/**
*
* Gather values to update into the DB. Only values that have
* Changed will be updated
*
* @return array values that should be updated
*
*/
protected function _getUpdateData()
{
// get only table columns that have changed
$data = array();
$cols = array_keys($this->_model->table_cols);
foreach ($this->_data as $col => $val) {
if (in_array($col, $cols) && $this->isChanged($col)) {
$data[$col] = $val;
}
}
// serialize columns for update
$this->_model->serializeCols($data);
// done!
return $data;
}
