summaryrefslogtreecommitdiffstats
path: root/system/database/DB_utility.php
diff options
context:
space:
mode:
Diffstat (limited to 'system/database/DB_utility.php')
-rw-r--r--system/database/DB_utility.php924
1 files changed, 454 insertions, 470 deletions
diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php
index 8ce19b17f..9533ec607 100644
--- a/system/database/DB_utility.php
+++ b/system/database/DB_utility.php
@@ -1,471 +1,455 @@
-<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package CodeIgniter
- * @author Rick Ellis
- * @copyright Copyright (c) 2006, EllisLab, Inc.
- * @license http://www.codeignitor.com/user_guide/license.html
- * @link http://www.codeigniter.com
- * @since Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Database Utility Class
- *
- * @category Database
- * @author Rick Ellis
- * @link http://www.codeigniter.com/user_guide/database/
- */
-class CI_DB_utility {
-
- var $db;
- 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 =& $CI->db;
-
- log_message('debug', "Database Utility Class Initialized");
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Create database
- *
- * @access public
- * @param string the database name
- * @return bool
- */
- function create_database($db_name)
- {
- $sql = $this->_create_database($db_name);
-
- if (is_bool($sql))
- {
- return $sql;
- }
-
- return $this->db->query($sql);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Drop database
- *
- * @access public
- * @param string the database name
- * @return bool
- */
- function drop_database($db_name)
- {
- $sql = $this->_drop_database($db_name);
-
- if (is_bool($sql))
- {
- return $sql;
- }
-
- return $this->db->query($sql);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * List databases
- *
- * @access public
- * @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)
- {
- foreach ($query->result_array() as $row)
- {
- $dbs[] = current($row);
- }
- }
-
- $this->data_cache['db_names'] = $dbs;
- return $this->data_cache['db_names'];
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Optimize Table
- *
- * @access public
- * @param string the table name
- * @return bool
- */
- function optimize_table($table_name)
- {
- $sql = $this->_optimize_table($table_name);
-
- if (is_bool($sql))
- {
- return $sql;
- }
-
- $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);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Optimize Database
- *
- * @access public
- * @return array
- */
- function optimize_database()
- {
- $result = array();
- foreach ($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
- $res = $query->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 $result;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Optimize Table
- *
- * @access public
- * @param string the table name
- * @return bool
- */
-
- function repair_table($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);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Drop Table
- *
- * @access public
- * @param string the table name
- * @return bool
- */
- function drop_table($table_name)
- {
- $sql = $this->_drop_table($table_name);
-
- if (is_bool($sql))
- {
- return $sql;
- }
-
- return $this->db->query($sql);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Generate CSV from a query result object
- *
- * @access public
- * @param object The query result object
- * @param string The delimiter - tab by default
- * @param string The newline character - \n by default
- * @return string
- */
- function csv_from_result($query, $delim = ',', $newline = '', $enclosure = '"')
- {
- if (!is_a($query, 'CI_DB_result')) {
- show_error('CI_DB_utility::csv_from_result - You must submit a valid result object');
- }
-
- if ($delim === '') {
- show_error('CI_DB_utility::csv_from_result - Empty delimiters are not permitted');
- }
-
- if ($newline === '') {
- $newline = (stripos(getenv('HTTP_USER_AGENT'), 'win') !== false) ? "\r\n" : "\n";
- }
-
- if ((strpos($enclosure, $newline) !== false) or (($enclosure !== '') and (strpos($newline, $enclosure) !== false))) {
- show_error('CI_DB_utility::csv_from_result - Field enclosure must not be contained within delimiter (or vice versa)');
- }
-
- $out = '';
-
- // First generate the headings from the table column names
- foreach ($query->list_fields() as $name) {
- // there's no point enclosing strings that do not require it
- if (strpos($name, $delim) !== false) {
- $out .= $enclosure . $name . $enclosure . $delim;
- } else {
- $out .= $name . $delim;
- }
- }
-
- $out = rtrim($out, $delim) . $newline;
-
- // Next blast through the result array and build out the rows
- foreach ($query->result_array() as $row) {
- foreach ($row as $item) {
- // there's no point enclosing strings that do not require it
- if (strpos($item, $delim) !== false) {
- $out .= $enclosure . $item . $enclosure . $delim;
- } else {
- $out .= $item . $delim;
- }
- }
- $out = rtrim($out, $delim) . $newline;
- }
-
- return $out;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Generate XML data from a query result object
- *
- * @access public
- * @param object The query result object
- * @param array Any preferences
- * @return string
- */
- function xml_from_result($query, $params = array())
- {
- if ( ! is_object($query) OR ! method_exists($query, 'field_names'))
- {
- 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 => $val)
- {
- if ( ! isset($params[$key]))
- {
- $params[$key] = $val;
- }
- }
-
- // Create variables for convenience
- extract($params);
-
- // Load the xml helper
- $CI =& get_instance();
- $CI->load->helper('xml');
-
- // Generate the result
- $xml = "<{$root}>".$newline;
- foreach ($query->result_array() as $row)
- {
- $xml .= $tab."<{$element}>".$newline;
-
- foreach ($row as $key => $val)
- {
- $xml .= $tab.$tab."<{$key}>".xml_convert($val)."</{$key}>".$newline;
- }
- $xml .= $tab."</{$element}>".$newline;
- }
- $xml .= "</$root>".$newline;
-
- return $xml;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Database Backup
- *
- * @access public
- * @return void
- */
- function backup($params = array())
- {
- // If the parameters have not been submitted as an
- // array then we know that it is simply the table
- // name, which is a valid short cut.
- if (is_string($params))
- {
- $params = array('tables' => $params);
- }
-
- // ------------------------------------------------------
-
- // Set up our default preferences
- $prefs = array(
- 'tables' => array(),
- 'ignore' => array(),
- 'filename' => '',
- 'format' => 'gzip', // gzip, zip, txt
- 'add_drop' => TRUE,
- 'add_insert' => TRUE,
- 'newline' => "\n"
- );
-
- // Did the user submit any preferences? If so set them....
- if (count($params) > 0)
- {
- foreach ($prefs as $key => $val)
- {
- if (isset($params[$key]))
- {
- $prefs[$key] = $params[$key];
- }
- }
- }
-
- // ------------------------------------------------------
-
- // 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'] = $this->db->list_tables();
- }
-
- // ------------------------------------------------------
-
- // Validate the format
- if ( ! in_array($prefs['format'], array('gzip', 'zip', 'txt'), TRUE))
- {
- $prefs['format'] = 'txt';
- }
-
- // ------------------------------------------------------
-
- // Is the encoder supported? If not, we'll either issue an
- // error or use plain text depending on the debug settings
- if (($prefs['format'] == 'gzip' AND ! @function_exists('gzencode'))
- OR ($prefs['format'] == 'zip' AND ! @function_exists('gzcompress')))
- {
- if ($this->db->db_debug)
- {
- return $this->db->display_error('db_unsuported_compression');
- }
-
- $prefs['format'] = 'txt';
- }
-
- // ------------------------------------------------------
-
- // Set the filename if not provided - Only needed with Zip files
- if ($prefs['filename'] == '' AND $prefs['format'] == 'zip')
- {
- $prefs['filename'] = (count($prefs['tables']) == 1) ? $prefs['tables'] : $this->db->database;
- $prefs['filename'] .= '_'.date('Y-m-d_H-i', time());
- }
-
- // ------------------------------------------------------
-
- // Was a Gzip file requested?
- if ($prefs['format'] == 'gzip')
- {
- return gzencode($this->_backup($prefs));
- }
-
- // ------------------------------------------------------
-
- // Was a text file requested?
- if ($prefs['format'] == 'txt')
- {
- return $this->_backup($prefs);
- }
-
- // ------------------------------------------------------
-
- // Was a Zip file requested?
- if ($prefs['format'] == 'zip')
- {
- // If they included the .zip file extension we'll remove it
- if (preg_match("|.+?\.zip$|", $prefs['filename']))
- {
- $prefs['filename'] = str_replace('.zip', '', $prefs['filename']);
- }
-
- // Tack on the ".sql" file extension if needed
- if ( ! preg_match("|.+?\.sql$|", $prefs['filename']))
- {
- $prefs['filename'] .= '.sql';
- }
-
- // Load the Zip class and output it
-
- $CI =& get_instance();
- $CI->load->library('zip');
- $CI->zip->add_data($prefs['filename'], $this->_backup($prefs));
- return $CI->zip->get_zip();
- }
-
- }
-
-
-
-
-
-
-}
-
+<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Code Igniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author Rick Ellis
+ * @copyright Copyright (c) 2006, pMachine, Inc.
+ * @license http://www.codeignitor.com/user_guide/license.html
+ * @link http://www.codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Database Utility Class
+ *
+ * @category Database
+ * @author Rick Ellis
+ * @link http://www.codeigniter.com/user_guide/database/
+ */
+class CI_DB_utility {
+
+ var $db;
+ 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 =& $CI->db;
+
+ log_message('debug', "Database Utility Class Initialized");
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Create database
+ *
+ * @access public
+ * @param string the database name
+ * @return bool
+ */
+ function create_database($db_name)
+ {
+ $sql = $this->_create_database($db_name);
+
+ if (is_bool($sql))
+ {
+ return $sql;
+ }
+
+ return $this->db->query($sql);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Drop database
+ *
+ * @access public
+ * @param string the database name
+ * @return bool
+ */
+ function drop_database($db_name)
+ {
+ $sql = $this->_drop_database($db_name);
+
+ if (is_bool($sql))
+ {
+ return $sql;
+ }
+
+ return $this->db->query($sql);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * List databases
+ *
+ * @access public
+ * @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)
+ {
+ foreach ($query->result_array() as $row)
+ {
+ $dbs[] = current($row);
+ }
+ }
+
+ $this->data_cache['db_names'] = $dbs;
+ return $this->data_cache['db_names'];
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Optimize Table
+ *
+ * @access public
+ * @param string the table name
+ * @return bool
+ */
+ function optimize_table($table_name)
+ {
+ $sql = $this->_optimize_table($table_name);
+
+ if (is_bool($sql))
+ {
+ return $sql;
+ }
+
+ $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);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Optimize Database
+ *
+ * @access public
+ * @return array
+ */
+ function optimize_database()
+ {
+ $result = array();
+ foreach ($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
+ $res = $query->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 $result;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Optimize Table
+ *
+ * @access public
+ * @param string the table name
+ * @return bool
+ */
+
+ function repair_table($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);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Drop Table
+ *
+ * @access public
+ * @param string the table name
+ * @return bool
+ */
+ function drop_table($table_name)
+ {
+ $sql = $this->_drop_table($table_name);
+
+ if (is_bool($sql))
+ {
+ return $sql;
+ }
+
+ return $this->db->query($sql);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Generate CSV from a query result object
+ *
+ * @access public
+ * @param object The query result object
+ * @param string The delimiter - tab by default
+ * @param string The newline character - \n by default
+ * @return string
+ */
+ function csv_from_result($query, $delim = "\t", $newline = "\n")
+ {
+ if ( ! is_object($query) OR ! method_exists($query, 'field_names'))
+ {
+ 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 .= $name.$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 .= $item.$delim;
+ }
+ $out = rtrim($out);
+ $out .= $newline;
+ }
+
+ return $out;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Generate XML data from a query result object
+ *
+ * @access public
+ * @param object The query result object
+ * @param array Any preferences
+ * @return string
+ */
+ function xml_from_result($query, $params = array())
+ {
+ if ( ! is_object($query) OR ! method_exists($query, 'field_names'))
+ {
+ 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 => $val)
+ {
+ if ( ! isset($params[$key]))
+ {
+ $params[$key] = $val;
+ }
+ }
+
+ // Create variables for convenience
+ extract($params);
+
+ // Load the xml helper
+ $CI =& get_instance();
+ $CI->load->helper('xml');
+
+ // Generate the result
+ $xml = "<{$root}>".$newline;
+ foreach ($query->result_array() as $row)
+ {
+ $xml .= $tab."<{$element}>".$newline;
+
+ foreach ($row as $key => $val)
+ {
+ $xml .= $tab.$tab."<{$key}>".xml_convert($val)."</{$key}>".$newline;
+ }
+ $xml .= $tab."</{$element}>".$newline;
+ }
+ $xml .= "</$root>".$newline;
+
+ return $xml;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Database Backup
+ *
+ * @access public
+ * @return void
+ */
+ function backup($params = array())
+ {
+ // If the parameters have not been submitted as an
+ // array then we know that it is simply the table
+ // name, which is a valid short cut.
+ if (is_string($params))
+ {
+ $params = array('tables' => $params);
+ }
+
+ // ------------------------------------------------------
+
+ // Set up our default preferences
+ $prefs = array(
+ 'tables' => array(),
+ 'ignore' => array(),
+ 'filename' => '',
+ 'format' => 'gzip', // gzip, zip, txt
+ 'add_drop' => TRUE,
+ 'add_insert' => TRUE,
+ 'newline' => "\n"
+ );
+
+ // Did the user submit any preferences? If so set them....
+ if (count($params) > 0)
+ {
+ foreach ($prefs as $key => $val)
+ {
+ if (isset($params[$key]))
+ {
+ $prefs[$key] = $params[$key];
+ }
+ }
+ }
+
+ // ------------------------------------------------------
+
+ // 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'] = $this->db->list_tables();
+ }
+
+ // ------------------------------------------------------
+
+ // Validate the format
+ if ( ! in_array($prefs['format'], array('gzip', 'zip', 'txt'), TRUE))
+ {
+ $prefs['format'] = 'txt';
+ }
+
+ // ------------------------------------------------------
+
+ // Is the encoder supported? If not, we'll either issue an
+ // error or use plain text depending on the debug settings
+ if (($prefs['format'] == 'gzip' AND ! @function_exists('gzencode'))
+ OR ($prefs['format'] == 'zip' AND ! @function_exists('gzcompress')))
+ {
+ if ($this->db->db_debug)
+ {
+ return $this->db->display_error('db_unsuported_compression');
+ }
+
+ $prefs['format'] = 'txt';
+ }
+
+ // ------------------------------------------------------
+
+ // Set the filename if not provided - Only needed with Zip files
+ if ($prefs['filename'] == '' AND $prefs['format'] == 'zip')
+ {
+ $prefs['filename'] = (count($prefs['tables']) == 1) ? $prefs['tables'] : $this->db->database;
+ $prefs['filename'] .= '_'.date('Y-m-d_H-i', time());
+ }
+
+ // ------------------------------------------------------
+
+ // Was a Gzip file requested?
+ if ($prefs['format'] == 'gzip')
+ {
+ return gzencode($this->_backup($prefs));
+ }
+
+ // ------------------------------------------------------
+
+ // Was a text file requested?
+ if ($prefs['format'] == 'txt')
+ {
+ return $this->_backup($prefs);
+ }
+
+ // ------------------------------------------------------
+
+ // Was a Zip file requested?
+ if ($prefs['format'] == 'zip')
+ {
+ // If they included the .zip file extension we'll remove it
+ if (preg_match("|.+?\.zip$|", $prefs['filename']))
+ {
+ $prefs['filename'] = str_replace('.zip', '', $prefs['filename']);
+ }
+
+ // Tack on the ".sql" file extension if needed
+ if ( ! preg_match("|.+?\.sql$|", $prefs['filename']))
+ {
+ $prefs['filename'] .= '.sql';
+ }
+
+ // Load the Zip class and output it
+
+ $CI =& get_instance();
+ $CI->load->library('zip');
+ $CI->zip->add_data($prefs['filename'], $this->_backup($prefs));
+ return $CI->zip->get_zip();
+ }
+
+ }
+
+
+
+
+
+
+}
+
?> \ No newline at end of file
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-09 16:37:18 +0100