/**
* Add a field to the form or fieldset
* Form and fieldset have same abstract
*
* @param \Magento\Framework\Data\Form|\Magento\Framework\Data\Form\Element\Fieldset $formOrFieldset
* @param string $elementName
* @param array $options
* @param string $type
* @return \Magento\Framework\Data\Form\Element\AbstractElement
*/
protected function _addField($formOrFieldset, $elementName, $options = array(), $type = 'text')
{
$options = array_merge($options, array('name' => $elementName, 'label' => $this->_recurringPaymentFields->getFieldLabel($elementName), 'note' => $this->_recurringPaymentFields->getFieldComment($elementName), 'disabled' => $this->_isReadOnly));
if (in_array($elementName, array('period_unit', 'period_frequency'))) {
$options['required'] = true;
}
return $formOrFieldset->addField($elementName, $type, $options);
}
