reading-notes

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Readings: Intro to Django

What is Django?

Django is a high-level Python web framework that enables rapid development of secure and maintainable websites. The Django web framework is a free, open source framework that can speed up development of a web application being built in the Python programming language.The Django web framework, deployed on a web server, can help developers quickly produce a web frontend that’s feature-rich, secure and scalable.

The Structure of a Django Website:

A Django website consists of a single project that is split into separate apps. The idea is that each app handles a self-contained function that the site needs to perform. As an example, imagine an application like Instagram. There are several different functions that need to be performed:

• User management: Login, logout, register, and so on
• The image feed: Uploading, editing, and displaying images
• Private messaging: Private messages between users and notifications

  Django Model-View-Controller Pattern (MVC):

• Model defines the data structure. This is usually a database and is the base layer to an application.
• View displays some or all of the data to the user with HTML and CSS.
• Controller handles how the database and the view interact.

Starting with Django :

1. Creating a project(WSL):

    django-admin startproject mysite
   

2. The development server(WSL):

    python manage.py runserver
   

3. Creating the app(WSL):

    python manage.py startapp app_name
   

4. Write your first view:

    from django.http import HttpResponse
   
   
    def index(request):
      return HttpResponse("Hello, world") in the app_name file include the following code : 
   
    from django.urls import path
    from . import views
   
    urlpatterns = [
        path('', views.index, name='index'),
    ] The next step is to point the root URLconf at the polls.urls module. In mysite/urls.py, add an import for django.urls.include and insert an include() in the urlpatterns list, so you have:
   
    from django.contrib import admin
    from django.urls import include, path
   
    urlpatterns = [
        path('app_name/', include('app_name.urls')),
        path('admin/', admin.site.urls),
    ]