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Django Design Patterns and Best Practices

Django Design Patterns and Best Practices

By : Ravindran
4.7 (7)
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Django Design Patterns and Best Practices

Django Design Patterns and Best Practices

4.7 (7)
By: Ravindran

Overview of this book

If you want to learn how best to utilize commonly found patterns and learn best practices in developing applications with Django, this is the book for you. This book, like Django itself, is accessible to amateur and professional developers alike and assumes little in the way of prior experience. Although written for Python 3, the majority of the code in this book works in Python 2 or can be easily translated.
Table of Contents (14 chapters)
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13
Index

Form patterns


Let's take a look at some of the common patterns when working with forms.

Pattern – dynamic form generation

Problem: Adding form fields dynamically or changing form fields from what has been declared.

Solution: Add or change fields during initialization of the form.

Problem details

Forms are usually defined in a declarative style with form fields listed as class fields. However, sometimes we do not know the number or type of these fields in advance. This calls for the form to be dynamically generated. This pattern is sometimes called Dynamic Forms or Runtime form generation.

Imagine a flight passenger check-in system, which allows for the upgrade of economy class tickets to first class. If there are any first-class seats left, there needs to be an additional option to the user if they would like to fly first class. However, this optional field cannot be declared since it will not be shown to all users. Such dynamic forms can be handled by this pattern.

Solution details

Every form...

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