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1<?php
2/**
3 * Pop PHP Framework (http://www.popphp.org/)
4 *
5 * @link       https://github.com/popphp/popphp-framework
6 * @author     Nick Sagona, III <dev@nolainteractive.com>
7 * @copyright  Copyright (c) 2009-2023 NOLA Interactive, LLC. (http://www.nolainteractive.com)
8 * @license    http://www.popphp.org/license     New BSD License
9 */
10
11/**
12 * @namespace
13 */
14namespace Pop\Acl\Policy;
15
16use Pop\Acl\AclResource;
17
18/**
19 * Policy trait
20 *
21 * @category   Pop
22 * @package    Pop\Acl
23 * @author     Nick Sagona, III <dev@nolainteractive.com>
24 * @copyright  Copyright (c) 2009-2023 NOLA Interactive, LLC. (http://www.nolainteractive.com)
25 * @license    http://www.popphp.org/license     New BSD License
26 * @version    3.4.0
27 */
28trait PolicyTrait
29{
30
31    /**
32     * Evaluate policy
33     *
34     * @param  string      $method
35     * @param  AclResource $resource
36     * @return boolean|null
37     */
38    public function can($method, AclResource $resource = null)
39    {
40        $result  = null;
41        $methods = (strpos($method, ',') !== false) ?
42            array_map('trim', explode(',', $method)) : [$method];
43
44        foreach ($methods as $method) {
45            if (is_callable([$this, $method])) {
46                $result = $this->{$method}($this, $resource);
47            }
48
49            if ($result === false) {
50                return false;
51            }
52        }
53
54        return $result;
55    }
56
57}