How to Expand a Reference on the Object Level

6 replies

Last updated: Jan 11, 2023

Hello all, does anyone know why

*[_type == 'hos_chapter' &amp;&amp; references(@-&gt;_id)][0].slug.current

wouldn't work? I've tried

references(^._id)

too but no joy. Full code...

Jan 9, 2023, 1:10 PM

"relHos": relHos[]{
      "id": @-&gt;_id,
      "title": @-&gt;title,
      "status": @-&gt;meta.status,
      "slug": @-&gt;slug.current,
      @-&gt;_type == 'hos' =&gt; {
        "chapter": *[_type == 'hos_chapter' &amp;&amp; references(@-&gt;_id)][0].slug.current
      },
    },

Jan 9, 2023, 1:11 PM

chapter

is returning

null

Jan 9, 2023, 1:16 PM

Also, just to confirm, hardcoding a relevant id does return the chapter, so its something to do with the

@-&gt;

^.

that's causing the issue.

Jan 9, 2023, 1:27 PM

It’ll probably be more performant if you expand the reference on the object level:

relHos[]-&gt;{
  _id,
  title,
  "status": meta.status,
  _type == "hos" =&gt; {
    "chapter":  *[_type == "hos_chapter" &amp;&amp; references(^._id)]
    
  }
}

I’d think in this case that

^._id

should work for you, however you may have to go up another level (

^.^._id

) because of the conditional.

Jan 10, 2023, 9:47 PM

Thanks

user M

- I did actually implement that technique afterwards, not sure why I had it like that initially. And thanks, all sorted and working now 😊

Jan 11, 2023, 9:50 AM

Maybe changed things around when you were debugging? I’ve done that before! 🙂

Jan 11, 2023, 3:56 PM

Sanity.io – build remarkable experiences at scale

Sanity is a customizable solution that treats content as data to power your digital business. Free to get started, and pay-as-you-go on all plans.

Get started Watch demo

How to Expand a Reference on the Object Level

Sanity.io – build remarkable experiences at scale

Categorized in