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<?php
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/*
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* This file is part of the symfony package.
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* sfValidatorChoice validates than the value is one of the expected values.
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*
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* @package symfony
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* @subpackage validator
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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* @version SVN: $Id: sfValidatorChoice.class.php 22264 2009-09-23 05:54:32Z fabien $
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*/
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class sfValidatorChoice extends sfValidatorBase
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{
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/**
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* Configures the current validator.
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*
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* Available options:
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*
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* * choices: An array of expected values (required)
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* * multiple: true if the select tag must allow multiple selections
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* * min: The minimum number of values that need to be selected (this option is only active if multiple is true)
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* * max: The maximum number of values that need to be selected (this option is only active if multiple is true)
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*
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* @param array $options An array of options
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* @param array $messages An array of error messages
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*
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* @see sfValidatorBase
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*/
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protected function configure($options = array(), $messages = array())
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{
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$this->addRequiredOption('choices');
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$this->addOption('multiple', false);
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$this->addOption('min');
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$this->addOption('max');
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$this->addMessage('min', 'At least %min% values must be selected (%count% values selected).');
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$this->addMessage('max', 'At most %max% values must be selected (%count% values selected).');
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}
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/**
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* @see sfValidatorBase
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*/
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protected function doClean($value)
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{
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$choices = $this->getChoices();
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if ($this->getOption('multiple'))
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{
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$value = $this->cleanMultiple($value, $choices);
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}
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else
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{
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if (!self::inChoices($value, $choices))
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{
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throw new sfValidatorError($this, 'invalid', array('value' => $value));
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}
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}
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return $value;
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}
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public function getChoices()
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{
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$choices = $this->getOption('choices');
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if ($choices instanceof sfCallable)
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{
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$choices = $choices->call();
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}
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return $choices;
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}
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/**
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* Cleans a value when multiple is true.
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*
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* @param mixed $value The submitted value
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*
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* @return array The cleaned value
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*/
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protected function cleanMultiple($value, $choices)
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{
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if (!is_array($value))
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{
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$value = array($value);
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}
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foreach ($value as $v)
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{
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if (!self::inChoices($v, $choices))
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{
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throw new sfValidatorError($this, 'invalid', array('value' => $v));
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}
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}
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$count = count($value);
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if ($this->hasOption('min') && $count < $this->getOption('min'))
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{
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throw new sfValidatorError($this, 'min', array('count' => $count, 'min' => $this->getOption('min')));
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}
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if ($this->hasOption('max') && $count > $this->getOption('max'))
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{
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throw new sfValidatorError($this, 'max', array('count' => $count, 'max' => $this->getOption('max')));
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}
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return $value;
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}
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/**
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* Checks if a value is part of given choices (see bug #4212)
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*
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* @param mixed $value The value to check
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* @param array $choices The array of available choices
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*
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* @return Boolean
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*/
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static protected function inChoices($value, array $choices = array())
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{
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foreach ($choices as $choice)
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{
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if ((string) $choice == (string) $value)
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{
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return true;
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}
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}
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return false;
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}
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}
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