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<?php declare(strict_types=1); |
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/** |
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* Query |
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* |
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* SQL Query Builder / Database Abstraction Layer |
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* |
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* PHP version 7.1 |
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* |
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* @package Query |
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* @author Timothy J. Warren <[email protected]> |
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* @copyright 2012 - 2018 Timothy J. Warren |
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* @license http://www.opensource.org/licenses/mit-license.html MIT License |
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* @link https://git.timshomepage.net/aviat4ion/Query |
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*/ |
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namespace Query\Drivers\Pgsql; |
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use Query\Drivers\AbstractUtil; |
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/** |
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* Postgres-specific backup, import and creation methods |
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*/ |
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class Util extends AbstractUtil { |
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/** |
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* Create an SQL backup file for the current database's structure |
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* |
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* @return string |
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*/ |
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public function backupStructure(): string |
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{ |
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// @TODO Implement Backup function |
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return ''; |
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} |
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/** |
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* Create an SQL backup file for the current database's data |
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* |
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* @param array $exclude |
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* @return string |
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*/ |
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public function backupData(array $exclude=[]): string |
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{ |
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$tables = $this->getDriver()->getTables(); |
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// Filter out the tables you don't want |
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if( ! empty($exclude)) |
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{ |
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$tables = array_diff($tables, $exclude); |
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} |
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$outputSql = ''; |
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// Get the data for each object |
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foreach($tables as $t) |
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{ |
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$sql = 'SELECT * FROM "'.trim($t).'"'; |
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$res = $this->getDriver()->query($sql); |
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$objRes = $res->fetchAll(\PDO::FETCH_ASSOC); |
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// Don't add to the file if the table is empty |
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if (count($objRes) < 1) |
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{ |
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continue; |
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} |
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$res = NULL; |
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// Nab the column names by getting the keys of the first row |
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$columns = @array_keys($objRes[0]); |
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$insertRows = []; |
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// Create the insert statements |
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foreach($objRes as $row) |
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{ |
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$row = array_values($row); |
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// Quote values as needed by type |
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$row = array_map([$this->getDriver(), 'quote'], $row); |
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$row = array_map('trim', $row); |
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$rowString = 'INSERT INTO "'.trim($t).'" ("'.implode('","', $columns).'") VALUES ('.implode(',', $row).');'; |
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$row = NULL; |
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$insertRows[] = $rowString; |
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} |
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$objRes = NULL; |
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$outputSql .= "\n\n".implode("\n", $insertRows)."\n"; |
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} |
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return $outputSql; |
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} |
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} |
aviat4ion /
Query
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.