Source of file Callback.php
Size: 3,818 Bytes - Last Modified: 2014-03-12T23:21:18+01:00
/home/theseer/Downloads/ZendFramework-2.3.0/library/Zend/Validator/Callback.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151 | <?php /** * Zend Framework (http://framework.zend.com/) * * @link http://github.com/zendframework/zf2 for the canonical source repository * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ namespace Zend\Validator; class Callback extends AbstractValidator { /** * Invalid callback */ const INVALID_CALLBACK = 'callbackInvalid'; /** * Invalid value */ const INVALID_VALUE = 'callbackValue'; /** * Validation failure message template definitions * * @var array */ protected $messageTemplates = array( self::INVALID_VALUE => "The input is not valid", self::INVALID_CALLBACK => "An exception has been raised within the callback", ); /** * Default options to set for the validator * * @var mixed */ protected $options = array( 'callback' => null, // Callback in a call_user_func format, string || array 'callbackOptions' => array(), // Options for the callback ); /** * Constructor * * @param array|callable $options */ public function __construct($options = null) { if (is_callable($options)) { $options = array('callback' => $options); } parent::__construct($options); } /** * Returns the set callback * * @return mixed */ public function getCallback() { return $this->options['callback']; } /** * Sets the callback * * @param string|array|callable $callback * @return Callback Provides a fluent interface * @throws Exception\InvalidArgumentException */ public function setCallback($callback) { if (!is_callable($callback)) { throw new Exception\InvalidArgumentException('Invalid callback given'); } $this->options['callback'] = $callback; return $this; } /** * Returns the set options for the callback * * @return mixed */ public function getCallbackOptions() { return $this->options['callbackOptions']; } /** * Sets options for the callback * * @param mixed $options * @return Callback Provides a fluent interface */ public function setCallbackOptions($options) { $this->options['callbackOptions'] = (array) $options; return $this; } /** * Returns true if and only if the set callback returns * for the provided $value * * @param mixed $value * @param mixed $context Additional context to provide to the callback * @return bool * @throws Exception\InvalidArgumentException */ public function isValid($value, $context = null) { $this->setValue($value); $options = $this->getCallbackOptions(); $callback = $this->getCallback(); if (empty($callback)) { throw new Exception\InvalidArgumentException('No callback given'); } $args = array($value); if (empty($options) && !empty($context)) { $args[] = $context; } if (!empty($options) && empty($context)) { $args = array_merge($args, $options); } if (!empty($options) && !empty($context)) { $args[] = $context; $args = array_merge($args, $options); } try { if (!call_user_func_array($callback, $args)) { $this->error(self::INVALID_VALUE); return false; } } catch (\Exception $e) { $this->error(self::INVALID_CALLBACK); return false; } return true; } } |