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<?php |
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declare(strict_types=1); |
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namespace Maba\DatabaseInconsistencyFinder\Database; |
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use Doctrine\DBAL\FetchMode; |
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use Maba\DatabaseInconsistencyFinder\Entity\Interval; |
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use Maba\DatabaseInconsistencyFinder\Entity\ReferencedColumn; |
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use Maba\DatabaseInconsistencyFinder\Entity\TableReferences; |
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class QueryExecutor |
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{ |
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public function calculateHashForInterval( |
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ReferencedColumn $referencedColumn, |
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Interval $interval |
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): int { |
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return (int)$referencedColumn->getConnection()->fetchColumn( |
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strtr( |
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' |
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SELECT SUM(CRC32(:idColumn) * :countColumn) |
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FROM :table |
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WHERE :intervalQuery |
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', |
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[ |
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':table' => $referencedColumn->getTableName(), |
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':idColumn' => $referencedColumn->getIdColumnName(), |
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':countColumn' => $referencedColumn->getReferenceNumberColumnName(), |
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':intervalQuery' => $this->prepareIntervalQuery($interval, $referencedColumn->getIdColumnName()), |
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] |
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), |
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[ |
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':idLargerThan' => $interval->getFrom(), |
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':idUntil' => $interval->getUntil(), |
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] |
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); |
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} |
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public function calculateHashInRelatedTablesForInterval( |
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TableReferences $tableReferences, |
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Interval $interval |
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): int { |
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$connection = $tableReferences->getConnection(); |
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$total = 0; |
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foreach ($tableReferences->getColumnNames() as $columnName) { |
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$total += (int)$connection->fetchColumn( |
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strtr( |
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' |
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SELECT SUM(CRC32(:idColumn)) |
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FROM :table |
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WHERE :intervalQuery |
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', |
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[ |
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':table' => $tableReferences->getTableName(), |
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':idColumn' => $columnName, |
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':intervalQuery' => $this->prepareIntervalQuery($interval, $columnName), |
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] |
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), |
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[ |
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':idLargerThan' => $interval->getFrom(), |
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':idUntil' => $interval->getUntil(), |
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] |
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); |
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} |
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return $total; |
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} |
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public function findAllReferencedByInterval(ReferencedColumn $referencedColumn, Interval $interval): array |
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{ |
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$statement = $referencedColumn->getConnection()->executeQuery( |
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strtr( |
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' |
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SELECT :idColumn, :countColumn |
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FROM :table |
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WHERE :intervalQuery |
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', |
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[ |
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':table' => $referencedColumn->getTableName(), |
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':idColumn' => $referencedColumn->getIdColumnName(), |
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':countColumn' => $referencedColumn->getReferenceNumberColumnName(), |
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':intervalQuery' => $this->prepareIntervalQuery($interval, $referencedColumn->getIdColumnName()), |
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] |
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), |
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[ |
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':idLargerThan' => $interval->getFrom(), |
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':idUntil' => $interval->getUntil(), |
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] |
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); |
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$result = []; |
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View Code Duplication |
while (true) { |
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$row = $statement->fetch(FetchMode::NUMERIC); |
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if ($row === false) { |
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break; |
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} |
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$result[$row[0]] = (int)$row[1]; |
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} |
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return $result; |
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} |
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/** |
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* @param array|TableReferences[] $tableReferencesList |
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* @param Interval $interval |
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* @return array |
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*/ |
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public function aggregateReferencesByInterval(array $tableReferencesList, Interval $interval): array |
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{ |
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$result = []; |
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foreach ($tableReferencesList as $tableReferences) { |
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$connection = $tableReferences->getConnection(); |
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foreach ($tableReferences->getColumnNames() as $columnName) { |
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$statement = $connection->executeQuery( |
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strtr( |
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' |
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SELECT :idColumn |
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FROM :table |
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WHERE :intervalQuery |
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', |
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[ |
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':table' => $tableReferences->getTableName(), |
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':idColumn' => $columnName, |
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':intervalQuery' => $this->prepareIntervalQuery($interval, $columnName), |
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] |
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), |
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[ |
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':idLargerThan' => $interval->getFrom(), |
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':idUntil' => $interval->getUntil(), |
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] |
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); |
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View Code Duplication |
while (true) { |
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$id = $statement->fetch(FetchMode::COLUMN); |
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if ($id === false) { |
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break; |
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} |
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$result[$id] = ($result[$id] ?? 0) + 1; |
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} |
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} |
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} |
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return $result; |
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} |
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private function prepareIntervalQuery(Interval $interval, string $idColumn): string |
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{ |
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$parts = []; |
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if ($interval->getFrom() !== null) { |
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$parts[] = sprintf('%s > :idLargerThan', $idColumn); |
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} |
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if ($interval->getUntil() !== null) { |
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$parts[] = sprintf('%s <= :idUntil', $idColumn); |
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} |
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return count($parts) > 0 ? implode(' AND ', $parts) : 'TRUE'; |
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} |
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public function getIdRange(ReferencedColumn $referencedColumn): Interval |
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{ |
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$result = $referencedColumn->getConnection()->fetchArray( |
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strtr( |
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' |
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SELECT MIN(:idColumn), MAX(:idColumn) |
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FROM :table |
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', |
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[ |
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':table' => $referencedColumn->getTableName(), |
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':idColumn' => $referencedColumn->getIdColumnName(), |
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] |
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) |
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); |
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return (new Interval())->setFrom((int)$result[0])->setUntil((int)$result[1]); |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.