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verified publisher icon ryanfitz

Using attribute name "length" in schema causes serializer to fail silently on create

Open ghost opened this issue 10 years ago • 5 comments

I've been tracing the generated params in table.js before they are sent to the docClient, and any time you attempt to use a schema with the attribute name "length" in it, self.serializer.serializeItem(self.schema, attrs) just returns an empty object. Changing the attribute name to something else fixes it.

ghost avatar Jul 17 '15 18:07 ghost

This is on 2.0.0-rc10

ghost avatar Jul 17 '15 19:07 ghost

Thats a wacky bug, I'll look into this asap (probably over the weekend)

ryanfitz avatar Jul 17 '15 20:07 ryanfitz

Wow I wish I would have found this earlier.... It seems to be something in lodash's reduce function

chadkouse avatar Feb 04 '16 05:02 chadkouse

lodash has a function _.isArrayLike() which is used by a number of functions, including _.map. If a collection passed to _.isArrayLike() includes a length property then it will be treated as an array.

See this issue for advice on other methods to use where collection is known to be an object: https://github.com/lodash/lodash/issues/1870

deedw avatar Feb 04 '16 11:02 deedw

This appears to still be an issue as of 2.2.0, I just got bitten by this.

lrettig avatar Mar 13 '17 18:03 lrettig