Remove subdocument (atomic update)

[nhim175]

Description

versions:

js-data: 2.10.0
js-data-mongodb: 0.7.0

Steps to reproduce

• Define User resource model
• Assume that a user data:
  { _id: 'XXXX', groups: { groupOne: true, groupTwo: true } }
• Do: User.update('XXXX', {groups: {groupOne: null}})
• Expected result: groupOne gets removed from groups
• End result: groups was overridden and become groups: {groupOne: null}

If there's no way to do atomic update, the code won't scale.

Thanks!

[jmdobry]

@crobinson42 Can you take a look?

[oliverhr]

To update an inner element the right syntax is:

User.update('XXXX', { 'groups.groupOne': null });

But the problem still If you set the value to undefined or null the element remain in the object, so after update you get:

{ _id: 'XXXX', groups: { groupOne: null, groupTwo: true } }

So the question is how remove a property from an object?

Tested with:
js-data: 2.9.0, 2.10.0
js-data-mongodb: 0.7.0

[crobinson42]

We've addressed this in #32 for v1.

I wonder if we make this same fix for v0.x it will break existing code/implementations. Thoughts?

[jmdobry]

0.7.0 is pre-1.0.0, so a breaking change would bump it to 0.8.0

[crobinson42]

stale

[nhim175]

Thanks everyone for supporting me on this 🙏🏻