Setting NULL values into both the price and price_currency associated field into the database when inserting an empty Money() value?

[swiss-knight]

Hello,

I'm facing an error when trying to insert an empty Money value (corresponding to a MoneyField in my model) into a PostgreSQL database. The field value is set as: "price_field": None

Here is the error:

django.db.utils.DataError: value too long for type character varying(3)

So I also tried to set it to an empty money object: "price_field": Money() but then it raises:

TypeError: __init__() missing 1 required positional argument: 'currency'

The same error occurs when trying to use "price_field": Money(None,None).

Hence my question: how to correctly set a NULL into both the price and price_currency associated field into the database when inserting an empty Money() value?

Many thanks.