Yii 读写分离 分表分库

本文转自  http://hudeyong926.iteye.com/blog/1299989

实现一主一从，一主多从，多主多从的读写分离 。支持DAO，AR,其中Query builder只完成部分，需完善

调用

Java代码  

1. //AR
2. class User extends ActiveRecord
3. {
4. public $useDbName= ‘passport‘;
5. //$this->dbWrite();
6. }
7. //$connection = $model->getDbConnection();
8. //DAO
9. $connection = Yii::app()->db->setDbName(‘passport‘);
10. $count = $connection->createCommand(‘SELECT COUNT(*) FROM film‘)->queryScalar();
11. $sql = ‘SELECT film_id,title FROM film‘;
12. $dataProvider=new CSqlDataProvider($sql,array(
13. ‘db‘=> $connection,
14. ‘totalItemCount‘=>$count,
15. ));
16. Yii::app()->db->getLastInsertID();
17. //Query Builder
18. $user = Yii::app()->db->setDbName(‘passport‘)->createCommand()
19. ->select(‘id, username, profile‘)
20. ->from(‘tbl_user u‘)
21. ->join(‘tbl_profile p‘, ‘u.id=p.user_id‘)
22. ->where(‘id=:id‘, array(‘:id‘=>$id))
23. ->queryRow();

查看当前使用的主从库配置

Java代码  

1. Yii::app()->db->setDbName(‘passport‘);
2. //print_r(Yii::app()->getComponent(‘passport‘));

分表AR

Java代码  

1. public function primaryKey()
2. {
3. return ‘id‘;
4. }
5. private $tableName = "servicesmsremindrecord";
6. public function updateMeta($code)
7. {
8. $this->tableName = "service_sms_remind_record_".str_pad(($code%100), 2, ‘0‘, STR_PAD_LEFT);
9. $this->refreshMetaData();
10. return $this;
11. }
12. //TestUserDayHealth::model($code)->with(‘user‘)->findAll(); 循环放数组