/**
* checks if a table exists and if it does what is its engine then returns the engine
*
* @param string $tableName Table name
* @return string|null "InnoDB" or "MyISAM" or ,,,
*/
protected function checkTableEngine($tableName)
{
static $tableEngines = array();
//TODO: Cache needs to be cleared when tables are created or engines changed
if (!isset($tableEngines[$tableName])) {
try {
$tableStatus = $this->_db->getTableStatus($tableName);
} catch (\RuntimeException $e) {
$tableEngines[$tableName] = null;
return null;
}
if (isset($tableStatus[0]->Engine)) {
$tableEngines[$tableName] = $tableStatus[0]->Engine;
} else {
$tableEngines[$tableName] = null;
}
}
return $tableEngines[$tableName];
}
