Is there a way to reference a top level field for preview?

6 replies
Last updated: Feb 3, 2021

Is there a way to reference a top level field for preview? I am trying to create an image block, and this is my code:

export default {
  name: 'imageObject',
  title: 'Image',
  type: 'image',
  fields: [
    { name: 'caption',
      type: 'simpleBlockContent',
      title: 'Caption',
      options: {
        isHighlighted: true
  options: {
    hotspot: true
  preview: {
    select: {
      title: 'caption',
      media: 'imageObject'
The media for preview is returning nothing.

Feb 3, 2021, 2:45 PM

If I'm remembering correctly, the preview field is for documents and so you'd define it on documents that use the

, not the imageObject itself.

Feb 3, 2021, 3:35 PM

previews also work on non-documents! eg if that type is being used in an array πŸ˜„
this should work:

preview: {
    select: {
      media: 'asset'

Feb 3, 2021, 3:37 PM

(asset is a key created for every image)

Feb 3, 2021, 3:37 PM

user B
that worked! Thanks so much!

Feb 3, 2021, 3:39 PM

Is that in the documentation?

Feb 3, 2021, 3:40 PM

youre welcome πŸ˜ƒ not sure, i think i just found it by trial and error

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