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Django 5 By Example

Django 5 By Example

By : Antonio Melé
4.6 (40)
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Django 5 By Example

Django 5 By Example

4.6 (40)
By: Antonio Melé

Overview of this book

If you want to learn Django by doing, this book is for you. Django 5 By Example is the fifth edition of the best-selling franchise that helps you build real-world web apps. This book will walk you through planning and creation, solving common problems, and implementing best practices using a step-by-step approach. You’ll cover a wide range of web application development topics through four different projects: a blog application, a social website, an e-commerce application, and an e-learning platform. Pick up what’s new in Django 5 as you build end-to-end Python web apps, follow detailed project plans, and understand the hows and whys of Django. This is a practical and approachable book that will have you creating web apps quickly.
Table of Contents (20 chapters)
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18
Other Books You May Enjoy
19
Index

Creating forms from models

We need to build a form to let users comment on blog posts. Remember that Django has two base classes that can be used to create forms: Form and ModelForm. We used the Form class to allow users to share posts by email. Now we will use ModelForm to take advantage of the existing Comment model and build a form dynamically for it.

Edit the forms.py file of your blog application and add the following lines:

from .models import Comment
class CommentForm(forms.ModelForm):
    class Meta:
        model = Comment
        fields = ['name', 'email', 'body']

To create a form from a model, we just indicate which model to build the form for in the Meta class of the form. Django will introspect the model and build the corresponding form dynamically.

Each model field type has a corresponding default form field type. The attributes of model fields are taken into account for form validation. By default, Django creates a form field for each field...

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