Hello @acf-support 🙂 !
It’s exactly the type of field I use : the relationship one 🙂 ! It returns an array of objects.
In your example, they query only on 1 ID. I need to query if at least one author is the author of a book. So here is what I want :
$lawyers_ids contains an array of multiple objects of the “author” CPT. I would like to query the books that have at least one of these authors in their “books_authors” relationship field.
Thank you in advance,
Cédric