<?php /** * Add eloquent queries single(), singleOrFail(), singleOrNew() */ namespace App\Traits; use Illuminate\Database\Eloquent\Builder; use Illuminate\Database\Eloquent\ModelNotFoundException; trait SingleOrFail { private static function bootSingleOrFail() { // 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 $result->first(); } if ($x == 0) throw new ModelNotFoundException('Query brings back 0 record(s) called for singleOrFail()'); else throw new \Exception(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 $result->first(); } return NULL; }); // When a query should return 1 object, or NULL if it doesnt Builder::macro('singleOrNew',function ($args) { $result = $this->where($args)->get(); if ($result->count() == 1) { return $result->first(); } return $this->newModelInstance($args); }); } }