Expose parent term id for Taxonomy Term schema

Yep good call

I've exposed parent on the term entity as a recursive reference.

Have a play on dev.

Hmm,
I spot a problem.

If we have multiple taxonomy term types allowed on a field, the queries start to get overly complicated.

{
  nodePages(first:10) {
    nodes {
      tags {
        ... on TermInterface {
          __typename
          name
        }
        ... on TermA {
          parent {
            id
          }
        }
        ... on TermB {
          parent {
            id
          }
        }
        // and so on
      }
    }
  }
}

VS if I just return a union on the parent and add parent to the interface...

{
  nodePages(first:10) {
    nodes {
      tags {
        ... on TermInterface {
          __typename
          name
          parent {
            ... on TermInterface {
              id
            }
          }
        }
      }
    }
  }
}

So I might just do the dirty on this and return a Union

@almunnings,

Thanks for the quick response! It works great.
I think it's fine to limit parents from the same vocabulary only. Drupal core UI does not allow multi-vocab parents anyway.

Ki