Python Wagtail Version Upgrade: v2.7 to v6.2 (Including PostgreSQL, Celery, Celery Beat)

Preparing for the Python Wagtail 6.2

Python Wagtail from version 2.7 to 6.2 is a crucial step to enhance performance, security, and compatibility with modern Django versions. However, this process requires careful execution, especially when working with PostgreSQL, Celery, and Celery Beat. This guide provides a step-by-step approach to ensure a seamless upgrade while minimizing potential issues.

Why Python to Wagtail 6.2?

Key Improvements:

• Django Compatibility: Wagtail 6.2 is fully compatible with Django 4.x and 5.x, ensuring access to the latest Django features and security updates.
• Performance Enhancements: The upgraded version delivers a faster admin panel, optimized database queries, and improved API response times.
• Security Fixes: Regular patches help protect your application from vulnerabilities.
• Deprecated Methods Removed: Outdated functions like ModelAdminGroup have been removed, ensuring cleaner and more efficient code.

Prerequisites for the Upgrade

Before proceeding with the upgrade, ensure the following:

• Backup Your Data: Create a full backup of your PostgreSQL database and project files to prevent data loss.
• Use a Separate Branch: Implement the upgrade in a separate Git branch to maintain stability in your production environment.
• Set Up a Virtual Environment: Activate a virtual environment for dependency management and compatibility assurance.
• Upgrade pip: Ensure you have the latest version of pip installed:

Upgrade Python

Wagtail 6.2 requires at least Python 3.8. If you’re using an older version, upgrade Python first:
python –version # Check your current version
sudo apt update && sudo apt install python3.8

If you’re using Docker, update the Dockerfile to use python:3.12.

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Upgrade Django

Wagtail 6.2 requires Django 4.x or later. If your project is using an older Django version, upgrade it:

pip install –upgrade django

Check the installed version:

python -m django –version

Upgrade Wagtail

Now, upgrade Wagtail from 2.7 to 6.2:

pip install –upgrade wagtail==6.2

Confirm the upgrade:

Python -m wagtail –version

Update PostgreSQL Database

Run migrations to ensure compatibility with the new Wagtail version:

python manage.py makemigrations

python manage.py migrate

Check your database settings in settings.py and update them if needed:

DATABASES = {

‘default’: {

     ‘ENGINE’: ‘django.db.backends.postgresql’,

     ‘NAME’: ‘your_database’,

     ‘USER’: ‘your_username’,

        ‘PASSWORD’: ‘your_password’,

     ‘HOST’: ‘localhost’,

     ‘PORT’: ‘5432’,

}

}

Restart PostgreSQL

sudo systemctl restart postgresql

Upgrade Celery and Celery Beat

Ensure you have the latest versions of Celery and Celery Beat installed:

pip install –upgrade celery django-celery-beat
pip install –upgrade celery django-celery-beat

Update your Celery configuration in settings.py:

CELERY_BROKER_URL = ‘redis://localhost:6379/0’
CELERY_ACCEPT_CONTENT = [‘json’]
CELERY_TASK_SERIALIZER = ‘json’

Restart Celery and Celery Beat:

celery -A your_project_name worker –loglevel=info
celery -A your_project_name beat –loglevel=info

Fix Deprecated Features

Some changes in Wagtail 6.2 require code updates:

• Replace PageChooserPanel with FieldPanel and PageChooser.
• Replace ImageChooserPanel with FieldPanel and AdminImageChooser.
• Update StreamFieldPanel usage.
• Modify admin model registration since ModelAdminGroup is deprecated.

Test and Debug

Run your tests to check for issues:
python manage.py test
python manage.py test
Check logs and resolve any errors.