Class Based Views in Django
Class-based views provide an alternative way to implement views as Python objects instead of functions. They do not replace function-based views, but have certain differences and advantages when compared to function-based views:
- Organization of code related to specific HTTP methods (GET, POST, etc.) can be addressed by separate methods instead of conditional branching.
- Object oriented techniques such as mixins (multiple inheritance) can be used to factor code into reusable components.
Class-based views are simpler and efficient to manage than function-based views. A function-based view with tons of lines of code can be converted into class-based views with few lines only. This is where Object-Oriented Programming comes into impact.
How to use Class based view in Django?
In geeks/views.py,
from django.views.generic.list import ListView
from .models import GeeksModel
class GeeksList(ListView):
# specify the model for list view
model = GeeksModel
Now create a URL path to map the view. In geeks/urls.py,
from django.urls import path
# importing views from views..py
from .views import GeeksList
urlpatterns = [
path('', GeeksList.as_view()),
]
Create a template in templates/geeks/geeksmodel_list.html,
<ul>
<!-- Iterate over object_list -->
{% for object in object_list %}
<!-- Display Objects -->
<li>{{ object.title }}</li>
<li>{{ object.description }}</li>
<hr/>
<!-- If objet_list is empty -->
{% empty %}
<li>No objects yet.</li>
{% endfor %}
</ul>
Let’s check what is there on http://localhost:8000/
Views In Django | Python
Django Views are one of the vital participants of the MVT Structure of Django. As per Django Documentation, A view function is a Python function that takes a Web request and returns a Web response. This response can be the HTML contents of a Web page, a redirect, a 404 error, an XML document, an image, or anything that a web browser can display.
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