Get JetEngine Related Items programmatically / Update related items / Get/Update relation meta

get-related.md

Methods

All these are to be called on 'init' action with the priority of 12 or later
Before init 12 there are no relations registered

Get relation object

This is to get Relation object by its ID (https://prnt.sc/zCOroTie86bL)
(object of this class \jet-engine\includes\components\relations\relation.php)

Necessary to work with relation

   $relation = jet_engine()->relations->get_active_relations( $rel_id ); 

Get related items

These are to get parents/children of the Post/CCT/Term/User from above-mentioned relation object
$object_id - ID of the object for which you need to get parents/children;
$field - 'ids' to return array of related items IDs, 'all' to return array of rows from database

   $field = 'ids';
   $related_ids = $relation->get_parents( $object_id, $field );
   $related_ids = $relation->get_children( $object_id, $field );

Returns related items for given object. Automatically detects - we need to get children or parent items by object.
pass object as a first argument, not object id

   $related_ids = $relation->get_related_items_for_object( $object );

Update related items

Set relation update context - 'parent' or 'child'

   $relation->set_update_context( 'parent' );

Update relation

   $relation->update( $parent_object_id, $child_object_id );

Delete parents / children

if $parent_object_id is empty - delete all rows for current relations which have $child_object_id
if $child_object_id is empty - delete all rows for current relations which have $parent_object_id
CAUTION: if both empty - all rows for the relation will be deleted
$clear_meta - true / false, whether to delete associated meta; default true

   $relation->delete_rows( $parent_object_id, $child_object_id, $clear_meta )

---

Get meta value by key for parent+child pair

   $relation->get_meta( $parent_object_id, $child_object_id, $meta_key );

Update meta for parent+child pair

   $relation->update_meta( $parent_object_id, $child_object_id, $meta_key, $meta_value );

Delete meta for parent+child pair

   $relation->delete_meta( $parent_object_id, $child_object_id, $meta_key );

Hooks

Before connection items

add_action( 'jet-engine/relation/update/before', function( $parent_object_id, $child_object_id, $relation ) {

}, 0, 3 );

runs before connecting items with relation
$parent_object_id, $child_object_id - IDs of items
$relation - object of Relation class

After connecting items

add_action( 'jet-engine/relation/update/after', function( $parent_object_id, $child_object_id, $item_id, $relation ) {

}, 0, 4 );

runs after connecting items with relation
$parent_object_id, $child_object_id - IDs of items
$item_id - ID of inserted record
$relation - object of Relation class

Hi folks,
I'm using the jet-engine/relation/update/after action to add an ID to a meta field when a relation is connected. However, when the relation is disconnected, the ID doesn't get removed.

Is there any JetEngine action hook that runs specifically when a relation is disconnected?

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