Django | Python For Web Development by Global Emenwa & IfeanyiChukwu Ejike

Author:Global, Emenwa & IfeanyiChukwu, Ejike
Language: eng
Format: epub
Published: 2022-07-14T00:00:00+00:00

Chapter 4 - Create Your First Database-Driven App And Use The Django Admin

In this chapter, we'll build a basic Message Board application where users can post and read short messages. This will be the first time we use a database. We'll look at Django's powerful built-in admin interface, which lets us change our data in a way that is easy to understand. After adding tests, we'll push our code to GitHub and put the app on Heroku.

Thanks to the powerful Object-Relational Mapper (ORM) in Django, there is built-in support for MySQL, PostgreSQL, Oracle, MariaDB, and SQLite as database backends. As developers, we can write the same Python code in a models.py file, and it will automatically be turned into the correct SQL for each database. Only the DATABASES section of our settings.py file that is inside the django project folder needs to be changed. This really is a great feature!

Django uses SQLite by default for local development because it is a file-based database and, therefore, much easier to use than the other database options, which require a separate server to run in addition to Django.

Initial Setup

At this point in the book, we've already set up a few Django projects, so we can quickly go through the basic commands to start a new one. Here's what we need to do:

Create a folder called message-board to store our code.

Make a new project called django_project and install Django in a virtual environment.

Make a new Django app called posts

update the settings file at django project/settings.py.

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