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-rwxr-xr-x[-rw-r--r--]system/database/DB_utility.php113
1 files changed, 69 insertions, 44 deletions
diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php
index 94e7a0bda..a5f174f0a 100644..100755
--- a/system/database/DB_utility.php
+++ b/system/database/DB_utility.php
@@ -2,11 +2,11 @@
/**
* Code Igniter
*
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
- * @copyright Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 1.0
@@ -25,20 +25,20 @@
class CI_DB_utility extends CI_DB_forge {
var $db;
- var $data_cache = array();
+ var $data_cache = array();
/**
* Constructor
*
* Grabs the CI super object instance so we can access it.
*
- */
+ */
function CI_DB_utility()
{
// Assign the main database object to $this->db
$CI =& get_instance();
$this->db =& $CI->db;
-
+
log_message('debug', "Database Utility Class Initialized");
}
@@ -51,13 +51,13 @@ class CI_DB_utility extends CI_DB_forge {
* @return bool
*/
function list_databases()
- {
+ {
// Is there a cached result?
if (isset($this->data_cache['db_names']))
{
return $this->data_cache['db_names'];
}
-
+
$query = $this->db->query($this->_list_databases());
$dbs = array();
if ($query->num_rows() > 0)
@@ -67,7 +67,7 @@ class CI_DB_utility extends CI_DB_forge {
$dbs[] = current($row);
}
}
-
+
$this->data_cache['db_names'] = $dbs;
return $this->data_cache['db_names'];
}
@@ -75,6 +75,31 @@ class CI_DB_utility extends CI_DB_forge {
// --------------------------------------------------------------------
/**
+ * Determine if a particular database exists
+ *
+ * @access public
+ * @param string
+ * @return boolean
+ */
+ function database_exists($database_name)
+ {
+ // Some databases won't have access to the list_databases() function, so
+ // this is intended to allow them to override with their own functions as
+ // defined in $driver_utility.php
+ if (method_exists($this, '_database_exists'))
+ {
+ return $this->_database_exists($database_name);
+ }
+ else
+ {
+ return ( ! in_array($database_name, $this->list_databases())) ? FALSE : TRUE;
+ }
+ }
+
+
+ // --------------------------------------------------------------------
+
+ /**
* Optimize Table
*
* @access public
@@ -84,15 +109,15 @@ class CI_DB_utility extends CI_DB_forge {
function optimize_table($table_name)
{
$sql = $this->_optimize_table($table_name);
-
+
if (is_bool($sql))
{
show_error('db_must_use_set');
}
-
+
$query = $this->db->query($sql);
$res = $query->result_array();
-
+
// Note: Due to a bug in current() that affects some versions
// of PHP we can not pass function call directly into it
return current($res);
@@ -112,14 +137,14 @@ class CI_DB_utility extends CI_DB_forge {
foreach ($this->db->list_tables() as $table_name)
{
$sql = $this->_optimize_table($table_name);
-
+
if (is_bool($sql))
{
return $sql;
}
-
+
$query = $this->db->query($sql);
-
+
// Build the result array...
// Note: Due to a bug in current() that affects some versions
// of PHP we can not pass function call directly into it
@@ -128,7 +153,7 @@ class CI_DB_utility extends CI_DB_forge {
$key = str_replace($this->db->database.'.', '', current($res));
$keys = array_keys($res);
unset($res[$keys[0]]);
-
+
$result[$key] = $res;
}
@@ -147,20 +172,20 @@ class CI_DB_utility extends CI_DB_forge {
function repair_table($table_name)
{
$sql = $this->_repair_table($table_name);
-
+
if (is_bool($sql))
{
return $sql;
}
-
+
$query = $this->db->query($sql);
-
+
// Note: Due to a bug in current() that affects some versions
// of PHP we can not pass function call directly into it
$res = $query->result_array();
return current($res);
}
-
+
// --------------------------------------------------------------------
/**
@@ -178,25 +203,25 @@ class CI_DB_utility extends CI_DB_forge {
if ( ! is_object($query) OR ! method_exists($query, 'list_fields'))
{
show_error('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;
}
-
+
$out = rtrim($out);
$out .= $newline;
-
+
// Next blast through the result array and build out the rows
foreach ($query->result_array() as $row)
{
foreach ($row as $item)
{
- $out .= $enclosure.str_replace($enclosure, $enclosure.$enclosure, $item).$enclosure.$delim;
+ $out .= $enclosure.str_replace($enclosure, $enclosure.$enclosure, $item).$enclosure.$delim;
}
$out = rtrim($out);
$out .= $newline;
@@ -204,7 +229,7 @@ class CI_DB_utility extends CI_DB_forge {
return $out;
}
-
+
// --------------------------------------------------------------------
/**
@@ -221,7 +246,7 @@ class CI_DB_utility extends CI_DB_forge {
{
show_error('You must submit a valid result object');
}
-
+
// Set our default values
foreach (array('root' => 'root', 'element' => 'element', 'newline' => "\n", 'tab' => "\t") as $key => $val)
{
@@ -230,10 +255,10 @@ class CI_DB_utility extends CI_DB_forge {
$params[$key] = $val;
}
}
-
+
// Create variables for convenience
extract($params);
-
+
// Load the xml helper
$CI =& get_instance();
$CI->load->helper('xml');
@@ -243,7 +268,7 @@ class CI_DB_utility extends CI_DB_forge {
foreach ($query->result_array() as $row)
{
$xml .= $tab."<{$element}>".$newline;
-
+
foreach ($row as $key => $val)
{
$xml .= $tab.$tab."<{$key}>".xml_convert($val)."</{$key}>".$newline;
@@ -251,7 +276,7 @@ class CI_DB_utility extends CI_DB_forge {
$xml .= $tab."</{$element}>".$newline;
}
$xml .= "</$root>".$newline;
-
+
return $xml;
}
@@ -272,9 +297,9 @@ class CI_DB_utility extends CI_DB_forge {
{
$params = array('tables' => $params);
}
-
+
// ------------------------------------------------------
-
+
// Set up our default preferences
$prefs = array(
'tables' => array(),
@@ -300,13 +325,13 @@ class CI_DB_utility extends CI_DB_forge {
// ------------------------------------------------------
- // Are we backing up a complete database or individual tables?
+ // Are we backing up a complete database or individual tables?
// If no table names were submitted we'll fetch the entire table list
if (count($prefs['tables']) == 0)
{
$prefs['tables'] = $this->db->list_tables();
}
-
+
// ------------------------------------------------------
// Validate the format
@@ -320,13 +345,13 @@ class CI_DB_utility extends CI_DB_forge {
// Is the encoder supported? If not, we'll either issue an
// error or use plain text depending on the debug settings
if (($prefs['format'] == 'gzip' AND ! @function_exists('gzencode'))
- OR ($prefs['format'] == 'zip' AND ! @function_exists('gzcompress')))
+ OR ($prefs['format'] == 'zip' AND ! @function_exists('gzcompress')))
{
if ($this->db->db_debug)
{
return $this->db->display_error('db_unsuported_compression');
}
-
+
$prefs['format'] = 'txt';
}
@@ -340,7 +365,7 @@ class CI_DB_utility extends CI_DB_forge {
}
// ------------------------------------------------------
-
+
// Was a Gzip file requested?
if ($prefs['format'] == 'gzip')
{
@@ -348,7 +373,7 @@ class CI_DB_utility extends CI_DB_forge {
}
// ------------------------------------------------------
-
+
// Was a text file requested?
if ($prefs['format'] == 'txt')
{
@@ -357,7 +382,7 @@ class CI_DB_utility extends CI_DB_forge {
// ------------------------------------------------------
- // Was a Zip file requested?
+ // Was a Zip file requested?
if ($prefs['format'] == 'zip')
{
// If they included the .zip file extension we'll remove it
@@ -365,7 +390,7 @@ class CI_DB_utility extends CI_DB_forge {
{
$prefs['filename'] = str_replace('.zip', '', $prefs['filename']);
}
-
+
// Tack on the ".sql" file extension if needed
if ( ! preg_match("|.+?\.sql$|", $prefs['filename']))
{
@@ -373,13 +398,13 @@ class CI_DB_utility extends CI_DB_forge {
}
// Load the Zip class and output it
-
+
$CI =& get_instance();
$CI->load->library('zip');
- $CI->zip->add_data($prefs['filename'], $this->_backup($prefs));
+ $CI->zip->add_data($prefs['filename'], $this->_backup($prefs));
return $CI->zip->get_zip();
}
-
+
}
}
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-02 23:45:51 +0100