[Neos] Elasticsearch: Index the presence of an ImageVariant Property

[Daniel Lienert]

Hi all, 

I have a kind of blog entry with a property "storyHeaderImage" which is of type ImageVariant. I'd like to teaser blogEntries with an headerImage set within a slider and so I try to index the presence of this property in elasticsearch. 

Image properties are not indexed by default, so I configured the indexing within the blogEntry like this:

---

    'storyHeaderImage':
      type: 'TYPO3\Media\Domain\Model\ImageVariant'
      ui:
        label: 'Story Header Image'
        reloadIfChanged: true
        inspector:
          group: 'storyProperties'

    '_storyHeaderImage':
      search:
        elasticSearchMapping:
          type: string
          include_in_all: false
        indexing: '${(node.storyHeaderImage ? "set" : "missing")}'

---

Gist with correct indentation: https://gist.github.com/daniellienert/d7ea2a9fcb04b21d9298

But this is not working. Every entry is indexed with "missing" although an image is set.

Can anyone give me a hint?

Thanks in advance,
Daniel
-- 
TYPO3 related: http://daniel.lienert.cc | http://yag-gallery.de