Source of file Driver.php
Size: 3,389 Bytes - Last Modified: 2015-11-10T09:58:10-05:00
../src/Query/Drivers/Sqlite/Driver.php
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Covered by 1 test(s):
| <?php /** * Query * * Free Query Builder / Database Abstraction Layer * * @package Query * @author Timothy J. Warren * @copyright Copyright (c) 2012 - 2014 * @link https://github.com/aviat4ion/Query * @license http://philsturgeon.co.uk/code/dbad-license */ // -------------------------------------------------------------------------- namespace Query\Drivers\Sqlite; /** * SQLite specific class * * @package Query * @subpackage Drivers */ class Driver extends \Query\AbstractDriver { /** * Reference to the last executed sql query * * @var PDOStatement */ protected $statement; /** * SQLite has a truncate optimization, * but no support for the actual keyword * @var bool */ protected $has_truncate = FALSE; /** * Open SQLite Database * * @param string $dsn * @param string $user * @param string $pass * @param array $driver_options */ public function __construct($dsn, $user=NULL, $pass=NULL, array $driver_options=array()) { if (strpos($dsn, 'sqlite:') === FALSE) $dsn = "sqlite:{$dsn}"; parent::__construct($dsn, $user, $pass); } // -------------------------------------------------------------------------- /** * List tables for the current database * * @return mixed */ public function get_tables() { $sql = $this->sql->table_list(); $res = $this->query($sql); return db_filter($res->fetchAll(\PDO::FETCH_ASSOC), 'name'); } // -------------------------------------------------------------------------- /** * Retrieve foreign keys for the table * * @param string $table * @return array */ public function get_fks($table) { $return_rows = array(); foreach(parent::get_fks($table) as $row) { $return_rows[] = array( 'child_column' => $row['from'], 'parent_table' => $row['table'], 'parent_column' => $row['to'], 'update' => $row['on_update'], 'delete' => $row['on_delete'] ); } return $return_rows; } // -------------------------------------------------------------------------- /** * Create sql for batch insert * * @codeCoverageIgnore * @param string $table * @param array $data * @return string */ public function insert_batch($table, $data=array()) { // If greater than version 3.7.11, supports the same syntax as // MySQL and Postgres if (version_compare($this->getAttribute(\PDO::ATTR_SERVER_VERSION), '3.7.11', '>=')) { return parent::insert_batch($table, $data); } // -------------------------------------------------------------------------- // Otherwise, do a union query as an analogue to a 'proper' batch insert // -------------------------------------------------------------------------- // Each member of the data array needs to be an array if ( ! is_array(current($data))) return NULL; // Start the block of sql statements $table = $this->quote_table($table); $sql = "INSERT INTO {$table} \n"; // Create a key-value mapping for each field $first = array_shift($data); $cols = array(); foreach($first as $colname => $datum) { $cols[] = $this->_quote($datum) . ' AS ' . $this->quote_ident($colname); } $sql .= "SELECT " . implode(', ', $cols) . "\n"; foreach($data as $union) { $vals = array_map(array($this, 'quote'), $union); $sql .= "UNION SELECT " . implode(',', $vals) . "\n"; } return array($sql, NULL); } } //End of sqlite_driver.php |