Validate that a nested key has children

[rvirani1]

If I have a number of children elements nested as items, how do I write a validation that at least one child exists?

For example, if my fields look like the following:

export const fields = [
   'date',
  'items[].itemType',
  'items[].size',
  'items[].flightsOfStairs',
  'place',
  'startTime'
];

How do I validate that there is at least one item?

[erikras]

There is not currently a way to attach an error to an array, since arrays aren't really fields. #486 #762

The current least-worst solution is to use the form-wide _error key.

[rvirani1]

Got it. I can make that work for now.

[erikras]

Good news! Array validation errors in v6.0.0-alpha-7.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.