/**
* Get taxonomy field
*
* @return AbstractField
* @throws WpException
*/
public function get_field()
{
if ($this->_field == null) {
if ($this->_field_init == null) {
$this->_field = new Text();
} elseif (is_string($this->_field_init)) {
$this->_field = FieldFactory::build($this->_field_init);
} elseif (Action::is_callable($this->_field_init)) {
$this->_field = Action::execute($this->_field_init);
if (!$this->_field instanceof AbstractField) {
throw new WpException("Option \"{$this->_title}\" init function must return a Field.");
}
} else {
throw new WpException("Invalid field type.");
}
$this->_field->set_name($this->_key);
$this->_field->set_label($this->_title);
}
return $this->_field;
}
/**
* @param AbstractField $field
*
* @return string
*/
protected function _render_field(AbstractField $field)
{
$css_classes = $field->get_classes();
if ($field instanceof Text && in_array('large-text', $css_classes)) {
$key = array_search('large-text', $css_classes);
$css_classes[$key] = 'regular-text';
$field->set_classes($css_classes);
}
return sprintf('<td>%s</td>', $field->render_field());
}
protected function _get_field_value(AbstractField $field, $post, $index)
{
if (!$post) {
return null;
}
$values = get_post_meta($post->ID, $field->get_name(), true);
if (!is_array($values)) {
if (empty($this->_defaults) || !isset($this->_defaults[$field->get_name()])) {
return null;
}
$values = $this->_defaults[$field->get_name()];
}
return array_key_exists($index, $values) ? $values[$index] : null;
}
protected function _render_for_attribute()
{
return ' for="' . $this->_field->get_id() . '"';
}
