Do you have experience creating custom migrations in Django for database schema changes?

Yes, in Django projects I have created custom migrations to manage database changes. Usually, Django automatically generates migrations, but sometimes it is necessary to write a migration manually, for example, for complex changes or data.

Example of creating a custom migration:

1. Create a migration file in the migrations folder of your app.
2. Define a migration class with operations methods, where you can use RunPython to execute arbitrary code.

from django.db import migrations

def forwards_func(apps, schema_editor):
    MyModel = apps.get_model('myapp', 'MyModel')
    MyModel.objects.create(name='Example')

def backwards_func(apps, schema_editor):
    MyModel = apps.get_model('myapp', 'MyModel')
    MyModel.objects.filter(name='Example').delete()

class Migration(migrations.Migration):
    dependencies = [
        ('myapp', '0001_initial'),
    ]

    operations = [
        migrations.RunPython(forwards_func, backwards_func),
    ]

This approach allows for more flexible migration control, including data modification, not just database structure.