Createview – Class Based Views Django

Create View refers to a view (logic) to create an instance of a table in the database. We have already discussed basics of Create View in Create View – Function based Views 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 a class based views with few lines only. This is where Object Oriented Programming comes into impact.

Django Create View – Class Based Views

Illustration of How to create and use create view using an Example. Consider a project named geeksforgeeks having an app named geeks.



Refer to the following articles to check how to create a project and an app in Django.

After you have a project and an app, let’s create a model of which we will be creating instances through our view. In geeks/models.py,

filter_none

edit
close

play_arrow

link
brightness_4
code

# import the standard Django Model
# from built-in library
from django.db import models
   
# declare a new model with a name "GeeksModel"
class GeeksModel(models.Model):
  
    # fields of the model
    title = models.CharField(max_length = 200)
    description = models.TextField()
  
    # renames the instances of the model
    # with their title name
    def __str__(self):
        return self.title

chevron_right


After creating this model, we need to run two commands in order to create Database for the same.

Python manage.py makemigrations
Python manage.py migrate

Class Based Views automatically setup everything from A to Z. One just needs to specify which model to create Create View for and the fields. Then Class based CreateView will automatically try to find a template in app_name/modelname_form.html. In our case it is geeks/templates/geeks/geeksmodel_form.html. Let’s create our class based view. In geeks/views.py,

filter_none

edit
close

play_arrow

link
brightness_4
code

from django.views.generic.edit import CreateView
from .models import GeeksModel
  
class GeeksCreate(CreateView):
  
    # specify the model for create view
    model = GeeksModel
  
    # specify the fields to be displayed
  
    fields = ['title', 'description']

chevron_right


Now create a url path to map the view. In geeks/urls.py,

filter_none

edit
close

play_arrow

link
brightness_4
code

from django.urls import path
  
# importing views from views..py
from .views import GeeksCreate
urlpatterns = [
    path('', GeeksCreate.as_view() ),
]

chevron_right


Create a template in templates/geeks/geeksmodel_form.html,

filter_none

edit
close

play_arrow

link
brightness_4
code

<form method="POST" enctype="multipart/form-data">
  
    <!-- Security token -->
    {% csrf_token %}
  
    <!-- Using the formset -->
    {{ form.as_p }}
      
    <input type="submit" value="Submit">
</form>

chevron_right


Let’s check what is there on http://localhost:8000/
django-create-view-function-based

Now let’s try to enter data in this form,
create-view-function-enter-data

Bingo.! Create view is working and we can verify it using the instance created through the admin panel.
django-mopdel-created-create-view
This way one can create create view for a model in Django.



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.