• Flask
• Bottle
• Pyramid
• Cubic Web
• GAE framework

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What is Django Framework ?

• Django is basically a high-level Python web
  application framework that enables the rapid
  development of web applications.
• It achieves so with pragmatic, much cleaner
  design in comparison of other frameworks.
• Django takes care of the difficult stuff so that
  you can concentrate on building your web
  applications.

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MVT Pattern

• How does Django Work?
• Django follows the MVT design pattern (Model
  View Template).
• MVT stands for Model View Template.
• MVT architecture is the software design pattern
  used by the Django web framework.

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Model

• In Django, the data is delivered as an Object
  Relational Mapping (ORM)
• which is a technique designed to make it easier
  to work with databases.
• Django, with ORM, makes it easier to communicate
  with the database, without having to write
  complex SQL statements.

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View

• A view is a function or method that takes
• http requests as arguments
• imports the relevant model(s)
• and finds out what data to send to the template
• and returns the final result.
• The views are usually located in a file called
  views.py.

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Templates

• A template is a file where you describe how the
  result should be represented.
• Templates are often .html files, with HTML code
  describing the layout of a web page.
• but it can also be in other file formats to
  present other results, but here we will
  concentrate on .html files.
• URLs
• When a user requests a URL, Django decides which
  view it will send it to.
• This is done in a file called urls.py.

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Installation

• Django can be easily install using python's
  package manager.
• before installation of django you must have
  python and pip.
• first open the terminal and execute the following
  commands for installation.
• pip install django

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Project

• Create a project in django
• open the terminal and navigate a folder in your
  system where you want to create a project.
• Django-admin startproject djangoProject

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• this command will create a project named
  "djangoProject" in your folder.
• and here is your first django project.

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Project

• creating Home page using django framework.
• open the terminal and navigate a folder in your
  system where you want to create a project.
• django-admin startproject HomeProject

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• cd HomeProject
• Create app of our project
• python manage.py startapp myapp
• code .
• it will open the project in coding app in your
  system.

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Application Register
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• create a folder named "Templates" in Application.
• After creating Templates create a new file named
  "home.html".

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• After creating a file make their view in
  views.py.

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• create a url for http response.

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• Then run your project using this commands
• Open new terminal
• python manage.py runserver
• follow the link.

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And here is your project
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Creating a webApp
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• Creating navbar of webapp

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• Code for navbar

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• Adding data in web app using django models
• Create a model in floder named models.py

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• Model Migrations
• Open new terminal and execute the following
  commands
• Python manage.py makemigrations

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• - python manage.py migrate

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Model Registration

• Open a folder named admin.py in application
• Import the created Model in admin.py.

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• Register the model

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• Import the model in views.py

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• Adding content using cards

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• Defined code for image card

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Cards
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• Adding content

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• Footer for webapp

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• Creating footer for project

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Admin-panel in Django

• Creating admin panel of webapp
• Open new terminal and follow the given commands
• Python manage.py createsuperuser

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Admin panel
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• Added data in panel

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• Adding dynamic data to web using MVT architecture.

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• Creating template for Page

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• Create html file in folder named Templates in
  application
• And follow the code

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• Creating a view for template
• Click to python file named views.py
• And create the view for template

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• Getting URL for specific created http
  response(view)
• Click to python file named Urls.py
• Add views from application
• And give a path

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Static

• Adding Static files in web app
• Click to settings.py and follow the defined code

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• Then move to urls.py and follow the steps for
  static image

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Thank you
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