/**
* 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;
}
