/**
* {@inheritdoc}
*/
protected function _prepareInsertData($entity)
{
$data = parent::_prepareInsertData($entity);
// Populate the discriminator column
$discColumn = $this->_class->discriminatorColumn;
$this->_columnTypes[$discColumn['name']] = $discColumn['type'];
$data[$this->_getDiscriminatorColumnTableName()][$discColumn['name']] = $this->_class->discriminatorValue;
return $data;
}
