summaryrefslogtreecommitdiffstats
path: root/system/database/drivers/mysqli/mysqli_utility.php
diff options
context:
space:
mode:
authorFlorian Pritz <bluewind@xinu.at>2017-09-09 16:05:22 +0200
committerFlorian Pritz <bluewind@xinu.at>2017-09-09 16:05:22 +0200
commit27639d64d06b62f237bbde253c46cd28fdce8884 (patch)
tree7a2f00cfd44cfcdfe6cb1abc1cfc0675632948c4 /system/database/drivers/mysqli/mysqli_utility.php
parent9c5bfbee5b42ea50a5611c537b8dbf01d7a64f79 (diff)
parent6c7a4266410070d30f8f6bcdf9c9e67f3d6478e3 (diff)
Merge tag '3.1.5' into dev-ci3
Signed-off-by: Florian Pritz <bluewind@xinu.at>
Diffstat (limited to 'system/database/drivers/mysqli/mysqli_utility.php')
-rw-r--r--system/database/drivers/mysqli/mysqli_utility.php230
1 files changed, 178 insertions, 52 deletions
diff --git a/system/database/drivers/mysqli/mysqli_utility.php b/system/database/drivers/mysqli/mysqli_utility.php
index bc613a557..4a3dad4d1 100644
--- a/system/database/drivers/mysqli/mysqli_utility.php
+++ b/system/database/drivers/mysqli/mysqli_utility.php
@@ -1,87 +1,213 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP
*
- * @package CodeIgniter
- * @author ExpressionEngine Dev Team
- * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc.
- * @license http://codeigniter.com/user_guide/license.html
- * @link http://codeigniter.com
- * @since Version 1.0
+ * 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 1.3.0
* @filesource
*/
-
-// ------------------------------------------------------------------------
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* MySQLi Utility Class
*
+ * @package CodeIgniter
+ * @subpackage Drivers
* @category Database
- * @author ExpressionEngine Dev Team
- * @link http://codeigniter.com/user_guide/database/
+ * @author EllisLab Dev Team
+ * @link https://codeigniter.com/user_guide/database/
*/
class CI_DB_mysqli_utility extends CI_DB_utility {
/**
- * List databases
+ * List databases statement
*
- * @access private
- * @return bool
+ * @var string
*/
- function _list_databases()
- {
- return "SHOW DATABASES";
- }
-
- // --------------------------------------------------------------------
+ protected $_list_databases = 'SHOW DATABASES';
/**
- * Optimize table query
+ * OPTIMIZE TABLE statement
*
- * Generates a platform-specific query so that a table can be optimized
- *
- * @access private
- * @param string the table name
- * @return object
+ * @var string
*/
- function _optimize_table($table)
- {
- return "OPTIMIZE TABLE ".$this->db->_escape_identifiers($table);
- }
-
- // --------------------------------------------------------------------
+ protected $_optimize_table = 'OPTIMIZE TABLE %s';
/**
- * Repair table query
- *
- * Generates a platform-specific query so that a table can be repaired
+ * REPAIR TABLE statement
*
- * @access private
- * @param string the table name
- * @return object
+ * @var string
*/
- function _repair_table($table)
- {
- return "REPAIR TABLE ".$this->db->_escape_identifiers($table);
- }
+ protected $_repair_table = 'REPAIR TABLE %s';
// --------------------------------------------------------------------
/**
- * MySQLi Export
+ * Export
*
- * @access private
- * @param array Preferences
+ * @param array $params Preferences
* @return mixed
*/
- function _backup($params = array())
+ protected function _backup($params = array())
{
- // Currently unsupported
- return $this->db->display_error('db_unsuported_feature');
+ if (count($params) === 0)
+ {
+ return FALSE;
+ }
+
+ // Extract the prefs for simplicity
+ extract($params);
+
+ // Build the output
+ $output = '';
+
+ // Do we need to include a statement to disable foreign key checks?
+ if ($foreign_key_checks === FALSE)
+ {
+ $output .= 'SET foreign_key_checks = 0;'.$newline;
+ }
+
+ 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->escape_identifiers($this->db->database.'.'.$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)
+ {
+ $output .= 'DROP TABLE IF EXISTS '.$this->db->protect_identifiers($table).';'.$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 = $this->db->query('SELECT * FROM '.$this->db->protect_identifiers($table));
+
+ if ($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 = $query->result_id->fetch_field())
+ {
+ // Most versions of MySQL store timestamp as a string
+ $is_int[$i] = in_array(strtolower($field->type),
+ array('tinyint', 'smallint', 'mediumint', 'int', 'bigint'), //, 'timestamp'),
+ TRUE);
+
+ // Create a string of field names
+ $field_str .= $this->db->escape_identifiers($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
+ $val_str .= ($is_int[$i] === FALSE) ? $this->db->escape($v) : $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
+ $output .= 'INSERT INTO '.$this->db->protect_identifiers($table).' ('.$field_str.') VALUES ('.$val_str.');'.$newline;
+ }
+
+ $output .= $newline.$newline;
+ }
+
+ // Do we need to include a statement to re-enable foreign key checks?
+ if ($foreign_key_checks === FALSE)
+ {
+ $output .= 'SET foreign_key_checks = 1;'.$newline;
+ }
+
+ return $output;
}
-}
-/* End of file mysqli_utility.php */
-/* Location: ./system/database/drivers/mysqli/mysqli_utility.php */ \ No newline at end of file
+}