133 lines
4.0 KiB
PHP
133 lines
4.0 KiB
PHP
<?php
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namespace Doctrine\Bundle\DoctrineBundle\Controller;
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use Doctrine\Bundle\DoctrineBundle\Registry;
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use Doctrine\DBAL\Connection;
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use Doctrine\DBAL\Platforms\OraclePlatform;
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use Doctrine\DBAL\Platforms\SqlitePlatform;
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use Doctrine\DBAL\Platforms\SQLServerPlatform;
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use Exception;
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use Symfony\Bridge\Doctrine\DataCollector\DoctrineDataCollector;
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use Symfony\Component\HttpFoundation\Response;
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use Symfony\Component\HttpKernel\Profiler\Profiler;
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use Symfony\Component\VarDumper\Cloner\Data;
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use Throwable;
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use Twig\Environment;
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use function assert;
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/** @internal */
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class ProfilerController
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{
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private Environment $twig;
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private Registry $registry;
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private Profiler $profiler;
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public function __construct(Environment $twig, Registry $registry, Profiler $profiler)
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{
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$this->twig = $twig;
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$this->registry = $registry;
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$this->profiler = $profiler;
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}
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/**
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* Renders the profiler panel for the given token.
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*
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* @param string $token The profiler token
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* @param string $connectionName
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* @param int $query
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*
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* @return Response A Response instance
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*/
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public function explainAction($token, $connectionName, $query)
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{
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$this->profiler->disable();
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$profile = $this->profiler->loadProfile($token);
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$collector = $profile->getCollector('db');
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assert($collector instanceof DoctrineDataCollector);
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$queries = $collector->getQueries();
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if (! isset($queries[$connectionName][$query])) {
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return new Response('This query does not exist.');
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}
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$query = $queries[$connectionName][$query];
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if (! $query['explainable']) {
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return new Response('This query cannot be explained.');
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}
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$connection = $this->registry->getConnection($connectionName);
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assert($connection instanceof Connection);
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try {
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$platform = $connection->getDatabasePlatform();
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if ($platform instanceof SqlitePlatform) {
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$results = $this->explainSQLitePlatform($connection, $query);
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} elseif ($platform instanceof SQLServerPlatform) {
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throw new Exception('Explain for SQLServerPlatform is currently not supported. Contributions are welcome.');
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} elseif ($platform instanceof OraclePlatform) {
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$results = $this->explainOraclePlatform($connection, $query);
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} else {
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$results = $this->explainOtherPlatform($connection, $query);
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}
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} catch (Throwable $e) {
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return new Response('This query cannot be explained.');
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}
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return new Response($this->twig->render('@Doctrine/Collector/explain.html.twig', [
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'data' => $results,
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'query' => $query,
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]));
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}
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/**
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* @param mixed[] $query
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*
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* @return mixed[]
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*/
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private function explainSQLitePlatform(Connection $connection, array $query): array
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{
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$params = $query['params'];
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if ($params instanceof Data) {
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$params = $params->getValue(true);
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}
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return $connection->executeQuery('EXPLAIN QUERY PLAN ' . $query['sql'], $params, $query['types'])
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->fetchAllAssociative();
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}
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/**
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* @param mixed[] $query
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*
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* @return mixed[]
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*/
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private function explainOtherPlatform(Connection $connection, array $query): array
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{
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$params = $query['params'];
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if ($params instanceof Data) {
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$params = $params->getValue(true);
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}
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return $connection->executeQuery('EXPLAIN ' . $query['sql'], $params, $query['types'])
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->fetchAllAssociative();
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}
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/**
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* @param mixed[] $query
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*
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* @return mixed[]
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*/
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private function explainOraclePlatform(Connection $connection, array $query): array
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{
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$connection->executeQuery('EXPLAIN PLAN FOR ' . $query['sql']);
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return $connection->executeQuery('SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY())')
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->fetchAllAssociative();
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}
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}
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