Script for dumping only particular fields of particular django models to JSON

dump_fixtures.py

import sys, os
sys.path.insert(0, os.path.join(os.path.dirname(os.path.abspath(__file__)), 
    "../"))
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'settings')

from django.core import serializers
from django.db.models import get_model
from django.template.defaultfilters import slugify

MODELS_TO_DUMP = (
    {
        "model": "foo.Foobar",
        "fields": ("pk", "title", "slug", "description"),
    },
)

for m in MODELS_TO_DUMP:
    model = get_model(*(m["model"].split(".")))
    
    with open("%s.json" % slugify(m["model"]), "w") as f:
        f.write(serializers.serialize("json", model.objects.all(),
                                            fields = m["fields"]))