1<?php 2 3/** 4 * webtrees: online genealogy 5 * Copyright (C) 2021 webtrees development team 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 3 of the License, or 9 * (at your option) any later version. 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <https://www.gnu.org/licenses/>. 16 */ 17 18declare(strict_types=1); 19 20namespace Fisharebest\Webtrees\Services; 21 22use Fisharebest\Webtrees\Schema\MigrationInterface; 23use Fisharebest\Webtrees\Schema\SeedDefaultResnTable; 24use Fisharebest\Webtrees\Schema\SeedGedcomTable; 25use Fisharebest\Webtrees\Schema\SeedUserTable; 26use Fisharebest\Webtrees\Site; 27use Illuminate\Database\Capsule\Manager as DB; 28use PDOException; 29 30/** 31 * Update the database schema. 32 */ 33class MigrationService 34{ 35 /** 36 * Run a series of scripts to bring the database schema up to date. 37 * 38 * @param string $namespace Where to find our MigrationXXX classes 39 * @param string $schema_name Which schema to update. 40 * @param int $target_version Upgrade to this version 41 * 42 * @return bool Were any updates applied 43 * @throws PDOException 44 */ 45 public function updateSchema(string $namespace, string $schema_name, int $target_version): bool 46 { 47 try { 48 $current_version = (int) Site::getPreference($schema_name); 49 } catch (PDOException $ex) { 50 // During initial installation, the site_preference table won’t exist. 51 $current_version = 0; 52 } 53 54 if ($current_version < $target_version) { 55 try { 56 $this->transactionalTables(); 57 } catch (PDOException $ex) { 58 // There is probably nothing we can do. 59 } 60 } 61 62 $updates_applied = false; 63 64 // Update the schema, one version at a time. 65 while ($current_version < $target_version) { 66 $class = $namespace . '\\Migration' . $current_version; 67 /** @var MigrationInterface $migration */ 68 $migration = new $class(); 69 $migration->upgrade(); 70 $current_version++; 71 Site::setPreference($schema_name, (string) $current_version); 72 $updates_applied = true; 73 } 74 75 return $updates_applied; 76 } 77 78 /** 79 * Upgrades from older installations may have MyISAM or other non-transactional tables. 80 * These could prevent us from creating foreign key constraints. 81 * 82 * @return void 83 * @throws PDOException 84 */ 85 private function transactionalTables(): void 86 { 87 $connection = DB::connection(); 88 89 if ($connection->getDriverName() !== 'mysql') { 90 return; 91 } 92 93 $sql = "SELECT table_name FROM information_schema.tables JOIN information_schema.engines USING (engine) WHERE table_schema = ? AND LEFT(table_name, ?) = ? AND transactions <> 'YES'"; 94 95 $bindings = [ 96 $connection->getDatabaseName(), 97 mb_strlen($connection->getTablePrefix()), 98 $connection->getTablePrefix(), 99 ]; 100 101 $rows = DB::connection()->select($sql, $bindings); 102 103 foreach ($rows as $row) { 104 $table = $row->TABLE_NAME ?? $row->table_name; 105 $alter_sql = 'ALTER TABLE `' . $table . '` ENGINE=InnoDB'; 106 DB::connection()->statement($alter_sql); 107 } 108 } 109 110 /** 111 * Write default data to the database. 112 * 113 * @return void 114 */ 115 public function seedDatabase(): void 116 { 117 (new SeedUserTable())->run(); 118 (new SeedGedcomTable())->run(); 119 (new SeedDefaultResnTable())->run(); 120 } 121} 122