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 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]". * * @return boolean True on success. * * @since 2.5 */ public function setup(SimpleXMLElement $element, $value, $group = null) { $result = parent::setup($element, $value, $group); $plugin = $this->element['plugin'] ? (string) $this->element['plugin'] : JFactory::getApplication()->getParams()->get('captcha', JFactory::getConfig()->get('captcha')); if ($plugin === 0 || $plugin === '0' || $plugin === '' || $plugin === null) { $this->hidden = true; } else { // Force field to be required. There's no reason to have a captcha if it is not required. // Obs: Don't put required="required" in the xml file, you just need to have validate="captcha" $this->required = true; $class = $this->element['class']; if (strpos($class, 'required') === false) { $this->element['class'] = $class . ' required'; } } return $result; } /** * Method to get the field input. * * @return string The field input. * * @since 2.5 */ protected function getInput() { $class = $this->element['class'] ? (string) $this->element['class'] : ''; $plugin = $this->element['plugin'] ? (string) $this->element['plugin'] : JFactory::getApplication()->getParams()->get('captcha', JFactory::getConfig()->get('captcha')); $namespace = $this->element['namespace'] ? (string) $this->element['namespace'] : $this->form->getName(); // Use 0 for none if ($plugin === 0 || $plugin === '0' || $plugin === '' || $plugin === null) { return ''; } else { if (($captcha = JCaptcha::getInstance($plugin, array('namespace' => $namespace))) == null) { return ''; } } return $captcha->display($this->name, $this->id, $class); } }