How does a Django form convert field values to display in admin?

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I have a yet another json field defined with suitable from_db_value and to_python methods, it loads and stored correctly in the database. I can save them in the database and I can return them as json to the web application.

Looking at the records from the admin, though, the record looks like:

{u'timestamp': u'2015-04-12T13:29:55Z', u'paymentstatus': u'Completed'}

which is the string representation, as computed by str, of the dict saved in the database. When I try to save the record the field tries to convert it to json and fails.

Is there a way that the field on loading gets the value from value_to_string or another method which I can customize to return a proper json dump?

(Versions: Python 2.7, Django 1.8, Postgresql: 9.4)

asked 23 secs ago

Muhammad Alkarouri

8,858

How does a Django form convert field values to display in admin?