redirect/app/Traits/SingleOrFail.php
2022-10-22 19:16:50 +11:00

46 lines
1.1 KiB
PHP

<?php
/**
* Extend Eloquent so that it includes singleOrFail calls to test that a query returns only 1 record
*/
namespace App\Traits;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\ModelNotFoundException;
trait SingleOrFail
{
public static function bootSingleOrfail(): void
{
// When a query should return 1 object, or FAIL if it doesnt
Builder::macro('singleOrFail',function () {
$result = $this->get();
if (($x=$result->count()) == 1)
return $result->first();
throw new ModelNotFoundException(sprintf('Query brings back %d record(s) called for singleOrFail()',$x));
});
// When a query should return 1 object, or NULL if it doesnt
Builder::macro('single',function () {
$result = $this->get();
if ($result->count() == 1)
return $result->first();
return NULL;
});
// When a query should return 1 object, or setup to create a new object
Builder::macro('singleOrNew',function (array $args=[]) {
$result = $this->where($args)->get();
if ($result->count() == 1)
return $result->first();
return $this->newModelInstance($args);
});
}
}