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-rw-r--r--system/database/DB_driver.php104
1 files changed, 65 insertions, 39 deletions
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index 62cea758e..185f930bf 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -2,26 +2,37 @@
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.2.4 or newer
+ * An open source application development framework for PHP
*
- * NOTICE OF LICENSE
+ * This content is released under the MIT License (MIT)
*
- * Licensed under the Open Software License version 3.0
+ * Copyright (c) 2014 - 2015, British Columbia Institute of Technology
*
- * This source file is subject to the Open Software License (OSL 3.0) that is
- * bundled with this package in the files license.txt / license.rst. It is
- * also available through the world wide web at this URL:
- * http://opensource.org/licenses/OSL-3.0
- * If you did not receive a copy of the license and are unable to obtain it
- * through the world wide web, please send an email to
- * licensing@ellislab.com so we can send you a copy immediately.
+ * 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:
*
- * @package CodeIgniter
- * @author EllisLab Dev Team
+ * 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. (http://ellislab.com/)
- * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
- * @link http://codeigniter.com
- * @since Version 1.0
+ * @copyright Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
+ * @license http://opensource.org/licenses/MIT MIT License
+ * @link http://codeigniter.com
+ * @since Version 1.0.0
* @filesource
*/
defined('BASEPATH') OR exit('No direct script access allowed');
@@ -445,9 +456,23 @@ abstract class CI_DB_driver {
// --------------------------------------------------------------------
/**
+ * DB connect
+ *
+ * This is just a dummy method that all drivers will override.
+ *
+ * @return mixed
+ */
+ public function db_connect()
+ {
+ return TRUE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* Persistent database connection
*
- * @return resource
+ * @return mixed
*/
public function db_pconnect()
{
@@ -922,7 +947,12 @@ abstract class CI_DB_driver {
do
{
$c--;
- $sql = substr_replace($sql, $this->escape($binds[$c]), $matches[0][$c][1], $ml);
+ $escaped_value = $this->escape($binds[$c]);
+ if (is_array($escaped_value))
+ {
+ $escaped_value = '('.implode(',', $escaped_value).')';
+ }
+ $sql = substr_replace($sql, $escaped_value, $matches[0][$c][1], $ml);
}
while ($c !== 0);
@@ -948,7 +978,7 @@ abstract class CI_DB_driver {
* Calculate the aggregate query elapsed time
*
* @param int The number of decimal places
- * @return int
+ * @return string
*/
public function elapsed_time($decimals = 6)
{
@@ -992,7 +1022,12 @@ abstract class CI_DB_driver {
*/
public function escape($str)
{
- if (is_string($str) OR (is_object($str) && method_exists($str, '__toString')))
+ if (is_array($str))
+ {
+ $str = array_map(array(&$this, 'escape'), $str);
+ return $str;
+ }
+ elseif (is_string($str) OR (is_object($str) && method_exists($str, '__toString')))
{
return "'".$this->escape_str($str)."'";
}
@@ -1013,7 +1048,7 @@ abstract class CI_DB_driver {
/**
* Escape String
*
- * @param string $str
+ * @param string|string[] $str Input string
* @param bool $like Whether or not the string will be used in a LIKE condition
* @return string
*/
@@ -1081,10 +1116,10 @@ abstract class CI_DB_driver {
* Retrieves the primary key. It assumes that the row in the first
* position is the primary key
*
- * @param string the table name
+ * @param string $table Table name
* @return string
*/
- public function primary($table = '')
+ public function primary($table)
{
$fields = $this->list_fields($table);
return is_array($fields) ? current($fields) : FALSE;
@@ -1195,7 +1230,7 @@ abstract class CI_DB_driver {
* @param string the table name
* @return array
*/
- public function list_fields($table = '')
+ public function list_fields($table)
{
// Is there a cached result?
if (isset($this->data_cache['field_names'][$table]))
@@ -1203,11 +1238,6 @@ abstract class CI_DB_driver {
return $this->data_cache['field_names'][$table];
}
- if ($table === '')
- {
- return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
- }
-
if (FALSE === ($sql = $this->_list_columns($table)))
{
return ($this->db_debug) ? $this->display_error('db_unsupported_function') : FALSE;
@@ -1261,18 +1291,13 @@ abstract class CI_DB_driver {
/**
* Returns an object with field data
*
- * @param string the table name
- * @return object
+ * @param string $table the table name
+ * @return array
*/
- public function field_data($table = '')
+ public function field_data($table)
{
- if ($table === '')
- {
- return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
- }
-
$query = $this->query($this->_field_data($this->protect_identifiers($table, TRUE, NULL, FALSE)));
- return $query->field_data();
+ return ($query) ? $query->field_data() : FALSE;
}
// --------------------------------------------------------------------
@@ -1440,7 +1465,7 @@ abstract class CI_DB_driver {
*/
protected function _has_operator($str)
{
- return (bool) preg_match('/(<|>|!|=|\sIS\s|\sEXISTS|\sBETWEEN|\sLIKE|\sIN\s*\(|\s)/i', trim($str));
+ return (bool) preg_match('/(<|>|!|=|\sIS NULL|\sIS NOT NULL|\sEXISTS|\sBETWEEN|\sLIKE|\sIN\s*\(|\s)/i', trim($str));
}
// --------------------------------------------------------------------
@@ -1464,7 +1489,8 @@ abstract class CI_DB_driver {
'\s*(?:<|>|!)?=\s*', // =, <=, >=, !=
'\s*<>?\s*', // <, <>
'\s*>\s*', // >
- '\s+IS(?:\sNOT)?(?:\sNULL)?', // IS[ NOT] NULL
+ '\s+IS NULL', // IS NULL
+ '\s+IS NOT NULL', // IS NOT NULL
'\s+EXISTS\s*\([^\)]+\)', // EXISTS(sql)
'\s+NOT EXISTS\s*\([^\)]+\)', // NOT EXISTS(sql)
'\s+BETWEEN\s+\S+\s+AND\s+\S+', // BETWEEN value AND value
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-08 13:54:12 +0100