Rioxygen\CiCoreDatabase\CI_DB_utility

Complexity

Total Complexity

35

Size/Duplication

Total Lines	268
Duplicated Lines	0 %

Importance

Changes

0

9 Methods

Rating	Name	Duplication	Size	Complexity
B	list_databases()	0	26	6
A	__construct()	0	3	1
C	xml_from_result()	0	35	7
B	optimize_database()	0	27	5
B	csv_from_result()	0	20	6
A	database_exists()	0	3	1
A	repair_table()	0	15	4
A	optimize_table()	0	15	4
A	backup()	0	2	1

<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014 - 2017, British Columbia Institute of Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package	CodeIgniter
 * @author	EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
 * @copyright	Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/)
 * @license	http://opensource.org/licenses/MIT	MIT License
 * @link	https://codeigniter.com
 * @since	Version 1.0.0
 * @filesource
 */
namespace Rioxygen\CiCoreDatabase;

/**
 * Database Utility Class
 *
 * @category	Database
 * @author		EllisLab Dev Team
 * @link		https://codeigniter.com/user_guide/database/
 */
abstract class CI_DB_utility {

	/**
	 * Database object
	 *
	 * @var	object
	 */
	protected $db;

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

	/**
	 * List databases statement
	 *
	 * @var	string
	 */
	protected $_list_databases		= FALSE;

	/**
	 * OPTIMIZE TABLE statement
	 *
	 * @var	string
	 */
	protected $_optimize_table	= FALSE;

	/**
	 * REPAIR TABLE statement
	 *
	 * @var	string
	 */
	protected $_repair_table	= FALSE;

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

	/**
	 * Class constructor
	 *
	 * @param	object	&$db	Database object
	 * @return	void
	 */
	public function __construct(&$db)
	{
		$this->db =& $db;
	}

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

	/**
	 * List databases
	 *
	 * @return	array
	 */
	public function list_databases()
	{
		// Is there a cached result?
		if (isset($this->db->data_cache['db_names']))
		{
			return $this->db->data_cache['db_names'];
		}
		elseif ($this->_list_databases === FALSE)

The condition $this->_list_databases === FALSE can never be true.

		{
			return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE;
		}

		$this->db->data_cache['db_names'] = array();

		$query = $this->db->query($this->_list_databases);
		if ($query === FALSE)
		{
			return $this->db->data_cache['db_names'];
		}

		for ($i = 0, $query = $query->result_array(), $c = count($query); $i < $c; $i++)
		{
			$this->db->data_cache['db_names'][] = current($query[$i]);
		}

		return $this->db->data_cache['db_names'];
	}

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

	/**
	 * Determine if a particular database exists
	 *
	 * @param	string	$database_name
	 * @return	bool
	 */
	public function database_exists($database_name)
	{
		return in_array($database_name, $this->list_databases());
	}

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

	/**
	 * Optimize Table
	 *
	 * @param	string	$table_name
	 * @return	mixed
	 */
	public function optimize_table($table_name)
	{
		if ($this->_optimize_table === FALSE)

The condition $this->_optimize_table === FALSE can never be true.

		{
			return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE;
		}

		$query = $this->db->query(sprintf($this->_optimize_table, $this->db->escape_identifiers($table_name)));
		if ($query !== FALSE)
		{
			$query = $query->result_array();
			return current($query);
		}

		return FALSE;
	}

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

	/**
	 * Optimize Database
	 *
	 * @return	mixed
	 */
	public function optimize_database()
	{
		if ($this->_optimize_table === FALSE)

The condition $this->_optimize_table === FALSE can never be true.

		{
			return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE;
		}

		$result = array();
		foreach ($this->db->list_tables() as $table_name)
		{
			$res = $this->db->query(sprintf($this->_optimize_table, $this->db->escape_identifiers($table_name)));
			if (is_bool($res))
			{
				return $res;
			}

			// Build the result array...
			$res = $res->result_array();
			$res = current($res);
			$key = str_replace($this->db->database.'.', '', current($res));
			$keys = array_keys($res);
			unset($res[$keys[0]]);

			$result[$key] = $res;
		}

		return $result;
	}

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

	/**
	 * Repair Table
	 *
	 * @param	string	$table_name
	 * @return	mixed
	 */
	public function repair_table($table_name)
	{
		if ($this->_repair_table === FALSE)

The condition $this->_repair_table === FALSE can never be true.

		{
			return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE;
		}

		$query = $this->db->query(sprintf($this->_repair_table, $this->db->escape_identifiers($table_name)));
		if (is_bool($query))
		{
			return $query;
		}

		$query = $query->result_array();
		return current($query);
	}

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

    /**
     * Generate CSV from a query result object
     *
     * @param	object	$query		Query result object
     * @param	string	$delim		Delimiter (default: ,)
     * @param	string	$newline	Newline character (default: \n)
     * @param	string	$enclosure	Enclosure (default: ")
     * @return	string
     */
    public function csv_from_result($query, $delim = ',', $newline = "\n", $enclosure = '"')
    {
        if ( ! is_object($query) OR ! method_exists($query, 'list_fields')) {
            error_log('You must submit a valid result object');
        }
        $out = '';
        // First generate the headings from the table column names
        foreach ($query->list_fields() as $name) {
                $out .= $enclosure.str_replace($enclosure, $enclosure.$enclosure, $name).$enclosure.$delim;
        }
        $out = substr($out, 0, -strlen($delim)).$newline;
        // Next blast through the result array and build out the rows
        while ($row = $query->unbuffered_row('array')) {
            $line = array();
            foreach ($row as $ite) {
                $line[] = $enclosure.str_replace($enclosure, $enclosure.$enclosure, $item).$enclosure;

The variable $item seems to be never defined.

            }
            $out .= implode($delim, $line).$newline;
        }
        return $out;
    }

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

	/**
	 * Generate XML data from a query result object
	 *
	 * @param	object	$query	Query result object
	 * @param	array	$params	Any preferences
	 * @return	string
	 */
	public function xml_from_result($query, $params = array())
	{
		if ( ! is_object($query) OR ! method_exists($query, 'list_fields'))
		{
			error_log('You must submit a valid result object');
		}

		// Set our default values
		foreach (array('root' => 'root', 'element' => 'element', 'newline' => "\n", 'tab' => "\t") as $key => $val)
		{
			if ( ! isset($params[$key]))
			{
				$params[$key] = $val;
			}
		}

		// Create variables for convenience
		extract($params);

		// Load the xml helper
		get_instance()->load->helper('xml');

The function get_instance was not found. Maybe you did not declare it correctly or list all dependencies?

		// Generate the result
		$xml = '<'.$root.'>'.$newline;
		while ($row = $query->unbuffered_row())
		{
			$xml .= $tab.'<'.$element.'>'.$newline;
			foreach ($row as $key => $val)
			{
				$xml .= $tab.$tab.'<'.$key.'>'.xml_convert($val).'</'.$key.'>'.$newline;

The function xml_convert was not found. Maybe you did not declare it correctly or list all dependencies?

			}
			$xml .= $tab.'</'.$element.'>'.$newline;
		}

		return $xml.'</'.$root.'>'.$newline;
	}

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

	/**
	 * Database Backup
	 *
	 * @param	array	$params
	 * @return	string
	 */
	public function backup($params = array())

The parameter $params is not used and could be removed.

	{
            
	}

}