Mongoengine Document.update() example

Question

Assuming that Venue is:

from mongoengine import *
from mongoengine_extras.fields import  AutoSlugField
class Venue(Document):
    name = StringField(required=True)
    venue_slug = AutoSlugField()

I want to update all my venue_slug fields based on the name. I try:

for v in Venue.objects():
    v(venue_slug = str(v.name)).update()

But I get:

v(venue_slug = str(v.name)).update()
TypeError: Error when calling the metaclass bases
'Venue' object is not callable

Is my update function correct? If you are not familiar with AutoSlugField() could you write an example for a StringField() update?

Answer 1

Your code incorrect. Try:

for v in Venue.objects():
    v.update(set__venue_slug=str(v.name))

See documentation: http://docs.mongoengine.org/guide/querying.html#atomic-updates.