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<?php |
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namespace ByJG\DbMigration\Database; |
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use Psr\Http\Message\UriInterface; |
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class SqliteDatabase extends AbstractDatabase |
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{ |
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public static function schema() |
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{ |
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return 'sqlite'; |
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} |
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public static function prepareEnvironment(UriInterface $uri) |
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{ |
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} |
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public function createDatabase() |
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{ |
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} |
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public function dropDatabase() |
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{ |
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$iterator = $this->getDbDriver()->getIterator(" |
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select |
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'drop ' || type || ' ' || name || ';' as command |
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from sqlite_master |
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where name <> 'sqlite_sequence' and name not like 'sqlite_autoindex_%' |
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order by CASE type |
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WHEN 'index' THEN 0 |
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WHEN 'trigger' THEN 1 |
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WHEN 'view' THEN 2 |
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ELSE 99 |
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END; |
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"); |
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foreach ($iterator as $row) { |
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$this->getDbDriver()->execute($row->get('command')); |
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} |
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} |
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/** |
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* @throws \ByJG\DbMigration\Exception\DatabaseNotVersionedException |
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* @throws \ByJG\DbMigration\Exception\OldVersionSchemaException |
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*/ |
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public function createVersion() |
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{ |
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$this->getDbDriver()->execute('CREATE TABLE IF NOT EXISTS ' . $this->getMigrationTable() . ' (version int, status varchar(20), PRIMARY KEY (version))'); |
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$this->checkExistsVersion(); |
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} |
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public function executeSql($sql) |
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{ |
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$statements = preg_split("/;(\r\n|\r|\n)/", $sql); |
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foreach ($statements as $sql) { |
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$this->executeSqlInternal($sql); |
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} |
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} |
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protected function executeSqlInternal($sql) |
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{ |
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if (empty(trim($sql))) { |
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return; |
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} |
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$this->getDbDriver()->execute($sql); |
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} |
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protected function isTableExists($schema, $table) |
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{ |
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$count = $this->getDbDriver()->getScalar( |
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"SELECT count(*) FROM sqlite_master WHERE type='table' AND name=[[table]]", |
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[ |
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"table" => $table |
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] |
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); |
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return (intval($count) !== 0); |
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} |
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public function isDatabaseVersioned() |
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{ |
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return $this->isTableExists(null, $this->getMigrationTable()); |
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} |
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} |
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byjg /
migration
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