[FIXED] model_to_dict() with a @property field is not being included

Issue

I am trying to include a field that is a property in the model_to_dict fields list.

class Person(models.Model):
    thumbnail = models.ImageField(upload_to='bla...')

    ...snipped...

    @property
    def thumbnail_url(self):
        return self.thumbnail.url

    def toJSON(self):
        return model_to_dict(self, fields=[..., 'thumbnail_url',...])

When I call Person.toJSON() it does not include thumbnail_url field.

What is wrong?

Thank you.

Solution

This is my current fix. I am open to another approach that works cleaner with model_to_dict()

@property
def thumbnail_url(self):
    return self.thumbnail.url

def toJSON(self):
    return {
        **model_to_dict(self, fields=['all', 'my', 'fields']),
        **{'thumbnail_url': self.thumbnail_url }
          }

Answered By - kvothe__