Get Relationship data before update

[Professor93M]

Dears,

how to get relationship data in the Edit Page, because if I used handleRecordUpdate or mutateFormDataBeforeSave I can't catch the the relation data, and it will be already updated after these methods.

What I want to do is:
before updating the data I want to check the old data and the new data and compare them before update.
So how I can get the relationship data before it is updated to handle it?

Thanks.

[leandrocfe]

I think you can set ->dehydrated(true) in your relationship field and use handleRecordUpdate on your Edit Page to get the record, data and customize the process

protected function handleRecordUpdate(Model $record, array $data): Model
{
    //now you can access $data['yourRelationship']...
    $record->update($data);
    return $record;
}

[Professor93M]

thank you for your reply,

But my problem is still not fixed, the problem is that I want to catch the relation data before updating.
because after I dd the $data in this method it returns the updated data for the relationship.
and I want the old relation data before update.

[leandrocfe]

I think you can use saveRelationshipsUsing() in your relationship

->saveRelationshipsUsing(static function ($component, Model $record, $state) {
    
    //$record->yourRelationship  original data
    //$state current data
    
    $newState = [1, 2, 3];

    $relationship = $component->getRelationship();
    $relationship->sync($newState); //associate, attach, etc..
})

[jwhoami]

It seems to me that the saveRelationshipUsing is called first and then the handleRecordUpate.

However, is it possible to prevent handleRecordUpdate from running in case saveRelationshipUsing fails
due to some business logic?

Thanks

[kpsanmao]

Problem solved?