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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Installer; |
| 4 | |
| 5 | use MediaWiki\Installer\Task\ITaskContext; |
| 6 | use MediaWiki\Status\Status; |
| 7 | use Wikimedia\Rdbms\DatabaseDomain; |
| 8 | use Wikimedia\Rdbms\IDatabase; |
| 9 | use Wikimedia\Rdbms\ILoadBalancer; |
| 10 | |
| 11 | /** |
| 12 | * Common code for MySQL and PostgreSQL, which are similar due to the fact that |
| 13 | * databases can be created by getting a connection to a network service. |
| 14 | * |
| 15 | * SQLite does not inherit this because its connection handles can't operate on |
| 16 | * databases other than the one you originally connected to. |
| 17 | */ |
| 18 | abstract class NetworkedDatabaseCreator extends DatabaseCreator { |
| 19 | /** @inheritDoc */ |
| 20 | public function existsLocally( $database ) { |
| 21 | $connStatus = $this->context->getConnection( ITaskContext::CONN_CREATE_DATABASE ); |
| 22 | if ( !$connStatus->isOK() ) { |
| 23 | return false; |
| 24 | } |
| 25 | return $this->existsInConnection( $connStatus->getDB(), $database ); |
| 26 | } |
| 27 | |
| 28 | /** @inheritDoc */ |
| 29 | public function existsInLoadBalancer( ILoadBalancer $loadBalancer, $database ) { |
| 30 | $conn = $loadBalancer->getConnection( DB_PRIMARY, [], DatabaseDomain::newUnspecified()->getId() ); |
| 31 | return $this->existsInConnection( $conn, $database ); |
| 32 | } |
| 33 | |
| 34 | /** @inheritDoc */ |
| 35 | public function createLocally( $database ): Status { |
| 36 | $connStatus = $this->context->getConnection( ITaskContext::CONN_CREATE_DATABASE ); |
| 37 | if ( !$connStatus->isOK() ) { |
| 38 | return $connStatus; |
| 39 | } |
| 40 | $conn = $connStatus->getDB(); |
| 41 | return $this->createInConnection( $conn, $database ); |
| 42 | } |
| 43 | |
| 44 | /** @inheritDoc */ |
| 45 | public function createInLoadBalancer( ILoadBalancer $loadBalancer, $database ): Status { |
| 46 | $conn = $loadBalancer->getConnection( DB_PRIMARY, [], DatabaseDomain::newUnspecified()->getId() ); |
| 47 | return $this->createInConnection( $conn, $database ); |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Determine whether a database exists on a connection |
| 52 | * |
| 53 | * @param IDatabase $conn |
| 54 | * @param string $database |
| 55 | * @return bool |
| 56 | */ |
| 57 | abstract protected function existsInConnection( IDatabase $conn, $database ); |
| 58 | |
| 59 | /** |
| 60 | * Create a database on a connection |
| 61 | * |
| 62 | * @param IDatabase $conn |
| 63 | * @param string $database |
| 64 | * @return Status |
| 65 | */ |
| 66 | abstract protected function createInConnection( IDatabase $conn, $database ): Status; |
| 67 | } |