MongoCursor::doQuery
(PECL mongo >=0.9.0 <1.6.0)
MongoCursor::doQuery — Execute the query
説明
protected MongoCursor::doQuery ( ) : void
警告 Please do not use me.
This function actually queries the database. All queries and commands go through this function. Thus, this function can be overridden to provide custom query handling.
This handles serializing your query, sending it to the database, receiving a response, and deserializing it. Thus, if you are planning to override this, your code should probably call out to the original to use the existing functionality (see the example below).
パラメータ
この関数にはパラメータはありません。
返り値
null.
変更履歴
| バージョン | 説明 |
|---|---|
| PECL mongo 1.2.11 | Emits E_DEPRECATED when used.
|
例
例1 MongoCursor::doQuery() example
You could override this function to attempt a query on a secondary and, if that fails, try it again on the primary.
<?phpclass MyCursor extends MongoCursor { protected function doQuery() { $this->slaveOkay(); try { MongoCursor::doQuery(); } catch(MongoCursorException $e) { $this->slaveOkay(false); MongoCursor::doQuery(); } }}?>
