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<?php |
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/** |
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* This file contains a data collector for the profiler |
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* |
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* @license https://github.com/allejo/bzion/blob/master/LICENSE.md GNU General Public License Version 3 |
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*/ |
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namespace BZIon\Debug; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\HttpKernel\DataCollector\DataCollectorInterface; |
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/** |
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* A data collector that collects database data that will be shown on the |
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* profiler |
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*/ |
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class DatabaseDataCollector implements DataCollectorInterface |
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{ |
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public $data; |
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protected $queries = array(); |
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protected $cacheFetches = array(); |
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/** |
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* Collects data for the given Request and Response, so that it can be |
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* serialized and stored for later retrieval |
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* |
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* @param Request $request A Request instance |
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* @param Response $response A Response instance |
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* @param \Exception $exception An Exception instance |
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*/ |
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public function collect(Request $request, Response $response, \Exception $exception = null) |
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{ |
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$this->data = array( |
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'queries' => $this->queries, |
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'cachedModels' => \Service::getModelCache()->all(), |
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'cacheFetches' => $this->cacheFetches |
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); |
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} |
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/** |
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* Log a database query |
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* |
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* @param DatabaseQuery $query The query |
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*/ |
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public function logQuery($query) |
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{ |
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$this->queries[] = $query; |
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} |
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/** |
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* Log a fetch from the Model Cache |
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* |
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* @param string $type The type of the model |
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* @param int $id The ID of the model |
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*/ |
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public function logCacheFetch($type, $id) |
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{ |
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if (isset($this->cacheFetches[$type])) { |
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++$this->cacheFetches[$type]; |
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} else { |
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$this->cacheFetches[$type] = 1; |
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} |
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} |
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/** |
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* Get the sorted catche fetches by Model type |
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* |
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* @return array |
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*/ |
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public function getCacheFetches() |
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{ |
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arsort($this->data['cacheFetches']); |
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return $this->data['cacheFetches']; |
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} |
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/** |
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* Get the total number of catche fetches |
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* |
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* @return int |
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*/ |
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public function getTotalCacheFetches() |
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{ |
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return array_sum($this->data['cacheFetches']); |
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} |
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/** |
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* Get an estimate of the time that the model cache saved in milliseconds |
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* |
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* @return number |
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*/ |
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public function estimateTimeSaved() |
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{ |
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$sum = 0; |
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$count = 0; |
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foreach ($this->data['queries'] as $query) { |
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if (0 === strpos(trim($query->getQuery()), 'SELECT *')) { |
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$sum += $query->getDuration(); |
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++$count; |
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} |
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} |
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if ($count == 0) { |
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return 0; |
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} else { |
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return array_sum($this->data['cacheFetches']) * $sum / $count / 1000; |
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} |
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} |
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/** |
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* Get the number of times each query was sent to the server |
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* |
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* @return array An array with resolved queries as keys and frequencies as values |
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*/ |
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public function getQueryFrequencies() |
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{ |
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$return = array(); |
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foreach ($this->data['queries'] as $query) { |
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$resolved = $query->getResolvedQuery(); |
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if (!isset($return[$resolved])) { |
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$return[$resolved] = 1; |
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} else { |
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++$return[$resolved]; |
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} |
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} |
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return $return; |
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} |
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/** |
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* Get the number of duplicated queries |
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* |
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* @return int |
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*/ |
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public function getDuplicatedQueryCount() |
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{ |
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$frequencies = $this->getQueryFrequencies(); |
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return array_sum($frequencies) - count($frequencies); |
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} |
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/** |
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* Get the queries made to the database |
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* |
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* @return DatabaseQuery[] |
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*/ |
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public function getQueries() |
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{ |
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return $this->data['queries']; |
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} |
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/** |
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* Get the total duration of the database queries in milliseconds |
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* |
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* @return float |
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*/ |
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public function getDuration() |
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{ |
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$sum = 0; |
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foreach ($this->data['queries'] as $query) { |
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$sum += $query->getDuration(); |
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} |
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return $sum / 1000; |
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} |
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/** |
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* Returns the name of the collector. |
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* |
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* @return string The collector name |
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*/ |
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public function getName() |
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{ |
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return 'database'; |
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} |
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} |
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allejo /
bzion
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.