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<?php |
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namespace Y0lk\SQLDumper; |
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use PDO; |
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/** |
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* SQLDumper is used to create a complete dump from a SQL database |
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* |
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* @author Gabriel Jean <[email protected]> |
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*/ |
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class SQLDumper |
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{ |
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/** |
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* @var string Host for the DB connection |
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*/ |
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protected $host = ''; |
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/** |
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* @var string Name of the DB |
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*/ |
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protected $dbname = ''; |
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/** |
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* @var string Username used for the DB connection |
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*/ |
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protected $username = ''; |
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/** |
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* @var string Password used for the DB connection |
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*/ |
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protected $password = ''; |
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/** |
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* @var PDO PDO instance of the DB |
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*/ |
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protected $db = NULL; |
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/** |
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* @var TableDumperCollection Contains all TableDumper objects that will be used for this dump |
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*/ |
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protected $listTableDumpers; |
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/** |
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* @param string Host for the DB connection |
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* @param string Name of the DB |
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* @param string Username used for the DB connection |
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* @param string Password used for the DB connection |
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*/ |
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public function __construct($host, $dbname, $username, $password = '') |
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{ |
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$this->host = $host; |
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$this->dbname = $dbname; |
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$this->username = $username; |
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$this->password = $password; |
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//Init main TableDumperCollection |
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$this->listTableDumpers = new TableDumperCollection; |
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$this->connect(); |
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} |
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/** |
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* Connects to the SQL database |
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* |
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* @return void |
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*/ |
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protected function connect() |
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{ |
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$this->db = new PDO('mysql:host='.$this->host.';dbname='.$this->dbname, |
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$this->username, |
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$this->password, |
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[ |
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION |
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] |
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); |
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} |
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/** |
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* Get the main list of TableDumper |
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* |
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* @return TableDumperCollection Returns the list of table dumpers as TableDumperCollection |
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*/ |
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public function getListTableDumpers() |
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{ |
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return $this->listTableDumpers; |
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} |
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/** |
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* Set a TableDumper for the given table in order to specify certain dump options on it |
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* |
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* @param Table|string The table to set |
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* |
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* @return TableDumper Returns a TableDumper |
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*/ |
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public function table($table) |
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{ |
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return $this->listTableDumpers->addTable($table); |
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} |
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/** |
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* Set a TableDumperCollection for the given list of tables in order to specify certain dump options on them |
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* |
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* @param TableDumperCollection|array<TableDumper|Table|string> The list of tables to set (either as a TableDumperCollection, or an array containing either TableDumper objects, Table objects or table names) |
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* |
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* @return TableDumperCollection Returns a TableDumperCollection |
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*/ |
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public function listTables($listTables) |
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{ |
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return $this->listTableDumpers->addListTables($listTables); |
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} |
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/** |
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* Set a TableDumperCollection for all the tables in the database, in order to specify certain dump options on them |
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* |
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* @return TableDumperCollection Returns a TableDumperCollection |
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*/ |
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public function allTables() |
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{ |
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//Fetch all table names |
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$stmt = $this->db->prepare('SELECT table_name FROM information_schema.tables WHERE table_schema=:dbname'); |
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$stmt->bindValue(':dbname', $this->dbname, PDO::PARAM_STR); |
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$stmt->execute(); |
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$listRows = $stmt->fetchAll(PDO::FETCH_COLUMN); |
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$stmt->closeCursor(); |
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//Call list tables with returned table names |
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$listDumpers = $this->listTables($listRows); |
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return $listDumpers; |
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} |
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/** |
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* Writes the complete dump of the database to the given stream |
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* |
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* @param resource Stream to write to |
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* |
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* @return void |
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*/ |
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public function dump($stream) |
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{ |
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//TODO: Find a way to not use that an instead execute all foreign key constraints at the end |
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fwrite($stream, "SET FOREIGN_KEY_CHECKS=0;\r\n"); |
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foreach ($this->listTableDumpers as $tableDumper) { |
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$tableDumper->dump($this->db, $stream); |
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} |
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fwrite($stream, "SET FOREIGN_KEY_CHECKS=1;\r\n"); |
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} |
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/** |
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* Creates and saves the dump to a file |
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* |
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* @param string File name for the dump |
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* |
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* @return void |
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*/ |
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public function save($filename) |
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{ |
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$stream = fopen($filename, 'w'); |
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$this->dump($stream); |
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fclose($stream); |
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} |
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} |
Y0lk /
sqldumper
