Bug: Api rule filters bug on multiselect relation fields

[GD-coding]

There seems to be an issue with the multiselect :length operator when using it on relational fields. The below example is not working in my case.

@request.auth.admin = true || users:length = 0 || users.id ?= @request.auth.id

The code works when the user is an admin or is in the list of related fields, but the :length operator is not working when trying to check if the property is empty.

Version 16.9

Thank you for all of the hard work that you do on this project!

[ganigeorgiev]

I suspect that the users field was added at later stage when there were already records in the collections, right? If that's the case then it is possible that default inserted value would be empty ""string and not [] because we currently don't normalize the default/missing value for already inserted data.

I'll have a look at it sometime later today, but as a workaround, if your field doesn't have more than 1 user yet assigned to it, you can try to change the users field to "single" and then back to "multiple" to retrigger the field value normalization.

[ganigeorgiev]

Should be fixed in v0.16.10 release.