Verde-Web/app/Models/TeamMember.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class TeamMember extends Model
{
    use HasFactory;

    public const ROLE_DRIVER = 'driver';
    public const ROLE_HELPER = 'helper';
    public const ROLE_SCANNER = 'scanner';
    public const ROLE_LEAD = 'lead';

    protected $fillable = [
        'team_id', 'user_id', 'role_in_team',
        'assigned_from', 'assigned_until',
    ];

    protected function casts(): array
    {
        return [
            'assigned_from' => 'date',
            'assigned_until' => 'date',
        ];
    }

    public function team(): BelongsTo
    {
        return $this->belongsTo(CollectionTeam::class, 'team_id');
    }

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }
}