CI框架中事务封装的很完善，使用起来很简单
1.不开启事务
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//不开启事务 前两个sql 能够执行成功,第三个执行失败$this->device_model->addForCamera(1, ‘爱三123‘, ‘2016122903‘, 0);$this->device_model->setStateInDevices(1, array(2));$this->device_model->addForCamera(1, ‘爱三1234567890‘, ‘2016122903‘, 0); |
2.自动事务
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//失败自动回滚$this->db->trans_start();//三条sql 都执行失败$this->device_model->addForCamera(1, ‘爱三123‘, ‘2016122903‘, 0);$this->device_model->setStateInDevices(1, array(2));$this->device_model->addForCamera(1, ‘爱三1234567890‘, ‘2016122903‘, 0);$this->db->trans_complete(); |
3.手动事务
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//若失败手动回滚 成功手动提交$this->db->trans_begin();//三条sql 都执行失败$this->device_model->addForCamera(1, ‘爱三123‘, ‘2016122903‘, 0);$this->device_model->setStateInDevices(1, array(2));$this->device_model->addForCamera(1, ‘爱三1234567890‘, ‘2016122903‘, 0);if ($this->db->trans_status() === false) { $this->db->trans_rollback();} else { $this->db->trans_commit();} |
原文：http://www.cnblogs.com/ghjbk/p/6745162.html