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Array SubDocs don't save on `document.save()`

See original GitHub issue

It seems that array subdocs don’t save on top-level document.save(). They only persist their changes on findOneAndUpdate/findByIdAndUpdate/ any update operation that bypasses document validation, and only when using $set.

Here’s a repo to reproduce:

https://github.com/varunjayaraman/mongoose-save-array-bug/tree/master

Edit: Sorry, forgot to mention This error occurred on v4.6.0 and v4.5.2

Issue Analytics

State:
Created 7 years ago
Reactions:2
Comments:8 (2 by maintainers)

Top GitHub Comments

6reactions

VictorGerritsenQLVRcommented, Sep 20, 2016

I’ve had a similar problem in the past and managed to solve it by marking that property as modified using:

parent.markModified('children')
parent.save();

1reaction

sobafuchscommented, Feb 15, 2017

@numbergames basically change detection on modifying array indexes using something like parentDoc.subDoc[index] = value won’t work. You have to use document.set() instead

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