* @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 = << DB $queryCount $queryTime EOD; return $queryCount > 0 ? $output : ''; } public function getDetail() { $timings = $this->calculateTimings(); ArrayHelper::multisort($timings, 3, SORT_DESC); $rows = []; foreach ($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, [ 'class' => 'trace', 'item' => function ($trace) { return "

{$trace['file']}({$trace['line']})

"; }, ]); } $rows[] = "$duration$procedure"; } $rows = implode("\n", $rows); return <<Database Queries $rows

Time	Query

EOD; } private $_timings; protected function calculateTimings() { if ($this->_timings !== null) { return $this->_timings; } $messages = $this->data['messages']; $timings = []; $stack = []; foreach ($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]] = [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]] = [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, ['yii\db\Command::query', 'yii\db\Command::execute']); return ['messages' => $messages]; } }