jessilver_django_seed

A library to facilitate the creation of fake data (seeds) in Django projects, with custom management commands, modularization, selective seeder execution, and easy integration.

Installation

Install from PyPI:

pip install jessilver_django_seed

Requirements

• Python 3.7+
• Django >= 3.2

Configuration

1. Add 'jessilver_django_seed' to your INSTALLED_APPS.
2. In your settings.py, define:

   SEEDER_APPS = [
       'your_app_name',
       # ...other apps
   ]
   

   Each app directory should contain a seeders/ folder with your seeder files.

Seeder Structure

Create Python files in the seeders/ folder of your app. Example:

# myapp/seeders/UserSeeder.py
from jessilver_django_seed.seeders.BaseSeeder import BaseSeeder
from myapp.models import User

class UserSeeder(BaseSeeder):
    @property
    def seeder_name(self):
        return "UserSeeder"
    def seed(self):
        for i in range(10):
            User.objects.create(username=f'user{i}')
        self.succes("10 users created!")

Seed Command

Run all seeders:

python manage.py seed

Selective Execution

Run only specific seeders:

python manage.py seed --only UserSeeder,ProductSeeder

Seeder Creation via CLI

You can create a new seeder file automatically using the management command:

python manage.py seed --create UserSeeder --app myapp

• This will create a file myapp/seeders/UserSeeder.py with a template class if it does not already exist.
• If the app is not listed in SEEDER_APPS in your settings.py, it will be added automatically.
• The command validates the seeder class name and ensures no duplicates.

How it works

• The library looks for all apps listed in SEEDER_APPS.
• For each app, it dynamically loads all Python files in the seeders/ folder.
• It searches for classes ending with Seeder (exemple UserSeeder).

Seed Command

• Argument --only: Runs only the seeders whose class names are provided.
• Interactive confirmation before execution.
• Status messages and summary at the end.

Seeder Execution Order

Seeders are loaded and executed in alphabetical order based on their filename. You can control the execution order by naming your seeder files with numeric or alphabetical prefixes, e.g.:

01_UserSeeder.py
02_ProductSeeder.py

This ensures that seeders run in the desired sequence.

Compatibility

All file and directory operations use Python's os.path.join and standard library functions, ensuring compatibility across Linux, Windows, and MacOS. No hardcoded path separators are used.

Examples

Product Seeder

# myapp/seeders/ProductSeeder.py
from jessilver_django_seed.seeders.BaseSeeder import BaseSeeder
from myapp.models import Product

class ProductSeeder(BaseSeeder):
    @property
    def seeder_name(self):
        return "ProductSeeder"
    def seed(self):
        for i in range(5):
            Product.objects.create(name=f'Product {i}')
        self.succes("5 products created!")

Running only the UserSeeder

python manage.py seed --only UserSeeder

Contributing

Pull requests are welcome! Open issues for suggestions or problems.

License

MIT