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A simple library that enhance 'ModelSerializer' class so that it performs object-level validation for free.

Project description



The scope of this module is to enhance DRF's ModelSerializer class, and provide object-level validation out of the box.

The idea is that the model defines its object-level validation in its clean method. The serializer class ModelSerializer provided by this module, overrides its validate method so that it invokes the model's clean method. Therefore whenever invoking the serializer's is_valid method, the validate method runs and provides the object-level validation.

This way, object-level validation is defined once in the model and is used automatically by the Django admin, the model when explicitly invoking full_clean and the serializer whenever invoking is_valid. This follows the convention for field-level validation. When defined correctly using model validators, the field-level validation is used out of the box by the Django admin, serializer and model.

Proving the validation idea

In this module, we also provide a Django project that will show you how the object level validations works together with Django admin, Serializer, and a model by implementing drf-model-serializer and model clean() method. A main focus of the test project lives on create/update actions over any drinks or main dishes recipe, which all any incoming data either from Admin or Serializer must be validated. See the Recipe model and the tests section to understand it in more detail.


Ensure pip installed on your local machine. If you don't have it, you can follow the installation guide here.

How to run the tests

  1. Open terminal and go to the root directory of where the package live, for instance: $ cd Documents/py-projects/drf-model-serializer.
  2. Run $ ./scripts/ from your command line.
  3. Run $ ./scripts/

How to run the test project

Currently only Recipe admin page that available to be explored, and to try it out you can follow these steps:

  1. Open terminal and go to the root directory of where the package live, for instance: $ cd Documents/py-projects/drf-model-serializer.
  2. Run $ ./scripts/ from your command line (you can skip this if you already did it when running the tests).
  3. Run $ source venv/bin/activate && cd test_project && python migrate.
  4. Create admin user, run $ python createsuperuser --email --username admin.
  5. Run $ python runserver and when server is ready, open the admin page and logged in with the previous Admin account.


$ pip install drf-model-serializer

or add this on your requirements.txt


Get involved!

We are happy to receive bug reports, fixes, documentation enhancements, and other improvements.

Please report bugs via the github issue tracker.

Master git repository drf-model-serializer.

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