ldc-lionor/app/Models/Shop.php

<?php

namespace App\Models;

use App\Enums\SignsEnum;
use App\Lib\Helpers\ToolboxHelper;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Shop extends Model
{
    use HasFactory;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'name',
        'signs',
        'address',
        'city',
        'postcode',
        'latitude',
        'longitude',
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'signs' => SignsEnum::class,
    ];

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     */
    protected static function booted()
    {
        // * EVENT CLOSURES.
        static::creating(function (self $model) {
            // * ASSERTIONS
            self::assertFieldIsUnique('name', $model->name);
        });
        static::updating(function (self $model) {
            // * ASSERTIONS
            self::assertFieldIsUnique('name', $model->name, $model->id);
        });
    }

    /**
     * Asserts using validation that the field is unique.
     *
     * @param string       $nameField
     * @param string       $valueField
     * @param integer|null $id
     * @return void
     */
    private static function assertFieldIsUnique(string $nameField, string $valueField, ?int $id = null)
    {
        $table = (new self())->getTable();
        ToolboxHelper::assertFieldIsUnique($table, $nameField, $valueField, $id);
    }
}