Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
85.00% |
34 / 40 |
|
75.00% |
3 / 4 |
CRAP | |
0.00% |
0 / 1 |
| DatabaseHelper | |
85.00% |
34 / 40 |
|
75.00% |
3 / 4 |
15.76 | |
0.00% |
0 / 1 |
| __construct | |
100.00% |
1 / 1 |
|
100.00% |
1 / 1 |
1 | |||
| alignTablePrefix | |
100.00% |
2 / 2 |
|
100.00% |
1 / 1 |
1 | |||
| alignTablePrefixByPattern | |
100.00% |
8 / 8 |
|
100.00% |
1 / 1 |
2 | |||
| buildInsertQueries | |
79.31% |
23 / 29 |
|
0.00% |
0 / 1 |
12.07 | |||
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Helper class for database drivers. |
| 5 | * |
| 6 | * This Source Code Form is subject to the terms of the Mozilla Public License, |
| 7 | * v. 2.0. If a copy of the MPL was not distributed with this file, You can |
| 8 | * obtain one at https://mozilla.org/MPL/2.0/. |
| 9 | * |
| 10 | * @package phpMyFAQ |
| 11 | * @author Thorsten Rinne <thorsten@phpmyfaq.de> |
| 12 | * @author Matteo Scaramuccia <matteo@phpmyfaq.de> |
| 13 | * @copyright 2012-2026 phpMyFAQ Team |
| 14 | * @license https://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0 |
| 15 | * @link https://www.phpmyfaq.de |
| 16 | * @since 2012-04-12 |
| 17 | */ |
| 18 | |
| 19 | declare(strict_types=1); |
| 20 | |
| 21 | namespace phpMyFAQ\Database; |
| 22 | |
| 23 | use phpMyFAQ\Configuration; |
| 24 | use phpMyFAQ\Strings; |
| 25 | |
| 26 | /** |
| 27 | * Class Helper |
| 28 | * |
| 29 | * @package phpMyFAQ\Database |
| 30 | */ |
| 31 | readonly class DatabaseHelper |
| 32 | { |
| 33 | /** |
| 34 | * Constructor. |
| 35 | */ |
| 36 | public function __construct( |
| 37 | private Configuration $configuration, |
| 38 | ) { |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * Align the prefix of the table name used in the PMF backup file, |
| 43 | * from the (old) value of the system upon which the backup was performed |
| 44 | * to the (new) prefix of the system upon which the backup will be restored |
| 45 | * This alignment will be performed upon all the SQL query "patterns" |
| 46 | * provided within the PMF backup file. |
| 47 | */ |
| 48 | public static function alignTablePrefix(string $query, string $oldValue, string $newValue): string |
| 49 | { |
| 50 | // Align DELETE FROM <prefix.tablename> |
| 51 | $query = self::alignTablePrefixByPattern($query, 'DELETE FROM', $oldValue, $newValue); |
| 52 | // Align INSERT INTO <prefix.tablename> |
| 53 | return self::alignTablePrefixByPattern($query, 'INSERT INTO', $oldValue, $newValue); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Align the prefix of the table name used in the PMF backup file, |
| 58 | * from the (old) value of the system upon which the backup was performed |
| 59 | * to the (new) prefix of the system upon which the backup will be restored. |
| 60 | * This alignment will be performed ONLY upon those given SQL queries starting |
| 61 | * with the given pattern. |
| 62 | */ |
| 63 | private static function alignTablePrefixByPattern( |
| 64 | string $query, |
| 65 | string $startPattern, |
| 66 | string $oldValue, |
| 67 | string $newValue, |
| 68 | ): string { |
| 69 | $return = $query; |
| 70 | $matches = []; |
| 71 | |
| 72 | Strings::preg_match_all('/^' . $startPattern . "\s+(\w+)(\s+|$)/i", $query, $matches); |
| 73 | |
| 74 | if (($matches[1][0] ?? null) !== null) { |
| 75 | $oldTableFullName = (string) $matches[1][0]; |
| 76 | $newTableFullName = $newValue . Strings::substr($oldTableFullName, Strings::strlen($oldValue)); |
| 77 | $return = str_replace($oldTableFullName, $newTableFullName, $query); |
| 78 | } |
| 79 | |
| 80 | return $return; |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * This function builds the queries for the backup. |
| 85 | * |
| 86 | * @return string[] |
| 87 | */ |
| 88 | public function buildInsertQueries(string $query, string $table): array |
| 89 | { |
| 90 | $result = $this->configuration->getDb()->query($query); |
| 91 | if (!$result) { |
| 92 | return []; |
| 93 | } |
| 94 | |
| 95 | $queries = []; |
| 96 | |
| 97 | $queries[] = "\r\n-- Table: " . $table; |
| 98 | |
| 99 | while (true) { |
| 100 | $row = $this->configuration->getDb()->fetchArray($result); |
| 101 | if ($row === false || $row === null || $row === []) { |
| 102 | break; |
| 103 | } |
| 104 | |
| 105 | $columns = []; |
| 106 | $values = []; |
| 107 | foreach ($row as $key => $val) { |
| 108 | if (is_int($key)) { |
| 109 | continue; // Fix for SQLite3 |
| 110 | } |
| 111 | |
| 112 | $columns[] = $key; |
| 113 | if ('rights' !== $key && is_numeric($val)) { |
| 114 | $values[] = $val; |
| 115 | continue; |
| 116 | } |
| 117 | |
| 118 | if (is_null($val)) { |
| 119 | $values[] = 'NULL'; |
| 120 | continue; |
| 121 | } |
| 122 | |
| 123 | $values[] = sprintf("'%s'", $this->configuration->getDb()->escape((string) $val)); |
| 124 | } |
| 125 | |
| 126 | $queries[] = sprintf( |
| 127 | 'INSERT INTO %s (%s) VALUES (%s);', |
| 128 | $table, |
| 129 | implode(',', $columns), |
| 130 | implode(',', $values), |
| 131 | ); |
| 132 | } |
| 133 | |
| 134 | return $queries; |
| 135 | } |
| 136 | } |