ldc-bogt/app/Models/TraceaEgg.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Collection;

class TraceaEgg extends Model
{
    /**
     * The primary key for the model.
     *
     * @var string
     */
    protected $primaryKey = null;

    /**
     * Indicates if the IDs are auto-incrementing.
     *
     * @var boolean
     */
    public $incrementing = false;

    /**
     * Indicates if the model should be timestamped.
     *
     * @var boolean
     */
    public $timestamps = false;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'box_code',
        'ede_code',
        'laying_date',
        'packing_date',
        'product_code',
        'product_label',
        'external_lot',
        'dcr',
        'ean_13'
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array
     */
    protected $casts = [
        'packing_date' => 'date',
        'laying_date' => 'date',
        'dcr' => 'date'
    ];

    /**
     * Accessor codes EDE attribute
     *
     * @return \Illuminate\Database\Eloquent\Collection
     */
    public function getCodeEdesAttribute(): Collection
    {
        return self::select('ede_code')
            ->where('box_code', $this->box_code)
            ->distinct()->get()->pluck('ede_code');
    }
}