/**
* Renders the opening tag of the field container.
* @return string the rendering result.
*/
public function begin()
{
if ($this->form->enableClientScript) {
$clientOptions = $this->getClientOptions();
if (!empty($clientOptions)) {
$this->form->attributes[] = $clientOptions;
}
}
$inputID = Html::getInputId($this->model, $this->attribute);
$attribute = Html::getAttributeName($this->attribute);
$options = $this->options;
$class = isset($options['class']) ? [$options['class']] : [];
$class[] = "field-{$inputID}";
if ($this->model->isAttributeRequired($attribute)) {
$class[] = $this->form->requiredCssClass;
}
if ($this->model->hasErrors($attribute)) {
$class[] = $this->form->errorCssClass;
}
$options['class'] = implode(' ', $class);
$tag = ArrayHelper::remove($options, 'tag', 'div');
return Html::beginTag($tag, $options);
}
/**
* @inheritdoc
*/
public function init()
{
if (!isset($this->options['id'])) {
$this->options['id'] = $this->getId();
}
if ($this->requiresPjax()) {
ob_start();
ob_implicit_flush(false);
$view = $this->getView();
$view->clear();
$view->beginPage();
$view->head();
$view->beginBody();
if ($view->title !== null) {
echo Html::tag('title', Html::encode($view->title));
}
} else {
echo Html::beginTag('div', $this->options);
}
}