我有这段代码来显示按用户分组的数据库查询:
$report_dates = $users->get_dates($startdate, $enddate);
foreach ($report_dates as $report_date_group) {
$report_group = $users->get_jobs($userid, $report_date_group['job_date']);
if ($report_group) {
foreach ($report_group as $report_group_row) {
$user_name = $report_group_row['user_name'] . " " . $report_group_row['user_last'];
$job_up_time = '';
$job_date = datef($report_group_row['job_date'], "m/d/Y");
$job_start = datef($report_group_row['job_start'], "g:i a");
$job_end = datef($report_group_row['job_end'], "g:i a");
$job_time = decimals($report_group_row['job_time']);
$job_up_time = ($job_time < 2) ? 2 : $job_time;
$job_rate = $report_group_row['user_rate'];
$job_total = $job_time * $job_rate;
$job_up_total = $job_up_time * $job_rate;
$user_total_fee += $job_total;
$user_date_fee += $job_total;
$user_total_up_fee += $job_up_total;
$user_date_up_fee += $job_up_total;
$user_total_time += $job_time;
$date_total_time += $job_time;
$date_total_up_time += $job_up_time;
$user_total_up_time += $job_up_time;
$rowdata .= "<tr>
<td>" . $report_group_row['job_num'] . "</td>
<td>" . $job_date . "</td>
<td>" . $job_start . "</td>
<td>" . $job_end . "</td>
<td>" . number_format($job_time, 2, '.', '') . "</td>
<td>" . cash($job_total) . "</td>
<td>" . ($job_time < 2 ? number_format($job_up_time, 2, '.', '') : number_format($job_up_time, 2, '.', '')) . "</td>
<td>" . ($job_time < 2 ? cash($job_up_total) : cash($job_up_total)) . "</td>
</tr>";
$records++;
}
$rowdata .= "<tr>
<td colspan=5>Date total</td>
<td>" . number_format($date_total_time, 2, '.', '') . "</td>
<td>" . cash($user_date_fee) . "</td>
<td>" . number_format($date_total_up_time, 2, '.', '') . "</td>
<td>" . cash($user_date_up_fee) . "</td>
</tr>";
}
}
?>
<h4>Job report for <?php echo $user_name; ?></h4>
<table>
<thead>
<tr>
<th>#</th>
<th>Job#</th>
<th>Job Date</th>
<th>Start</th>
<th>End</th>
<th>Time</th>
<th>Total</th>
<th>Up-time</th>
<th>Total Up</th>
</tr>
</thead>
<tbody>
<?php
echo $rowdata;
?>
</tbody>
<tfoot>
<tr>
<td colspan=5>Total for <?php echo $user_name; ?></td>
<td><?php echo number_format($user_total_time, 2, '.', ''); ?></td>
<td><?php echo cash($user_total_fee); ?></td>
<td><?php echo number_format($user_total_up_time, 2, '.', ''); ?></td>
<td><?php echo cash($user_total_up_fee); ?></td>
</tr>
</tfoot>
</table>
被调用的主要函数有:
public function get_dates($start, $end) {
$query = $this->db->prepare("SELECT DISTINCT job_date
FROM jobs
WHERE job_date BETWEEN ? AND ?
AND entry = 1
ORDER BY job_date ASC");
$query->bindValue(1, $start);
$query->bindValue(2, $end);
try {
$query->execute();
} catch (PDOException $e) { die($e->getMessage()); }
return $query->fetchAll();
}
public function get_jobs($user, $date) {
$query = $this->db->prepare("SELECT job_num,
job_date,
job_start,
job_end,
TIMEDIFF(job_end, job_start) AS job_time,
users.first_name AS user_name,
users.last_name AS user_last,
users.rate AS user_rate
FROM jobs
LEFT JOIN users
ON jobs.user_id = users.id
WHERE job_date = ?
AND user_id = ?
AND entry = 1
ORDER BY job_date ASC, job_start ASC");
$query->bindValue(1, $date);
$query->bindValue(2, $user);
try {
$query->execute();
} catch (PDOException $e) { die($e->getMessage()); }
return $query->fetchAll();
}
此代码当前按需要工作,并以我需要的方式正确显示数据。
我的问题:有没有更有效的编码方式,这样我就不必进行两个不同的查询来显示我需要的数据?
谢谢!