takeawaytown/laravel-uuid

<?php

namespace TakeawayTown\LaravelUuid\Traits;

use TakeawayTown\LaravelUuid\Classes\Uuid;
use Illuminate\Database\Eloquent\ModelNotFoundException;

trait Uuid
{
  /**
   * Boot function from laravel.
   */
  protected static function boot()
  {
    parent::boot();

    static::creating(function ($model) {
      if (!$model->{config('uuid.uuid_column')}) {
        $model->{config('uuid.uuid_column')} = strtoupper(Uuid::generate()->string);
      }
    });

    static::saving(function ($model) {
      $uuid = $model->getOriginal(config('uuid.uuid_column'));
      if ($uuid !== $model->{config('uuid.uuid_column')}) {
        $model->{config('uuid.uuid_column')} = $uuid;
      }
    });
  }

  /**
   * Scope  by uuid
   * @param  string  uuid of the model.
   *
  */
  public function scopeUuid($query, $uuid, $first = true)
  {
    $match = preg_match(Uuid::REGEX, $uuid);

    if (!is_string($uuid) || $match !== 1)
    {
      throw (new ModelNotFoundException)->setModel(get_class($this));
    }

    $results = $query->where(config('uuid.uuid_column'), $uuid);

    return $first ? $results->firstOrFail() : $results;
  }
}