/**
* Tells whether object can be converted to new engine type
*
* @param string $newEngineType
* @throws Exception
* @return mixed - true for success or array with restricted indexes and
* fields
*/
public function checkEngineCompatibility($newEngineType)
{
$restrictedIndexes = array();
$restrictedFields = array();
$indexes = $this->_objectConfig->getIndexesConfig();
$fields = $this->_objectConfig->getFieldsConfig();
switch (strtolower($newEngineType)) {
case 'myisam':
break;
case 'memory':
foreach ($fields as $k => $v) {
$type = $v['db_type'];
if (in_array($type, self::$textTypes, true) || in_array($type, self::$blobTypes, true)) {
$restrictedFields[] = $k;
}
}
foreach ($indexes as $k => $v) {
if (isset($v['fulltext']) && $v['fulltext']) {
$restrictedIndexes[] = $k;
}
}
break;
case 'innodb':
foreach ($indexes as $k => $v) {
if (isset($v['fulltext']) && $v['fulltext']) {
$restrictedIndexes[] = $k;
}
}
break;
default:
throw new Exception('Unknown db engine type');
break;
}
if (!empty($restrictedFields) || !empty($restrictedIndexes)) {
return array('indexes' => $restrictedIndexes, 'fields' => $restrictedFields);
} else {
return true;
}
}
