fix: Attempt to read property "next_level_experience" on null

[lfcifuentes]

What happened?

Reaching max level and calling nextLevelAt function throws error Attempt to read property "next_level_experience" on null

How to reproduce the bug

I created 4 levels:

Level::add(
     ['level' => 1, 'next_level_experience' => null],
     ['level' => 2, 'next_level_experience' => 100],
     ['level' => 3, 'next_level_experience' => 250],
     ['level' => 4, 'next_level_experience' => 500],
);

implement a route where I do this:

$user = \App\Models\User::find(1);

$user->addPoints(50);
echo $user->getLevel();
echo $user->getPoints();
echo $user->nextLevelAt();

Run api calls to the route repeatedly

When the user reaches the maximum level, call the function nextLevelAt

Environment Variables

LEVEL_CAP_ENABLED=true
LEVEL_CAP=4
LEVEL_CAP_POINTS_CONTINUE=true
AUDIT_POINTS=true

Package Version

0.0.5

PHP Version

8.2.8

Laravel Version

10.10

Which operating systems does with happen with?

macOS

Notes

The error seems to be on line 152 of the vendor/cjmellor/level-up/src/Concerns/GiveExperience.php file when trying to look for a level higher than 4 which is the maximum set in my environment variables.

Could it be that I am missing some configuration?

I am using:

• Docker version 20.10.17, build 100c701
• PHP 8.2-fpm
• Postgres 13

[cjmellor]

Thanks for the report @lfcifuentes -- gonna look into it!