Django NanoID Field

NanoID is an alternative to UUID, CUID for generating random IDs. This package provides a field to use in models.

Roadmap

• Create AutoField that uses NanoID instead of regular integer ID.

Installation

Install it from PyPI:

pip install django-nanoid-field

Usage

You can use it in your models like:

from django.db import models
from nanoid_field import NanoidField

class Profile(models.Model):
    hash = NanoidField(max_length=10, alphabet='0123456789abcdefghijklmnopqrstuvwxyz')

NanoidField

This model field is based on CharField. All of it's parameters can be used.

Additionally following fields affects outcome of NanoID:

max_length Parameter (Optional)

Determines size of the generated ID as well as length of the field in Database.

DEFAULT:

21

alphabet Parameter (Optional)

This optional parameter helps you to determine which characters will be used to build up.

DEFAULT:

0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz-

Using NanoidField as primary_key

To use NanoID as default primary_key you need to explicitly define it in your model:

from django.db import models


class SomeModel(models.Model):
    id = NanoidField()
    # ...

A good practice is to create a base model. It also helps you to add generic methods to all of your models.

Create a file named base_model.py one of the root models directory:

from django.db import models


class BaseModel(models.Model):
    id = NanoidField()

    class Meta:
        abstract = True

Then you can exten from it in any model you'd like:

from django.db import models
from app.models.base_model import BaseModel


class Product(BaseModel):
    name = models.CharField()

Changing defaults

django-nanoid-field also provides two settings to change defaults of alphabet and max_length. You can change those by adding them to your settings.py file

# settings.py file

NANOID_ALPHABET = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz-"
NANOID_SIZE = 21