Source of file Util.php

<?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 backup, import and creation methods

 *

 * @package Query

 * @subpackage Drivers

 * @method mixed query(string $sql)

 * @method string quote(string $str)

 */

class Util extends \Query\AbstractUtil {

	/**

	 * Create an SQL backup file for the current database's data

	 *

	 * @param array $excluded

	 * @return string

	 */

	public function backup_data($excluded=array())

	{

		// Get a list of all the objects

		$sql = 'SELECT DISTINCT "name"

				FROM "sqlite_master"

				WHERE "type"=\'table\'';

		if( ! empty($excluded))

		{

			$sql .= " AND \"name\" NOT IN('".implode("','", $excluded)."')";

		}

		$res = $this->get_driver()->query($sql);

		$result = $res->fetchAll(\PDO::FETCH_ASSOC);

		unset($res);

		$output_sql = '';

		// Get the data for each object

		foreach($result as $r)

		{

			$sql = 'SELECT * FROM "'.$r['name'].'"';

			$res = $this->get_driver()->query($sql);

			$obj_res = $res->fetchAll(\PDO::FETCH_ASSOC);

			unset($res);

			// If the row is empty, continue;

			if (empty($obj_res)) continue;

			// Nab the column names by getting the keys of the first row

			$columns = array_keys(current($obj_res));

			$insert_rows = array();

			// Create the insert statements

			foreach($obj_res as $row)

			{

				$row = array_values($row);

				// Quote values as needed by type

				for($i=0, $icount=count($row); $i<$icount; $i++)

				{

					$row[$i] = (is_numeric($row[$i])) ? $row[$i] : $this->get_driver()->quote($row[$i]);

				}

				$row_string = 'INSERT INTO "'.$r['name'].'" ("'.implode('","', $columns).'") VALUES ('.implode(',', $row).');';

				unset($row);

				$insert_rows[] = $row_string;

			}

			unset($obj_res);

			$output_sql .= "\n\n".implode("\n", $insert_rows);

		}

		return $output_sql;

	}

	// --------------------------------------------------------------------------

	/**

	 * Create an SQL backup file for the current database's structure

	 *

	 * @return string

	 */

	public function backup_structure()

	{

		// Fairly easy for SQLite...just query the master table

		$sql = 'SELECT "sql" FROM "sqlite_master"';

		$res = $this->get_driver()->query($sql);

		$result = $res->fetchAll(\PDO::FETCH_ASSOC);

		$sql_array = array();

		foreach($result as $r)

		{

			$sql_array[] = $r['sql'];

		}

		$sql_structure = implode(";\n", $sql_array) . ";";

		return $sql_structure;

	}

}

// End of sqlite_util.php