backbone pageable trait khusus eloquent model untuk mempermudah ngambil collection untuk backbone paginator

BackbonePageableTrait.php

<?php

/**
 * BACKBONE PAGEABLE TRAIT
 * Trait untuk dipake di Eloquent Model
 * untuk sedikit mempermudah paging collection
 * si Backbone Paginator (https://github.com/backbone-paginator/backbone.paginator)
 */

trait BackbonePageableTrait {

	public static function getPageableCollection($query_or_cols = array('*'), \Closure $queryModifier = null)
	{
		$page = intval(array_get($_GET, 'page', 1));
		$limit = intval(array_get($_GET, 'per_page', 25));
		$sortkey = array_get($_GET, 'sort_key', 'id');
		$order = intval(array_get($_GET, 'order', 1));

		$offset = $limit * ($page - 1);

		if(is_array($query_or_cols)) {
			$query = static::select($query_or_cols);
		} else {
			$query = $query_or_cols;
		}

		if($queryModifier) {
			$query = call_user_func($queryModifier, $query);
		}

		return $query->orderBy($sortkey, $order? 'ASC':'DESC')
		->skip($offset)
		->take($limit)
		->get();
	}

}