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\Firebird;

/**

 * Firebird-specific backup, import and creation methods

 *

 * @package Query

 * @subpackage Drivers

 */

class Util extends \Query\AbstractUtil {

	/**

	 * Convenience public function to generate sql for creating a db table

	 *

	 * @deprecated Use the table builder class instead

	 * @param string $name

	 * @param array $fields

	 * @param array $constraints

	 * @param bool $if_not_exists

	 * @return string

	 */

	public function create_table($name, $fields, array $constraints=array(), $if_not_exists=FALSE)

	{

		return parent::create_table($name, $fields, $constraints, FALSE);

	}

	/**

	 * Drop the selected table

	 *

	 * @param string $name

	 * @return string

	 */

	public function delete_table($name)

	{

		return 'DROP TABLE '.$this->get_driver()->quote_table($name);

	}

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

	/**

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

	 *

	 * @param string $db_path

	 * @param string $new_file

	 * @return string

	 */

	public function backup_structure()

	{

		list($db_path, $new_file) = func_get_args();

		return ibase_backup($this->get_driver()->get_service(), $db_path, $new_file, \IBASE_BKP_METADATA_ONLY);

	}

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

	/**

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

	 *

	 * @param array $exclude

	 * @param bool $system_tables

	 * @return string

	 */

	public function backup_data($exclude=array(), $system_tables=FALSE)

	{

		// Determine which tables to use

		$tables = $this->get_driver()->get_tables();

		if($system_tables == TRUE)

		{

			$tables = array_merge($tables, $this->get_driver()->get_system_tables());

		}

		// Filter out the tables you don't want

		if( ! empty($exclude))

		{

			$tables = array_diff($tables, $exclude);

		}

		$output_sql = '';

		// Get the data for each object

		foreach($tables as $t)

		{

			$sql = 'SELECT * FROM "'.trim($t).'"';

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

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

			// Don't add to the file if the table is empty

			if (count($obj_res) < 1) continue;

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

			$columns = @array_keys($obj_res[0]);

			$insert_rows = array();

			// Create the insert statements

			foreach($obj_res as $row)

			{

				$row = array_values($row);

				// Quote values as needed by type

				if(stripos($t, 'RDB$') === FALSE)

				{

					$row = array_map(array($this->get_driver(), 'quote'), $row);

					$row = array_map('trim', $row);

				}

				$row_string = 'INSERT INTO "'.trim($t).'" ("'.implode('","', $columns).'") VALUES ('.implode(',', $row).');';

				$row = NULL;

				$insert_rows[] = $row_string;

			}

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

		}

		return $output_sql;

	}

}

// End of firebird_util.php