我有這個查詢,我想讓它在codeigniter查詢表單中工作,所以想知道它的可能與否。codeigniter,使用情況何時用於查詢
這是我想用codeigniter自己的方式在Codeigniter中實現的查詢。
use zorkif_next;
SELECT
`osp_job_status_track`.`StatusID`,
`osp_job_status_track`.`SubStatusID`,
`osp_job_sub_status`.`CurrentStatus`
FROM
(`osp_job_details`)
LEFT JOIN
`osp_job_status_track` ON `osp_job_status_track`.`JobID` = `osp_job_details`.`JobID`
LEFT JOIN
`osp_job_status` ON `osp_job_status`.`StatusID` = `osp_job_status_track`.`StatusID`
LEFT JOIN
`osp_job_sub_status` ON `osp_job_sub_status`.`SubStatusID` = `osp_job_status_track`.`SubStatusID`
LEFT JOIN
`hr_employee_details` ON `hr_employee_details`.`EmployeeID` = `osp_job_details`.`AssignToEmployeeID`
LEFT JOIN
`osp_job_type` ON `osp_job_type`.`JobTypeID` = `osp_job_details`.`JobtypeID`
WHERE
-- `isDefault` = 1
-- AND
CASE WHEN `osp_job_status`.`StatusID` = 2
THEN `osp_job_sub_status`.`CurrentStatus` = 3
ELSE `osp_job_status`.`StatusID` >= 2
END ;
那麼如何實現
$this->db->where($where);
這個查詢???
沒有辦法在'CI'中實現'CASE'。 CI SQL庫很弱 – diEcho
我不確定它在CI中是否可行。你可以去看看所有可用的主動rec ..檢查這個文件 - system \ database \ DB_active_rec.php –
閱讀:http://stackoverflow.com/questions/11821503/does-codeigniter-datamapper-orm-support- a-mysql-case-statement-in-order-by-claus – diEcho