Django Dumpdata One

Custom dumpdata command which allows to exporting from given fields of a model and filter that data using standard Django lookups for filtering.

The exported data structure is compatible with Django dumpdata structure which allows you to use standard loaddata command for import.

Installation

To get the latest stable release from PyPi

pip install django-dumpdata-one

Add dumpdata_one to your INSTALLED_APPS

INSTALLED_APPS = (
    ...,
    "django_dumpdata_one",
)

Usage

Export data:

./manage.py dumpdata_one app_name.model_name --fields=field1,field2 > dump_file.json

Import data:

./manage.py loaddata dump_file.json

How to use filters? If you not familiar take a look at Django Field lookups - https://docs.djangoproject.com/en/3.0/topics/db/queries/#field-lookups

./manage.py dumpdata_one app_name.model_name --fields=field1 --filter=name__icontains=django

./manage.py dumpdata_one app_name.model_name --fields=field1 --filter=name__icontains=django,pk__gt=300

Set order by:

./manage.py dumpdata_one app_name.model_name --fields=field1,field2 --order=field2,field2

Export all fields:

./manage.py dumpdate_one app_name.model_name --fields=*

Limit number of exported records:

./manage.py dumpdata_one app_name.model_name --fields=* --limit=10

Export full file URL:

./manage.py dumpdata_one app_name.model_name --fields=image --full_url=image

Export from another database than 'default':

./manage.py dumpdata_one app_name.model_name --database=other_database