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-rw-r--r--system/database/DB_result.php335
1 files changed, 211 insertions, 124 deletions
diff --git a/system/database/DB_result.php b/system/database/DB_result.php
index 0c4e78105..d44df6c02 100644
--- a/system/database/DB_result.php
+++ b/system/database/DB_result.php
@@ -1,20 +1,30 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
+ *
+ * NOTICE OF LICENSE
+ *
+ * Licensed under the Open Software License version 3.0
+ *
+ * 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.
*
* @package CodeIgniter
- * @author ExpressionEngine Dev Team
- * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license http://codeigniter.com/user_guide/license.html
+ * @author EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* Database Result Class
*
@@ -23,33 +33,79 @@
* class for the specific database will extend and instantiate it.
*
* @category Database
- * @author ExpressionEngine Dev Team
+ * @author EllisLab Dev Team
* @link http://codeigniter.com/user_guide/database/
*/
class CI_DB_result {
- var $conn_id = NULL;
- var $result_id = NULL;
- var $result_array = array();
- var $result_object = array();
- var $custom_result_object = array();
- var $current_row = 0;
- var $num_rows = 0;
- var $row_data = NULL;
+ public $conn_id;
+ public $result_id;
+ public $result_array = array();
+ public $result_object = array();
+ public $custom_result_object = array();
+ public $current_row = 0;
+ public $num_rows;
+ public $row_data;
+ /**
+ * Constructor
+ *
+ * @param object
+ * @return void
+ */
+ public function __construct(&$driver_object)
+ {
+ $this->conn_id = $driver_object->conn_id;
+ $this->result_id = $driver_object->result_id;
+ }
+
+ // --------------------------------------------------------------------
/**
- * Query result. Acts as a wrapper function for the following functions.
+ * Number of rows in the result set
*
- * @access public
- * @param string can be "object" or "array"
- * @return mixed either a result object or array
+ * @return int
*/
- function result($type = 'object')
+ public function num_rows()
{
- if ($type == 'array') return $this->result_array();
- else if ($type == 'object') return $this->result_object();
- else return $this->custom_result_object($type);
+ if (is_int($this->num_rows))
+ {
+ return $this->num_rows;
+ }
+ elseif (count($this->result_array) > 0)
+ {
+ return $this->num_rows = count($this->result_array);
+ }
+ elseif (count($this->result_object) > 0)
+ {
+ return $this->num_rows = count($this->result_object);
+ }
+
+ return $this->num_rows = count($this->result_array());
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Query result. Acts as a wrapper function for the following functions.
+ *
+ * @param string 'object', 'array' or a custom class name
+ * @return array
+ */
+ public function result($type = 'object')
+ {
+ if ($type === 'array')
+ {
+ return $this->result_array();
+ }
+ elseif ($type === 'object')
+ {
+ return $this->result_object();
+ }
+ else
+ {
+ return $this->custom_result_object($type);
+ }
}
// --------------------------------------------------------------------
@@ -57,64 +113,89 @@ class CI_DB_result {
/**
* Custom query result.
*
- * @param class_name A string that represents the type of object you want back
- * @return array of objects
+ * @param string A string that represents the type of object you want back
+ * @return array of objects
*/
- function custom_result_object($class_name)
+ public function custom_result_object($class_name)
{
- if (array_key_exists($class_name, $this->custom_result_object))
+ if (isset($this->custom_result_object[$class_name]))
{
return $this->custom_result_object[$class_name];
}
-
- if ($this->result_id === FALSE OR $this->num_rows() == 0)
+ elseif ( ! $this->result_id OR $this->num_rows === 0)
{
return array();
}
- // add the data to the object
- $this->_data_seek(0);
- $result_object = array();
+ // Don't fetch the result set again if we already have it
+ $_data = NULL;
+ if (($c = count($this->result_array)) > 0)
+ {
+ $_data = 'result_array';
+ }
+ elseif (($c = count($this->result_object)) > 0)
+ {
+ $_data = 'result_object';
+ }
- while ($row = $this->_fetch_object())
+ if ($_data !== NULL)
{
- $object = new $class_name();
-
- foreach ($row as $key => $value)
+ for ($i = 0; $i < $c; $i++)
{
- $object->$key = $value;
+ $this->custom_result_object[$class_name][$i] = new $class_name();
+
+ foreach ($this->{$_data}[$i] as $key => $value)
+ {
+ $this->custom_result_object[$class_name][$i]->$key = $value;
+ }
}
-
- $result_object[] = $object;
+
+ return $this->custom_result_object[$class_name];
}
- // return the array
- return $this->custom_result_object[$class_name] = $result_object;
+ $this->_data_seek(0);
+ $this->custom_result_object[$class_name] = array();
+
+ while ($row = $this->_fetch_object($class_name))
+ {
+ $this->custom_result_object[$class_name][] = $row;
+ }
+
+ return $this->custom_result_object[$class_name];
}
// --------------------------------------------------------------------
/**
- * Query result. "object" version.
+ * Query result. "object" version.
*
- * @access public
- * @return object
+ * @return array
*/
- function result_object()
+ public function result_object()
{
if (count($this->result_object) > 0)
{
return $this->result_object;
}
- // In the event that query caching is on the result_id variable
- // will return FALSE since there isn't a valid SQL resource so
- // we'll simply return an empty array.
- if ($this->result_id === FALSE OR $this->num_rows() == 0)
+ // In the event that query caching is on, the result_id variable
+ // will not be a valid resource so we'll simply return an empty
+ // array.
+ if ( ! $this->result_id OR $this->num_rows === 0)
{
return array();
}
+ if (($c = count($this->result_array)) > 0)
+ {
+ for ($i = 0; $i < $c; $i++)
+ {
+ $this->result_object[$i] = (object) $this->result_array[$i];
+ }
+
+ return $this->result_object;
+ }
+
$this->_data_seek(0);
while ($row = $this->_fetch_object())
{
@@ -127,26 +208,35 @@ class CI_DB_result {
// --------------------------------------------------------------------
/**
- * Query result. "array" version.
+ * Query result. "array" version.
*
- * @access public
* @return array
*/
- function result_array()
+ public function result_array()
{
if (count($this->result_array) > 0)
{
return $this->result_array;
}
- // In the event that query caching is on the result_id variable
- // will return FALSE since there isn't a valid SQL resource so
- // we'll simply return an empty array.
- if ($this->result_id === FALSE OR $this->num_rows() == 0)
+ // In the event that query caching is on, the result_id variable
+ // will not be a valid resource so we'll simply return an empty
+ // array.
+ if ( ! $this->result_id OR $this->num_rows === 0)
{
return array();
}
+ if (($c = count($this->result_object)) > 0)
+ {
+ for ($i = 0; $i < $c; $i++)
+ {
+ $this->result_array[$i] = (array) $this->result_object[$i];
+ }
+
+ return $this->result_array;
+ }
+
$this->_data_seek(0);
while ($row = $this->_fetch_assoc())
{
@@ -161,12 +251,11 @@ class CI_DB_result {
/**
* Query result. Acts as a wrapper function for the following functions.
*
- * @access public
* @param string
* @param string can be "object" or "array"
* @return mixed either a result object or array
*/
- function row($n = 0, $type = 'object')
+ public function row($n = 0, $type = 'object')
{
if ( ! is_numeric($n))
{
@@ -185,8 +274,8 @@ class CI_DB_result {
$n = 0;
}
- if ($type == 'object') return $this->row_object($n);
- else if ($type == 'array') return $this->row_array($n);
+ if ($type === 'object') return $this->row_object($n);
+ elseif ($type === 'array') return $this->row_array($n);
else return $this->custom_row_object($n, $type);
}
@@ -195,10 +284,9 @@ class CI_DB_result {
/**
* Assigns an item into a particular column slot
*
- * @access public
- * @return object
+ * @return void
*/
- function set_row($key, $value = NULL)
+ public function set_row($key, $value = NULL)
{
// We cache the row data for subsequent uses
if ( ! is_array($this->row_data))
@@ -212,11 +300,10 @@ class CI_DB_result {
{
$this->row_data[$k] = $v;
}
-
return;
}
- if ($key != '' AND ! is_null($value))
+ if ($key !== '' && ! is_null($value))
{
$this->row_data[$key] = $value;
}
@@ -227,42 +314,41 @@ class CI_DB_result {
/**
* Returns a single result row - custom object version
*
- * @access public
* @return object
*/
- function custom_row_object($n, $type)
+ public function custom_row_object($n, $type)
{
- $result = $this->custom_result_object($type);
+ isset($this->custom_result_object[$type]) OR $this->custom_result_object($type);
- if (count($result) == 0)
+ if (count($this->custom_result_object[$type]) === 0)
{
- return $result;
+ return NULL;
}
- if ($n != $this->current_row AND isset($result[$n]))
+ if ($n !== $this->current_row && isset($this->custom_result_object[$type][$n]))
{
$this->current_row = $n;
}
- return $result[$this->current_row];
+ return $this->custom_result_object[$type][$this->current_row];
}
+ // --------------------------------------------------------------------
+
/**
* Returns a single result row - object version
*
- * @access public
* @return object
*/
- function row_object($n = 0)
+ public function row_object($n = 0)
{
$result = $this->result_object();
-
- if (count($result) == 0)
+ if (count($result) === 0)
{
- return $result;
+ return NULL;
}
- if ($n != $this->current_row AND isset($result[$n]))
+ if ($n !== $this->current_row && isset($result[$n]))
{
$this->current_row = $n;
}
@@ -275,19 +361,17 @@ class CI_DB_result {
/**
* Returns a single result row - array version
*
- * @access public
* @return array
*/
- function row_array($n = 0)
+ public function row_array($n = 0)
{
$result = $this->result_array();
-
- if (count($result) == 0)
+ if (count($result) === 0)
{
- return $result;
+ return NULL;
}
- if ($n != $this->current_row AND isset($result[$n]))
+ if ($n !== $this->current_row && isset($result[$n]))
{
$this->current_row = $n;
}
@@ -295,24 +379,17 @@ class CI_DB_result {
return $result[$this->current_row];
}
-
// --------------------------------------------------------------------
/**
* Returns the "first" row
*
- * @access public
* @return object
*/
- function first_row($type = 'object')
+ public function first_row($type = 'object')
{
$result = $this->result($type);
-
- if (count($result) == 0)
- {
- return $result;
- }
- return $result[0];
+ return (count($result) === 0) ? NULL : $result[0];
}
// --------------------------------------------------------------------
@@ -320,18 +397,12 @@ class CI_DB_result {
/**
* Returns the "last" row
*
- * @access public
* @return object
*/
- function last_row($type = 'object')
+ public function last_row($type = 'object')
{
$result = $this->result($type);
-
- if (count($result) == 0)
- {
- return $result;
- }
- return $result[count($result) -1];
+ return (count($result) === 0) ? NULL : $result[count($result) - 1];
}
// --------------------------------------------------------------------
@@ -339,16 +410,14 @@ class CI_DB_result {
/**
* Returns the "next" row
*
- * @access public
* @return object
*/
- function next_row($type = 'object')
+ public function next_row($type = 'object')
{
$result = $this->result($type);
-
- if (count($result) == 0)
+ if (count($result) === 0)
{
- return $result;
+ return NULL;
}
if (isset($result[$this->current_row + 1]))
@@ -364,16 +433,14 @@ class CI_DB_result {
/**
* Returns the "previous" row
*
- * @access public
* @return object
*/
- function previous_row($type = 'object')
+ public function previous_row($type = 'object')
{
$result = $this->result($type);
-
- if (count($result) == 0)
+ if (count($result) === 0)
{
- return $result;
+ return NULL;
}
if (isset($result[$this->current_row - 1]))
@@ -386,25 +453,45 @@ class CI_DB_result {
// --------------------------------------------------------------------
/**
+ * Returns an unbuffered row and move pointer to next row
+ *
+ * @param string 'array', 'object' or a custom class name
+ * @return mixed either a result object or array
+ */
+ public function unbuffered_row($type = 'object')
+ {
+ if ($type === 'array')
+ {
+ return $this->_fetch_assoc();
+ }
+ elseif ($type === 'object')
+ {
+ return $this->_fetch_object();
+ }
+
+ return $this->_fetch_object($type);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* The following functions are normally overloaded by the identically named
* methods in the platform-specific driver -- except when query caching
- * is used. When caching is enabled we do not load the other driver.
+ * is used. When caching is enabled we do not load the other driver.
* These functions are primarily here to prevent undefined function errors
- * when a cached result object is in use. They are not otherwise fully
+ * when a cached result object is in use. They are not otherwise fully
* operational due to the unavailability of the database resource IDs with
* cached results.
*/
- function num_rows() { return $this->num_rows; }
- function num_fields() { return 0; }
- function list_fields() { return array(); }
- function field_data() { return array(); }
- function free_result() { return TRUE; }
- function _data_seek() { return TRUE; }
- function _fetch_assoc() { return array(); }
- function _fetch_object() { return array(); }
+ public function num_fields() { return 0; }
+ public function list_fields() { return array(); }
+ public function field_data() { return array(); }
+ public function free_result() { $this->result_id = FALSE; }
+ protected function _data_seek() { return FALSE; }
+ protected function _fetch_assoc() { return array(); }
+ protected function _fetch_object() { return array(); }
}
-// END DB_result class
/* End of file DB_result.php */
-/* Location: ./system/database/DB_result.php */
+/* Location: ./system/database/DB_result.php */ \ No newline at end of file
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-02 19:38:45 +0100