Bug report

What I did

I have a select2_from_ajax_multiple which represent n-n relationship and this field is optional but when I try to submit the form without filling the field it crashes

What I expected to happen

the record should be saved and the relation should be empty

What happened

it crashes array_values() expects parameter 1 to be array, null given

What I’ve already tried to fix it

after some investigation I found that the issue happens because the form is sending empty string when the field is empty so in app/Library/CrudPanel/Traits/Create.php the null escapes doesn’t work I suggest to make it like so $values = (isset($relationDetails['values'][$relationMethod]) && !empty($relationDetails['values'][$relationMethod])) ? $relationDetails['values'][$relationMethod] : []; that way wether the value is null or the value is empty it becomes []

Is it a bug in the latest version of Backpack?

After I run composer update backpack/crud the bug… is it still there?

Yes

Backpack, Laravel, PHP, DB version

When I run php artisan backpack:version the output is:

PHP VERSION:

PHP 7.4.21 (cli) (built: Sep 30 2021 13:37:02) ( NTS ) Copyright © The PHP Group Zend Engine v3.4.0, Copyright © Zend Technologies with Xdebug v2.9.8, Copyright © 2002-2020, by Derick Rethans

LARAVEL VERSION:

v8.83.19@4264f2ee12330bdb1be050998f58ba7271236395

BACKPACK VERSION:

5.1.4@4539c787a2e052d2e2e2c00188c38432dc2a7ea9