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<?php |
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namespace Lagdo\DbAdmin\Driver\Sqlite\Db; |
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use Lagdo\DbAdmin\Driver\Db\ConnectionInterface; |
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use Lagdo\DbAdmin\Driver\Entity\IndexEntity; |
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use Lagdo\DbAdmin\Driver\Entity\TableEntity; |
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trait TableTrait |
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{ |
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/** |
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* @inheritDoc |
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*/ |
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public function isView(TableEntity $tableStatus) |
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{ |
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return $tableStatus->engine == 'view'; |
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} |
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/** |
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* @param string $table |
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* |
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* @return array |
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*/ |
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private function queryStatus(string $table = '') |
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{ |
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$query = "SELECT name AS Name, type AS Engine, 'rowid' AS Oid, '' AS Auto_increment " . |
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"FROM sqlite_master WHERE type IN ('table', 'view') " . |
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($table != "" ? "AND name = " . $this->driver->quote($table) : "ORDER BY name"); |
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return $this->driver->rows($query); |
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} |
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/** |
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* @param array $row |
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* |
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* @return TableEntity |
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*/ |
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private function makeStatus(array $row) |
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{ |
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$status = new TableEntity($row['Name']); |
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$status->engine = $row['Engine']; |
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$status->oid = $row['Oid']; |
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// $status->Auto_increment = $row['Auto_increment']; |
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$query = 'SELECT COUNT(*) FROM ' . $this->driver->escapeId($row['Name']); |
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$status->rows = $this->connection->result($query); |
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return $status; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function tableStatus(string $table, bool $fast = false) |
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{ |
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$rows = $this->queryStatus($table); |
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if (!($row = reset($rows))) { |
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return null; |
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} |
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return $this->makeStatus($row); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function tableStatuses(bool $fast = false) |
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{ |
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$tables = []; |
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$rows = $this->queryStatus(); |
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foreach ($rows as $row) { |
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$tables[$row['Name']] = $this->makeStatus($row); |
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} |
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return $tables; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function tableNames() |
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{ |
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$tables = []; |
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$rows = $this->queryStatus(); |
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foreach ($rows as $row) { |
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$tables[] = $row['Name']; |
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} |
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return $tables; |
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} |
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/** |
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* @param string $table |
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* @param ConnectionInterface $connection |
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* |
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* @return IndexEntity|null |
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*/ |
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private function queryPrimaryIndex(string $table, ConnectionInterface $connection) |
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{ |
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$primaryIndex = null; |
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$query = "SELECT sql FROM sqlite_master WHERE type = 'table' AND name = " . $this->driver->quote($table); |
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$result = $connection->result($query); |
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if (preg_match('~\bPRIMARY\s+KEY\s*\((([^)"]+|"[^"]*"|`[^`]*`)++)~i', $result, $match)) { |
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$primaryIndex = new IndexEntity(); |
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$primaryIndex->type = "PRIMARY"; |
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preg_match_all('~((("[^"]*+")+|(?:`[^`]*+`)+)|(\S+))(\s+(ASC|DESC))?(,\s*|$)~i', |
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$match[1], $matches, PREG_SET_ORDER); |
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foreach ($matches as $match) { |
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$primaryIndex->columns[] = $this->driver->unescapeId($match[2]) . $match[4]; |
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$primaryIndex->descs[] = (preg_match('~DESC~i', $match[5]) ? '1' : null); |
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} |
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} |
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return $primaryIndex; |
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} |
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/** |
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* @param string $table |
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* @param ConnectionInterface $connection |
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* |
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* @return IndexEntity |
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*/ |
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private function makePrimaryIndex(string $table, ConnectionInterface $connection) |
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{ |
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$primaryIndex = $this->queryPrimaryIndex($table, $connection); |
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if ($primaryIndex !== null) { |
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return $primaryIndex; |
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} |
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foreach ($this->fields($table) as $name => $field) { |
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if (!$field->primary) { |
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continue; |
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} |
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if ($primaryIndex === null) { |
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$primaryIndex = new IndexEntity(); |
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} |
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$primaryIndex->type = "PRIMARY"; |
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$primaryIndex->columns = [$name]; |
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$primaryIndex->lengths = []; |
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$primaryIndex->descs = [null]; |
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} |
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return $primaryIndex; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function tableHelp(string $name) |
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{ |
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if ($name == "sqlite_sequence") { |
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return "fileformat2.html#seqtab"; |
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} |
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if ($name == "sqlite_master") { |
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return "fileformat2.html#$name"; |
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} |
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} |
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} |
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lagdo /
dbadmin-driver-sqlite
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