uuid

<?php

namespace Scriptburn\ElequentUuid\Traits;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Ramsey\Uuid\Uuid;
/**
 * Trait UuidModel
 * @package App\Traits
 */
trait UuidModel
{
	/**
	 * Binds creating/saving events to create UUIDs (and also prevent them from being overwritten).
	 *
	 * @return void
	 */
    public function getUudFieldName()
    {
        return  "uuid";
    }

   
	public static function bootUuidModel()
	{
		static::creating(function ($model)
		{
			// Don't let people provide their own UUIDs, we will generate a proper one.
			$model->{$model->getUudFieldName()} = Uuid::uuid4()->toString();
		});

		static::saving(function ($model)
		{
			// What's that, trying to change the UUID huh?  Nope, not gonna happen.
			$original_uuid = $model->getOriginal($model->getUudFieldName());

			if ($original_uuid !== $model->{$model->getUudFieldName()})
			{
				$model->uuid = $original_uuid;
			}
		});
	}

	/**
	 * Scope a query to only include models matching the supplied UUID.
	 * Returns the model by default, or supply a second flag `false` to get the Query Builder instance.
	 *
	 * @throws \Illuminate\Database\Eloquent\ModelNotFoundException
	 *
	 * @param  \Illuminate\Database\Schema\Builder $query The Query Builder instance.
	 * @param  string                              $uuid  The UUID of the model.
	 * @param  bool|true                           $first Returns the model by default, or set to `false` to chain for query builder.
	 * @return \Illuminate\Database\Eloquent\Model|\Illuminate\Database\Eloquent\Builder
	 */
	public function scopeUuid($query, $uuid, $first = true)
	{
		if (!is_string($uuid) || (preg_match('/^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/', $uuid) !== 1))
		{
			//p_d($uuid);
			//throw (new ModelNotFoundException)->setModel(get_class($this));
		}
 		$search = $query->where($this->getUudFieldName(), $uuid);
		return $first ? $search->firstOrFail() : $search;
	}

	/**
	 * Scope a query to only include models matching the supplied ID or UUID.
	 * Returns the model by default, or supply a second flag `false` to get the Query Builder instance.
	 *
	 * @throws \Illuminate\Database\Eloquent\ModelNotFoundException
	 *
	 * @param  \Illuminate\Database\Schema\Builder $query The Query Builder instance.
	 * @param  string                              $uuid  The UUID of the model.
	 * @param  bool|true                           $first Returns the model by default, or set to `false` to chain for query builder.
	 * @return \Illuminate\Database\Eloquent\Model|\Illuminate\Database\Eloquent\Builder
	 */
	public function scopeIdOrUuId($query, $id_or_uuid, $first = true)
	{
		if (!is_string($id_or_uuid) && !is_numeric($id_or_uuid))
		{
			throw (new ModelNotFoundException)->setModel(get_class($this));
		}

		if (preg_match('/^([0-9]+|[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12})$/', $id_or_uuid) !== 1)
		{
			throw (new ModelNotFoundException)->setModel(get_class($this));
		}

		if (substr_count($id_or_uuid, '-') >= 1)
		{
			$search = $query->where(function ($query) use ($id_or_uuid)
			{
				$query->where($this->getUudFieldName(), $id_or_uuid);
			});
		}
		else
		{
			$search = $query->where(function ($query) use ($id_or_uuid)
			{
				$query->where('id', $id_or_uuid);
			});
		}

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