笨更好的剧本流我以下数据:用于查询
promo_id date time reg_cnt notes
2760 2010-06-02 01:30:00 2 -
2760 2010-06-02 05:30:00 2 -
2760 2010-06-03 07:00:00 1 -
2760 2010-06-03 07:30:00 2 -
2760 2010-06-03 08:30:00 3 -
2760 2010-06-04 09:00:00 1280 promo from vendor xxx
2760 2010-06-04 09:30:00 6 -
2760 2010-06-04 10:00:00 3 -
2760 2010-06-04 10:30:00 5434 TVC program xxx
我需要它来显示这样的:
PROMO DATE REG CNT NOTES
2760 2010-06-02 4 -
2760 2010-06-03 6 -
2760 2010-06-04 6723 promo from vendor xxx, TVC program xxx
我可以简单的方式想不通到获取这些数据。 现在,我做了我的模型是这样的:
$data = array();
$query = $this->db->query("SELECT promo_id, date, SUM(reg_cnt) AS reg_cnt FROM promo_signup");
foreach($query->result_array() as $q){
$data[ $q['promo_id'] . '-' . $q['date'] ] = $q;
$query2 = $this->db->query("SELECT notes FROM promo_signup WHERE date = '" . $q['date'] . "' AND promo_id = '" . $q['promo_id'] . "'");
$data2 = array();
foreach($query2->result_array() as $q2){
$data2[] = $q2['notes'];
}
$data[ $q['promo_id'] . '-' . $q['date'] ]['notes'] = $data2;
}
然后,我仍然可以通过$data
必须循环对我的看法,以显示它。
我想这是处理能力的浪费相比,下面的代码(如果我没费CI):
$data = array();
$query = $this->db->query("SELECT promo_id, date, SUM(reg_cnt) AS reg_cnt FROM promo_signup");
foreach($query->result_array() as $q){
$data[ $q['promo_id'] . '-' . $q['date'] ] = $q;
$query2 = $this->db->query("SELECT notes FROM promo_signup WHERE date = '" . $q['date'] . "' AND promo_id = '" . $q['promo_id'] . "'");
$data2 = array();
//echo data here
foreach($query2->result_array() as $q2){
$data2[] = $q2['notes'];
//echo notes data here
}
}
那么,有没有更好的方法CI干什么呢?
对不起,如果你们在上面的代码中发现了一些错误,因为它只是概念代码。
啊,谢谢! GROUP_CONCAT是我所需要的。至于MVC,它是MVC。以上所有查询都在我的模型上。对不起,如果我的问题不够清楚。 – ariefbayu 2010-08-06 02:15:43