Add additionalType

I'm not even sure that would validate.

I ran a quick test in the Google Validator, it does in fact not validate as proposed.
What does validate is this:

    "@context": "http://schema.org",
    "@graph": [
        {
            "@type": "LocalBusiness",
            "@id": "https://www.example.com",
            "image": "https://www.example.com/image.png",
            "name": "Example Corp"
        },
        {
            "@type": "MedicalOrganization",
            "@id": "https://www.example.com",
            "image": "https://www.example.com/image.png",
            "name": "Example Corp"
        },
...

which makes me think the pivoting feature in schema_metatag ought to work here.

Although Google may accept multiple types, I'm not sure that's ideal. I see there is http://schema.org/additionalType which looks like what you would use instead. Note that the JSON LD example on that page looks like this:

<script type="application/ld+json">
{
  "@context":  "http://schema.org/",
  "@id": "#record",
  "@type": "Book",
  "additionalType": "Product",
  "name": "Le concerto",
  "author": "Ferchault, Guy",
  "offers":{
      "@type": "Offer",
      "availability": "http://schema.org/InStock",
      "serialNumber": "CONC91000937",
      "sku": "780 R2",
      "offeredBy": {
          "@type": "Library",
          "@id": "http://library.anytown.gov.uk",
          "name": "Anytown City Library"
      },
      "businessFunction": "http://purl.org/goodrelations/v1#LeaseOut",
      "itemOffered": "#record"
    }
}
</script>

The general guidance everywhere is to use the most specific type, and everything I've ever read used singular. Unless someone can point to "official" contrary documentation, I suggest we refocus this issue around support for additionalType, or else Close (won't fix) it.

That attached patch adds the additionalType field to the Schema.org Organization module.

Rerolled.

Committed. Now needs to be back-ported to D7.

Added to both D7 and D8. Thanks!

Hi, I'm looking to add productontology to product as additionalType, any chance to patch this for product?

@18temujinWest . This issue has been closed. It would be best to open a new issue for your feature request.