sfp_api_laravel_ginastica_cerebro/app/Models/Group.php

<?php

namespace App\Models;

use App\Enums\DefaultStatusEnum;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\SoftDeletes;

class Group extends Model
{
    use HasFactory, SoftDeletes;

    protected $table = 'groups';

    protected $guarded = ['id'];

    protected $casts = [
        'status'     => DefaultStatusEnum::class,
        'created_at' => 'datetime',
        'updated_at' => 'datetime',
        'deleted_at' => 'datetime',
    ];

    public function units(): BelongsToMany
    {
        return $this->belongsToMany(Unit::class, 'group_units');
    }
}