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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\debug\panels;
use yii\debug\Panel;
use yii\helpers\ArrayHelper;
use yii\log\Logger;
use yii\helpers\Html;
/**
* Debugger panel that collects and displays database queries performed.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class DbPanel extends Panel
{
public function getName()
{
return 'Database';
}
public function getSummary()
{
$timings = $this->calculateTimings();
$queryCount = count($timings);
$queryTime = 0;
foreach ($timings as $timing) {
$queryTime += $timing[3];
}
$queryTime = number_format($queryTime * 1000) . ' ms';
$url = $this->getUrl();
$output = <<<EOD
<div class="yii-debug-toolbar-block">
<a href="$url" title="Executed $queryCount database queries which took $queryTime.">
DB <span class="label">$queryCount</span> <span class="label">$queryTime</span>
</a>
</div>
EOD;
return $queryCount > 0 ? $output : '';
}
public function getDetail()
{
$timings = $this->calculateTimings();
ArrayHelper::multisort($timings, 3, true);
$rows = array();
foreach ($timings as $timing) {
$duration = sprintf('%.1f ms', $timing[3] * 1000);
$procedure = Html::encode($timing[1]);
$traces = $timing[4];
if (!empty($traces)) {
$procedure .= Html::ul($traces, array(
'class' => 'trace',
'item' => function ($trace) {
return "<li>{$trace['file']}({$trace['line']})</li>";
},
));
}
$rows[] = "<tr><td style=\"width: 80px;\">$duration</td><td>$procedure</td>";
}
$rows = implode("\n", $rows);
return <<<EOD
<h1>Database Queries</h1>
<table class="table table-condensed table-bordered table-striped table-hover" style="table-layout: fixed;">
<thead>
<tr>
<th style="width: 80px;">Time</th>
<th>Query</th>
</tr>
</thead>
<tbody>
$rows
</tbody>
</table>
EOD;
}
private $_timings;
protected function calculateTimings()
{
if ($this->_timings !== null) {
return $this->_timings;
}
$messages = $this->data['messages'];
$timings = array();
$stack = array();
foreach ($messages as $i => $log) {
list($token, $level, $category, $timestamp) = $log;
$log[5] = $i;
if ($level == Logger::LEVEL_PROFILE_BEGIN) {
$stack[] = $log;
} elseif ($level == Logger::LEVEL_PROFILE_END) {
if (($last = array_pop($stack)) !== null && $last[0] === $token) {
$timings[$last[5]] = array(count($stack), $token, $last[3], $timestamp - $last[3], $last[4]);
}
}
}
$now = microtime(true);
while (($last = array_pop($stack)) !== null) {
$delta = $now - $last[3];
$timings[$last[5]] = array(count($stack), $last[0], $last[2], $delta, $last[4]);
}
ksort($timings);
return $this->_timings = $timings;
}
public function save()
{
$target = $this->module->logTarget;
$messages = $target->filterMessages($target->messages, Logger::LEVEL_PROFILE, array('yii\db\Command::queryInternal'));
return array(
'messages' => $messages,
);
}
}