1: <?php
 2: /**
 3:  * Wei Framework
 4:  *
 5:  * @copyright   Copyright (c) 2008-2013 Twin Huang
 6:  * @license     http://opensource.org/licenses/mit-license.php MIT License
 7:  */
 8: 
 9: namespace Wei\Validator;
10: 
11: /**
12:  * Check if the input is valid by specified callback
13:  *
14:  * @author      Twin Huang <twinhuang@qq.com>
15:  */
16: class Callback extends BaseValidator
17: {
18:     protected $invalidMessage = '%name% is not valid';
19: 
20:     /**
21:      * The callback to validate the input
22:      *
23:      * @var callback
24:      */
25:     protected $fn;
26: 
27:     /**
28:      * Check if the input is valid by specified callback
29:      *
30:      * @param mixed $input The input value
31:      * @param \Closure|null $fn  The callback to validate the input
32:      * @param string|null $message The custom invalid message
33:      * @return bool
34:      */
35:     public function __invoke($input, \Closure $fn = null, $message = null)
36:     {
37:         $fn && $this->storeOption('fn', $fn);
38:         $message && $this->storeOption('message', $message);
39: 
40:         return $this->isValid($input);
41:     }
42: 
43:     /**
44:      * {@inheritdoc}
45:      */
46:     protected function doValidate($input)
47:     {
48:         if (!call_user_func($this->fn, $input, $this, $this->wei)) {
49:             $this->addError('invalid');
50:             return false;
51:         }
52:         return true;
53:     }
54: 
55:     /**
56:      * Set the invalid message
57:      *
58:      * @param string $message
59:      * @return $this
60:      */
61:     public function setMessage($message)
62:     {
63:         $this->message = $message;
64:         return $this;
65:     }
66: }
67: