69 lines
2.3 KiB
PHP
69 lines
2.3 KiB
PHP
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<?php
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/**
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* @package Joomla.Platform
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* @subpackage Form
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* Form Rule class for the Joomla Platform.
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*
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* @package Joomla.Platform
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* @subpackage Form
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* @since 11.1
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*/
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class JFormRuleEquals extends JFormRule
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{
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/**
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* Method to test if two values are equal. To use this rule, the form
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* XML needs a validate attribute of equals and a field attribute
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* that is equal to the field to test against.
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*
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* @param SimpleXMLElement $element The SimpleXMLElement object representing the <field /> tag for the form field object.
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* @param mixed $value The form field value to validate.
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* @param string $group The field name group control value. This acts as as an array container for the field.
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* For example if the field has name="foo" and the group value is set to "bar" then the
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* full field name would end up being "bar[foo]".
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* @param JRegistry $input An optional JRegistry object with the entire data set to validate against the entire form.
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* @param JForm $form The form object for which the field is being tested.
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*
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* @return boolean True if the value is valid, false otherwise.
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*
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* @since 11.1
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* @throws InvalidArgumentException
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* @throws UnexpectedValueException
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*/
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public function test(SimpleXMLElement $element, $value, $group = null, JRegistry $input = null, JForm $form = null)
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{
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$field = (string) $element['field'];
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// Check that a validation field is set.
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if (!$field)
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{
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throw new UnexpectedValueException(sprintf('$field empty in %s::test', get_class($this)));
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}
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if (is_null($form))
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{
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throw new InvalidArgumentException(sprintf('The value for $form must not be null in %s', get_class($this)));
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}
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if (is_null($input))
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{
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throw new InvalidArgumentException(sprintf('The value for $input must not be null in %s', get_class($this)));
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}
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// Test the two values against each other.
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if ($value == $input->get($field))
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{
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return true;
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}
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return false;
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}
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}
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