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<?php |
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namespace Lagdo\DbAdmin\Driver\Sqlite\Db; |
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use Lagdo\DbAdmin\Driver\Entity\TableEntity; |
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use Lagdo\DbAdmin\Driver\Db\Database as AbstractDatabase; |
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use function is_object; |
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use function intval; |
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use function implode; |
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use function array_reverse; |
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class Database extends AbstractDatabase |
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{ |
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/** |
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* @param string $table |
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* @param int $autoIncrement |
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* |
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* @return void |
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*/ |
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private function setAutoIncrement(string $table, int $autoIncrement) |
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{ |
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if ($autoIncrement) { |
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$this->driver->execute('BEGIN'); |
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$this->driver->execute("UPDATE sqlite_sequence SET seq = $autoIncrement WHERE name = " . |
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$this->driver->quote($table)); // ignores error |
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if (!$this->driver->affectedRows()) { |
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$this->driver->execute('INSERT INTO sqlite_sequence (name, seq) VALUES (' . |
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$this->driver->quote($table) . ", $autoIncrement)"); |
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} |
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$this->driver->execute('COMMIT'); |
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} |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function tables() |
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{ |
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return $this->driver->keyValues('SELECT name, type FROM sqlite_master ' . |
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"WHERE type IN ('table', 'view') ORDER BY (name = 'sqlite_sequence'), name"); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function countTables(array $databases) |
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{ |
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$connection = $this->driver->createConnection(); // New connection |
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$counts = []; |
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$query = "SELECT count(*) FROM sqlite_master WHERE type IN ('table', 'view')"; |
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foreach ($databases as $database) { |
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$counts[$database] = 0; |
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$connection->open($database); |
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$statement = $connection->query($query); |
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if (is_object($statement) && ($row = $statement->fetchRow())) { |
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$counts[$database] = intval($row[0]); |
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} |
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} |
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return $counts; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function dropViews(array $views) |
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{ |
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return $this->driver->applyQueries('DROP VIEW', $views); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function dropTables(array $tables) |
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{ |
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return $this->driver->applyQueries('DROP TABLE', $tables); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function moveTables(array $tables, array $views, string $target) |
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{ |
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return false; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function truncateTables(array $tables) |
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{ |
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return $this->driver->applyQueries('DELETE FROM', $tables); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function createTable(TableEntity $tableAttrs) |
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{ |
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foreach ($tableAttrs->fields as $key => $field) { |
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$tableAttrs->fields[$key] = ' ' . implode($field); |
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} |
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$tableAttrs->fields = array_merge($tableAttrs->fields, array_filter($tableAttrs->foreign)); |
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if (!$this->driver->execute('CREATE TABLE ' . $this->driver->table($tableAttrs->name) . |
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" (\n" . implode(",\n", $tableAttrs->fields) . "\n)")) { |
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// implicit ROLLBACK to not overwrite $this->driver->error() |
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return false; |
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} |
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$this->setAutoIncrement($tableAttrs->name, $tableAttrs->autoIncrement); |
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return true; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function alterTable(string $table, TableEntity $tableAttrs) |
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{ |
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$clauses = []; |
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foreach ($tableAttrs->fields as $field) { |
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if ($field[1]) { |
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$clauses[] = ($field[0] != '' ? $field[1] : 'ADD ' . implode($field[1])); |
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} |
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} |
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$queries = []; |
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foreach ($clauses as $clause) { |
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$queries[] = 'ALTER TABLE ' . $this->driver->table($table) . ' ' . $clause; |
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} |
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if ($table != $tableAttrs->name) { |
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$queries[] = 'ALTER TABLE ' . $this->driver->table($table) . ' RENAME TO ' . |
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$this->driver->table($tableAttrs->name); |
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} |
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// TODO: Wrap queries into a transaction |
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foreach ($queries as $query) { |
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if (!$this->driver->execute($query)) { |
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return false; |
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} |
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} |
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$this->setAutoIncrement($tableAttrs->name, $tableAttrs->autoIncrement); |
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return true; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function alterIndexes(string $table, array $alter, array $drop) |
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{ |
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$queries = []; |
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foreach (array_reverse($drop) as $index) { |
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$queries[] = 'DROP INDEX ' . $this->driver->escapeId($index->name); |
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} |
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foreach (array_reverse($alter) as $index) { |
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// Can't alter primary keys |
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if ($index->type !== 'PRIMARY') { |
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$queries[] = $this->driver->sqlForCreateIndex($table, $index->type, |
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$index->name, '(' . implode(', ', $index->columns) . ')'); |
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} |
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} |
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// TODO: Wrap queries into a transaction |
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foreach ($queries as $query) { |
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$this->driver->execute($query); |
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} |
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return true; |
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} |
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} |
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lagdo /
dbadmin-driver-sqlite
