Mongoengine: v0.20.0 TypeError: 'Collection' object is not callable in set_read_write_concern

[kurthaegeman]

On v0.19.1, this works:

from mongoengine import *
class User(Document):
    name = StringField()

connect("mongoenginetest", host="mongomock://localhost")
User.objects(name="Eric").update(name="John")

On the newly released v0.20.0, this fails with

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/Users/kurt/Dropbox/Python/CALEA/calea-processor/venv/lib/python3.8/site-packages/mongoengine/queryset/base.py", line 540, in update
    with set_read_write_concern(
  File "/usr/local/Cellar/[email protected]/3.8.1/Frameworks/Python.framework/Versions/3.8/lib/python3.8/contextlib.py", line 113, in __enter__
    return next(self.gen)
  File "/Users/kurt/Dropbox/Python/CALEA/calea-processor/venv/lib/python3.8/site-packages/mongoengine/context_managers.py", line 270, in set_read_write_concern
    combined_read_concerns = dict(collection.read_concern.document.items())
TypeError: 'Collection' object is not callable

It also fails when using an explicit $set modifier operator with v0.20.0.

User.objects(name="Eric").update(set__name="John")

[bagerard]

Just tried this and the issue isn't there with a regular mongodb, it will need to be investigated but it seems to be related to mongomock somehow

[abarto]

@kurthaegeman mongomock does not support read_concern. I'll push a PR in a bit.

[abarto]

@kurthaegeman PR submitted. https://github.com/mongomock/mongomock/pull/628

[bagerard]

Closing this as issue was in mongomock

[abarto]

@kurthaegeman The fix has been merged into mongomock.

[kurthaegeman]

Unit tests now work (with mongomock-3.19.1.dev17). Nice work!

[lsmar]

@kurthaegeman it is possible to install mongomock-3.19.1.dev17 version with pipenv? I tried but without success.

[alexciornii]

@kurthaegeman Where did you find version 3.19.1.dev17? Last version is 3.19.0. The issue is not fixed.

[kurthaegeman]

@alexciornii I pip-installed it from the git branch.

[alexciornii]

@kurthaegeman Thank you. It works for me too. Just should have been installed from the develop branch.

[deepanshut041]

Hi @alexciornii you can install as shown below

pip install git+https://github.com/mongomock/mongomock.git@develop

As of today, it installs mongomock-3.19.1.dev19 and all unit work.