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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Tracks applied migrations in the database. |
| 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 | * @copyright 2023-2026 phpMyFAQ Team |
| 13 | * @license https://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0 |
| 14 | * @link https://www.phpmyfaq.de |
| 15 | * @since 2026-01-25 |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace phpMyFAQ\Setup\Migration; |
| 21 | |
| 22 | use phpMyFAQ\Configuration; |
| 23 | use phpMyFAQ\Database; |
| 24 | |
| 25 | class MigrationTracker |
| 26 | { |
| 27 | private const TABLE_NAME = 'faqmigrations'; |
| 28 | |
| 29 | public function __construct( |
| 30 | private readonly Configuration $configuration, |
| 31 | ) { |
| 32 | } |
| 33 | |
| 34 | /** |
| 35 | * Creates the migrations tracking table if it doesn't exist. |
| 36 | */ |
| 37 | public function ensureTableExists(): void |
| 38 | { |
| 39 | $tableName = Database::getTablePrefix() . self::TABLE_NAME; |
| 40 | $dbType = Database::getType(); |
| 41 | |
| 42 | $createTableSql = match ($dbType) { |
| 43 | 'mysqli', 'pdo_mysql' => "CREATE TABLE IF NOT EXISTS {$tableName} ( |
| 44 | id INT NOT NULL AUTO_INCREMENT, |
| 45 | version VARCHAR(50) NOT NULL, |
| 46 | applied_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, |
| 47 | execution_time_ms INT DEFAULT NULL, |
| 48 | checksum VARCHAR(64) DEFAULT NULL, |
| 49 | description TEXT DEFAULT NULL, |
| 50 | PRIMARY KEY (id), |
| 51 | UNIQUE KEY idx_version (version) |
| 52 | ) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE = InnoDB", |
| 53 | 'pgsql', 'pdo_pgsql' => "CREATE TABLE IF NOT EXISTS {$tableName} ( |
| 54 | id SERIAL NOT NULL, |
| 55 | version VARCHAR(50) NOT NULL, |
| 56 | applied_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, |
| 57 | execution_time_ms INTEGER DEFAULT NULL, |
| 58 | checksum VARCHAR(64) DEFAULT NULL, |
| 59 | description TEXT DEFAULT NULL, |
| 60 | PRIMARY KEY (id), |
| 61 | UNIQUE (version) |
| 62 | )", |
| 63 | 'sqlite3', 'pdo_sqlite' => "CREATE TABLE IF NOT EXISTS {$tableName} ( |
| 64 | id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, |
| 65 | version VARCHAR(50) NOT NULL UNIQUE, |
| 66 | applied_at DATETIME DEFAULT CURRENT_TIMESTAMP, |
| 67 | execution_time_ms INTEGER DEFAULT NULL, |
| 68 | checksum VARCHAR(64) DEFAULT NULL, |
| 69 | description TEXT DEFAULT NULL |
| 70 | )", |
| 71 | 'sqlsrv', 'pdo_sqlsrv' => "IF NOT EXISTS (SELECT * FROM sysobjects WHERE name='{$tableName}' AND xtype='U') |
| 72 | CREATE TABLE {$tableName} ( |
| 73 | id INT IDENTITY(1,1) NOT NULL, |
| 74 | version VARCHAR(50) NOT NULL UNIQUE, |
| 75 | applied_at DATETIME NOT NULL DEFAULT GETDATE(), |
| 76 | execution_time_ms INT DEFAULT NULL, |
| 77 | checksum VARCHAR(64) DEFAULT NULL, |
| 78 | description NVARCHAR(MAX) DEFAULT NULL, |
| 79 | PRIMARY KEY (id) |
| 80 | )", |
| 81 | default => throw new \RuntimeException("Unsupported database type: {$dbType}"), |
| 82 | }; |
| 83 | |
| 84 | $this->configuration->getDb()->query($createTableSql); |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Checks if a migration has been applied. |
| 89 | */ |
| 90 | public function isApplied(string $version): bool |
| 91 | { |
| 92 | $tableName = Database::getTablePrefix() . self::TABLE_NAME; |
| 93 | $query = sprintf( |
| 94 | "SELECT COUNT(*) as cnt FROM %s WHERE version = '%s'", |
| 95 | $tableName, |
| 96 | $this->configuration->getDb()->escape($version), |
| 97 | ); |
| 98 | |
| 99 | $result = $this->configuration->getDb()->query($query); |
| 100 | $row = $this->configuration->getDb()->fetchObject($result); |
| 101 | |
| 102 | return $row instanceof \stdClass && (int) $row->cnt > 0; |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Records a migration as applied. |
| 107 | */ |
| 108 | public function recordMigration( |
| 109 | string $version, |
| 110 | int $executionTimeMs = 0, |
| 111 | ?string $checksum = null, |
| 112 | ?string $description = null, |
| 113 | ): void { |
| 114 | $tableName = Database::getTablePrefix() . self::TABLE_NAME; |
| 115 | $db = $this->configuration->getDb(); |
| 116 | |
| 117 | $query = sprintf( |
| 118 | "INSERT INTO %s (version, execution_time_ms, checksum, description) VALUES ('%s', %d, %s, %s)", |
| 119 | $tableName, |
| 120 | $db->escape($version), |
| 121 | $executionTimeMs, |
| 122 | $checksum !== null ? "'" . $db->escape($checksum) . "'" : 'NULL', |
| 123 | $description !== null ? "'" . $db->escape($description) . "'" : 'NULL', |
| 124 | ); |
| 125 | |
| 126 | $db->query($query); |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * Removes a migration record (for rollback). |
| 131 | */ |
| 132 | public function removeMigration(string $version): void |
| 133 | { |
| 134 | $tableName = Database::getTablePrefix() . self::TABLE_NAME; |
| 135 | $query = sprintf( |
| 136 | "DELETE FROM %s WHERE version = '%s'", |
| 137 | $tableName, |
| 138 | $this->configuration->getDb()->escape($version), |
| 139 | ); |
| 140 | |
| 141 | $this->configuration->getDb()->query($query); |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Returns all applied migrations. |
| 146 | * |
| 147 | * @return array<int, array{version: string, applied_at: string, execution_time_ms: int, checksum: string|null, description: string|null}> |
| 148 | */ |
| 149 | public function getAppliedMigrations(): array |
| 150 | { |
| 151 | $tableName = Database::getTablePrefix() . self::TABLE_NAME; |
| 152 | $query = sprintf( |
| 153 | 'SELECT version, applied_at, execution_time_ms, checksum, description FROM %s ORDER BY id ASC', |
| 154 | $tableName, |
| 155 | ); |
| 156 | |
| 157 | $result = $this->configuration->getDb()->query($query); |
| 158 | $migrations = []; |
| 159 | |
| 160 | while (true) { |
| 161 | $row = $this->configuration->getDb()->fetchObject($result); |
| 162 | if ($row === false || $row === null || $row === []) { |
| 163 | break; |
| 164 | } |
| 165 | |
| 166 | $migrations[] = [ |
| 167 | 'version' => (string) $row->version, |
| 168 | 'applied_at' => (string) $row->applied_at, |
| 169 | 'execution_time_ms' => (int) $row->execution_time_ms, |
| 170 | 'checksum' => $row->checksum === null ? null : (string) $row->checksum, |
| 171 | 'description' => $row->description === null ? null : (string) $row->description, |
| 172 | ]; |
| 173 | } |
| 174 | |
| 175 | return $migrations; |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Returns the list of applied versions. |
| 180 | * |
| 181 | * @return string[] |
| 182 | */ |
| 183 | public function getAppliedVersions(): array |
| 184 | { |
| 185 | return array_column($this->getAppliedMigrations(), 'version'); |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Returns the last applied migration version. |
| 190 | */ |
| 191 | public function getLastAppliedVersion(): ?string |
| 192 | { |
| 193 | $tableName = Database::getTablePrefix() . self::TABLE_NAME; |
| 194 | $dbType = Database::getType(); |
| 195 | |
| 196 | // Build database-specific query |
| 197 | $query = match ($dbType) { |
| 198 | 'sqlsrv', 'pdo_sqlsrv' => sprintf('SELECT TOP 1 version FROM %s ORDER BY id DESC', $tableName), |
| 199 | default => sprintf('SELECT version FROM %s ORDER BY id DESC LIMIT 1', $tableName), |
| 200 | }; |
| 201 | |
| 202 | $result = $this->configuration->getDb()->query($query); |
| 203 | $row = $this->configuration->getDb()->fetchObject($result); |
| 204 | |
| 205 | return $row instanceof \stdClass ? (string) $row->version : null; |
| 206 | } |
| 207 | |
| 208 | /** |
| 209 | * Checks if the tracking table exists. |
| 210 | */ |
| 211 | public function tableExists(): bool |
| 212 | { |
| 213 | $tableName = Database::getTablePrefix() . self::TABLE_NAME; |
| 214 | $dbType = Database::getType(); |
| 215 | |
| 216 | $query = match ($dbType) { |
| 217 | 'mysqli', 'pdo_mysql' => "SHOW TABLES LIKE '{$tableName}'", |
| 218 | 'pgsql', 'pdo_pgsql' => "SELECT tablename FROM pg_catalog.pg_tables WHERE tablename = '{$tableName}'", |
| 219 | 'sqlite3', 'pdo_sqlite' => "SELECT name FROM sqlite_master WHERE type='table' AND name='{$tableName}'", |
| 220 | 'sqlsrv', 'pdo_sqlsrv' => "SELECT * FROM sysobjects WHERE name='{$tableName}' AND xtype='U'", |
| 221 | default => throw new \RuntimeException("Unsupported database type: {$dbType}"), |
| 222 | }; |
| 223 | |
| 224 | $result = $this->configuration->getDb()->query($query); |
| 225 | return $this->configuration->getDb()->numRows($result) > 0; |
| 226 | } |
| 227 | } |