New JSONField will be added in Django 1.9, it can be used with PostgreSQL >= 9.4. Let's try to work with it and find out, in what situations it can be useful.
Currently django 1.9 alpha is available, final version is scheduled on December 2015. Alpha can be installed with pip:
pip install --pre django
Now imagine that we have an e-commerce site, where we offer products of different types. For example ...