Empty value on String field is not allowed about vogels HOT 7 CLOSED

https://forums.aws.amazon.com/thread.jspa?threadID=114032

AWS engineer says "The AWS Persistence Framework for Core Data should remove the attribute from the row when an existing attribute is set to nil or an empty string."

hope it helps.

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I say we remove empty strings, we already do a similar check for null values and remove the attribute before sending off to dynamodb

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@ryanfitz actually it fails for null values too. The only way it works is, as @noradaiko pointed, to set it to undefined.

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@ryanfitz actually it fails for null values too. The only way it works is, as @noradaiko pointed, to set it to undefined.

@marko-ciric Setting an attribute to null rightly deletes the attribute from the row for me.

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I'm still having an issue with empty strings on nested properties, does this fix only work on the parent keys?

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Try with:

schema.String('asset').default("")

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I don't think that helps? The problem is that dynamodb doesn't accept empty strings, and vogels is only cleaning up empty strings at the top level of the object (ie it's not doing a deep search):
I think the core problem is that this omit, needs to be some sort of 'omit deep' (unfortunately lodash doesn't have that)
6fd7c2f#diff-50e3aa130a4f97a42ee2cf111c7b1d9dL10

I wonder if there's a way to make it happen at serialisation time rather than as a separate step

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