/**
* 通过键名，删除一条记录
* @param string $optKey
* @return integer
*/
public function removeByKey($optKey)
{
if (($optKey = trim($optKey)) === '') {
return false;
}
$tableName = $this->getTblprefix() . TableNames::getOptions();
$sql = $this->getCommandBuilder()->createDelete($tableName, '`option_key` = ?');
$rowCount = $this->delete($sql, $optKey);
return $rowCount;
}
