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How do mongoengine filter field not null?


How do mongoengine filter field not null?

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How do mongoengine filter field not null?
Tag : python , By : bdurbin
Date : December 01 2020, 05:00 PM

it fixes the issue I have the feeling you're mixing up two concepts : filtering documents, and returning document subsets.
Returning a document subsetĀ 
data = Data.objects({'category':{'$ne':''}}).order_by('-datetime')[:500]
data = Data.objects(category__ne='').order_by('-datetime')[:500]

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added new boolean field to an existing django Mongoengine model, but after can not filter for this field


Tag : django , By : PaulPlum
Date : March 29 2020, 07:55 AM
this will help First my django model was like this: , Voila!
This is my answer:

Mongoengine, after dictionary key field.. Mongoengine cannot convert field names to db_fields


Tag : python , By : ArdentRogue
Date : March 29 2020, 07:55 AM
I hope this helps you . OK this looks like a bug, best place to report them is in github: http://github.com/mongoengine/mongoengine
This wont get fixed until 0.7 as it will break existing users in production. So I'll have to write up migration notes as part of the fix.

Update field if is null in mongoengine


Tag : python , By : mitry
Date : March 29 2020, 07:55 AM
I hope this helps . I need to update a field of a Document if such field is None, but I don't want to overwrite it if such field has a value. , Something like this?
Person.objects(name="Foo", address=None).update(set__address="Bar Street, NY")

How to Filter EmbeddedDocument in mongoengine and get value of a field?


Tag : python , By : DonMac
Date : March 29 2020, 07:55 AM

How to apply filter condition on two embedded field in django mongoengine?


Tag : python , By : David Marchant
Date : March 29 2020, 07:55 AM
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