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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,59 @@ | ||
| <?php | ||
| /** | ||
| * Joomla! Content Management System | ||
| * | ||
| * @copyright Copyright (C) 2005 - 2020 Open Source Matters, Inc. All rights reserved. | ||
| * @license GNU General Public License version 2 or later; see LICENSE.txt | ||
| */ | ||
|
|
||
| namespace Joomla\CMS\Form\Rule; | ||
|
|
||
| defined('JPATH_PLATFORM') or die; | ||
|
|
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| use Joomla\CMS\Form\Form; | ||
| use Joomla\CMS\Form\FormRule; | ||
| use Joomla\Registry\Registry; | ||
|
|
||
| /** | ||
| * Form Rule class for the Joomla Platform. | ||
| * | ||
| * @since __DEPLOY_VERSION__ | ||
| */ | ||
| class AlphanumericRule extends FormRule | ||
| { | ||
| /** | ||
| * Method to test for alphanumeric characters only. | ||
| * | ||
| * @param \SimpleXMLElement $element The SimpleXMLElement object representing the `<field>` tag for the form field object. | ||
| * @param mixed $value The form field value to validate. | ||
| * @param string $group The field name group control value. This acts as an array container for the field. | ||
| * For example if the field has name="foo" and the group value is set to "bar" then the | ||
| * full field name would end up being "bar[foo]". | ||
| * @param Registry $input An optional Registry object with the entire data set to validate against the entire form. | ||
| * @param Form $form The form object for which the field is being tested. | ||
| * | ||
| * @return boolean True if the value is valid, false otherwise. | ||
| * | ||
| * @since __DEPLOY_VERSION__ | ||
| */ | ||
| public function test(\SimpleXMLElement $element, $value, $group = null, Registry $input = null, Form $form = null) | ||
| { | ||
| $value = trim($value); | ||
|
|
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| // If the field is empty and not required, the field is valid. | ||
| $required = ((string) $element['required'] == 'true' || (string) $element['required'] == 'required'); | ||
|
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| if (!$required && empty($value)) | ||
| { | ||
| return true; | ||
| } | ||
|
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| // The value must be alphanumeric characters only | ||
| if (!ctype_alnum($value)) | ||
| { | ||
| return false; | ||
| } | ||
|
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| return true; | ||
| } | ||
| } |