Source

CodeIgniter Reactor / system / database / drivers / mysql / mysql_utility.php

Derek Jones a49fbb8 
Derek Allard f7a9e01 


Greg Aker 7ec133e 
Derek Allard f7a9e01 


Greg Aker 9c4d383 
Derek Allard f7a9e01 












































































Barry Mieny 982b43c 
Derek Allard f7a9e01 











Barry Mieny 982b43c 
Derek Allard f7a9e01 




Barry Mieny 982b43c 
Derek Allard f7a9e01 


Barry Mieny 982b43c 

Derek Allard f7a9e01 

Barry Mieny 982b43c 
Derek Allard f7a9e01 




Barry Mieny 982b43c 
Derek Allard f7a9e01 


Barry Mieny 982b43c 
Derek Allard f7a9e01 







Barry Mieny 982b43c 
Derek Allard f7a9e01 



Barry Mieny 982b43c 
Derek Allard f7a9e01 
Derek Jones a49fbb8 
Derek Allard f7a9e01 
Barry Mieny 982b43c 
Derek Allard f7a9e01 







Barry Mieny 982b43c 
Derek Allard f7a9e01 

Barry Mieny 982b43c 
Derek Allard f7a9e01 



Barry Mieny 982b43c 
Derek Allard f7a9e01 

Barry Mieny 982b43c 

Derek Allard f7a9e01 



Barry Mieny 982b43c 
Derek Allard f7a9e01 

















Barry Mieny 982b43c 


Derek Allard f7a9e01 



Barry Mieny 982b43c 
Derek Allard f7a9e01 

Barry Mieny 982b43c 
Derek Allard f7a9e01 


Barry Mieny 982b43c 
Derek Allard f7a9e01 







Derek Jones e089006 
<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */

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

/**
 * MySQL Utility Class
 *
 * @category	Database
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/database/
 */
class CI_DB_mysql_utility extends CI_DB_utility {

	/**
	 * List databases
	 *
	 * @access	private
	 * @return	bool
	 */
	function _list_databases()
	{
		return "SHOW DATABASES";
	}

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

	/**
	 * Optimize table query
	 *
	 * Generates a platform-specific query so that a table can be optimized
	 *
	 * @access	private
	 * @param	string	the table name
	 * @return	object
	 */
	function _optimize_table($table)
	{
		return "OPTIMIZE TABLE ".$this->db->_escape_identifiers($table);
	}

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

	/**
	 * Repair table query
	 *
	 * Generates a platform-specific query so that a table can be repaired
	 *
	 * @access	private
	 * @param	string	the table name
	 * @return	object
	 */
	function _repair_table($table)
	{
		return "REPAIR TABLE ".$this->db->_escape_identifiers($table);
	}

	// --------------------------------------------------------------------
	/**
	 * MySQL Export
	 *
	 * @access	private
	 * @param	array	Preferences
	 * @return	mixed
	 */
	function _backup($params = array())
	{
		if (count($params) == 0)
		{
			return FALSE;
		}

		// Extract the prefs for simplicity
		extract($params);

		// Build the output
		$output = '';
		foreach ((array)$tables as $table)
		{
			// Is the table in the "ignore" list?
			if (in_array($table, (array)$ignore, TRUE))
			{
				continue;
			}

			// Get the table schema
			$query = $this->db->query("SHOW CREATE TABLE `".$this->db->database.'`.'.$table);

			// No result means the table name was invalid
			if ($query === FALSE)
			{
				continue;
			}

			// Write out the table schema
			$output .= '#'.$newline.'# TABLE STRUCTURE FOR: '.$table.$newline.'#'.$newline.$newline;

			if ($add_drop == TRUE)
			{
				$output .= 'DROP TABLE IF EXISTS '.$table.';'.$newline.$newline;
			}

			$i = 0;
			$result = $query->result_array();
			foreach ($result[0] as $val)
			{
				if ($i++ % 2)
				{
					$output .= $val.';'.$newline.$newline;
				}
			}

			// If inserts are not needed we're done...
			if ($add_insert == FALSE)
			{
				continue;
			}

			// Grab all the data from the current table
			$query = $this->db->query("SELECT * FROM $table");

			if ($query->num_rows() == 0)
			{
				continue;
			}

			// Fetch the field names and determine if the field is an
			// integer type.  We use this info to decide whether to
			// surround the data with quotes or not

			$i = 0;
			$field_str = '';
			$is_int = array();
			while ($field = mysql_fetch_field($query->result_id))
			{
				// Most versions of MySQL store timestamp as a string
				$is_int[$i] = (in_array(
										strtolower(mysql_field_type($query->result_id, $i)),
										array('tinyint', 'smallint', 'mediumint', 'int', 'bigint'), //, 'timestamp'),
										TRUE)
										) ? TRUE : FALSE;

				// Create a string of field names
				$field_str .= '`'.$field->name.'`, ';
				$i++;
			}

			// Trim off the end comma
			$field_str = preg_replace( "/, $/" , "" , $field_str);


			// Build the insert string
			foreach ($query->result_array() as $row)
			{
				$val_str = '';

				$i = 0;
				foreach ($row as $v)
				{
					// Is the value NULL?
					if ($v === NULL)
					{
						$val_str .= 'NULL';
					}
					else
					{
						// Escape the data if it's not an integer
						if ($is_int[$i] == FALSE)
						{
							$val_str .= $this->db->escape($v);
						}
						else
						{
							$val_str .= $v;
						}
					}

					// Append a comma
					$val_str .= ', ';
					$i++;
				}

				// Remove the comma at the end of the string
				$val_str = preg_replace( "/, $/" , "" , $val_str);

				// Build the INSERT string
				$output .= 'INSERT INTO '.$table.' ('.$field_str.') VALUES ('.$val_str.');'.$newline;
			}

			$output .= $newline.$newline;
		}

		return $output;
	}
}

/* End of file mysql_utility.php */
/* Location: ./system/database/drivers/mysql/mysql_utility.php */