Django ORM Ninja: Advanced Techniques for Developers

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Django ORM Ninja: Advanced Techniques for Developers

Django ORM Ninja: Advanced Techniques for Developers

1. Introduction to Django ORM

Introduction to the Course Introduction to the ORM Start a New Project Initialize a New Project

2. Models, datatypes, and fields

Defining The First Model Field Data Types Define Other Models Migrations Admin Interface

3. Queries

Create Query Retrieve Query Lazy Queries Ordering and Slicing Updating Deleting

4. Relations

Many-to-One ForeignKey Arguments One-to-One Many-to-Many

5. Complex Queries

Field Lookups Q and F Objects Aggregations Annotations Minimazing Database Hints

6. Advanced

Class Meta Constrains Transactions Basics User Model

Define Other Models

Let's continue to create our application. So, we continue to write our Models inside the models.py file.

Note

An id field is automatically added as a primary key for each model instance. You don't need to declare it explicitly in your models.

We haven't created any relations between our Models yet, but we'll address this shortly.

1. In the Book model, you wish to add three new fields: 'publishing_date', 'rating', and 'quantity'. Which combination of field types is the most appropriate for these fields?

2. What is the primary purpose of the 'str' method in a Django model?

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Section 2. Chapitre 3

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