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-rw-r--r--system/drivers/DB_driver.php1050
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diff --git a/system/drivers/DB_driver.php b/system/drivers/DB_driver.php
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index 48f7c4a9a..000000000
--- a/system/drivers/DB_driver.php
+++ /dev/null
@@ -1,1050 +0,0 @@
-<?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 Driver Class
- *
- * This is the platform-independent base DB implementation class.
- * This class will not be called directly. Rather, the adapter
- * class for the specific database will extend and instantiate it.
- *
- * @package CodeIgniter
- * @subpackage Drivers
- * @category Database
- * @author Rick Ellis
- * @link http://www.codeigniter.com/user_guide/database/
- */
-class CI_DB_driver {
-
- var $username;
- var $password;
- var $hostname;
- var $database;
- var $dbdriver = 'mysql';
- var $dbprefix = '';
- var $port = '';
- var $pconnect = FALSE;
- var $conn_id = FALSE;
- var $result_id = FALSE;
- var $db_debug = FALSE;
- var $benchmark = 0;
- var $query_count = 0;
- var $bind_marker = '?';
- var $queries = array();
- var $trans_enabled = TRUE;
- var $_trans_depth = 0;
- var $_trans_failure = FALSE; // Used with transactions to determine if a rollback should occur
-
- // These are use with Oracle
- var $stmt_id;
- var $curs_id;
- var $limit_used;
-
-
- /**
- * Constructor. Accepts one parameter containing the database
- * connection settings.
- *
- * Database settings can be passed as discreet
- * parameters or as a data source name in the first
- * parameter. DSNs must have this prototype:
- * $dsn = 'driver://username:password@hostname/database';
- *
- * @param mixed. Can be an array or a DSN string
- */
- function CI_DB_driver($params)
- {
- $this->initialize($params);
- log_message('debug', 'Database Driver Class Initialized');
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Initialize Database Settings
- *
- * @access private Called by the constructor
- * @param mixed
- * @return void
- */
- function initialize($params = '')
- {
- if (is_array($params))
- {
- foreach (array('hostname' => '', 'username' => '', 'password' => '', 'database' => '', 'dbdriver' => 'mysql', 'dbprefix' => '', 'port' => '', 'pconnect' => FALSE, 'db_debug' => FALSE) as $key => $val)
- {
- $this->$key = ( ! isset($params[$key])) ? $val : $params[$key];
- }
- }
- elseif (strpos($params, '://'))
- {
- if (FALSE === ($dsn = @parse_url($params)))
- {
- log_message('error', 'Invalid DB Connection String');
-
- if ($this->db_debug)
- {
- return $this->display_error('db_invalid_connection_str');
- }
- return FALSE;
- }
-
- $this->hostname = ( ! isset($dsn['host'])) ? '' : rawurldecode($dsn['host']);
- $this->username = ( ! isset($dsn['user'])) ? '' : rawurldecode($dsn['user']);
- $this->password = ( ! isset($dsn['pass'])) ? '' : rawurldecode($dsn['pass']);
- $this->database = ( ! isset($dsn['path'])) ? '' : rawurldecode(substr($dsn['path'], 1));
- }
-
- if ($this->pconnect == FALSE)
- {
- $this->conn_id = $this->db_connect();
- }
- else
- {
- $this->conn_id = $this->db_pconnect();
- }
-
- if ( ! $this->conn_id)
- {
- log_message('error', 'Unable to connect to the database');
-
- if ($this->db_debug)
- {
- $this->display_error('db_unable_to_connect');
- }
- }
- else
- {
- if ( ! $this->db_select())
- {
- log_message('error', 'Unable to select database: '.$this->database);
-
- if ($this->db_debug)
- {
- $this->display_error('db_unable_to_select', $this->database);
- }
- }
- }
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Database Version Number. Returns a string containing the
- * version of the database being used
- *
- * @access public
- * @return string
- */
- function version()
- {
- if (FALSE === ($sql = $this->_version()))
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_unsupported_function');
- }
- return FALSE;
- }
-
- if ($this->dbdriver == 'oci8')
- {
- return $sql;
- }
-
- $query = $this->query($sql);
- $row = $query->row();
- return $row->ver;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Execute the query
- *
- * Accepts an SQL string as input and returns a result object upon
- * successful execution of a "read" type query. Returns boolean TRUE
- * upon successful execution of a "write" type query. Returns boolean
- * FALSE upon failure, and if the $db_debug variable is set to TRUE
- * will raise an error.
- *
- * @access public
- * @param string An SQL query string
- * @param array An array of binding data
- * @return mixed
- */
- function query($sql, $binds = FALSE, $return_object = TRUE)
- {
- if ($sql == '')
- {
- if ($this->db_debug)
- {
- log_message('error', 'Invalid query: '.$sql);
- return $this->display_error('db_invalid_query');
- }
- return FALSE;
- }
-
- // Compile binds if needed
- if ($binds !== FALSE)
- {
- $sql = $this->compile_binds($sql, $binds);
- }
-
- // Save the query for debugging
- $this->queries[] = $sql;
-
- // Start the Query Timer
- $time_start = list($sm, $ss) = explode(' ', microtime());
-
- // Run the Query
- if (FALSE === ($this->result_id = $this->simple_query($sql)))
- {
- // This will trigger a rollback if transactions are being used
- $this->_trans_failure = TRUE;
-
- if ($this->db_debug)
- {
- log_message('error', 'Query error: '.$this->error_message());
- return $this->display_error(
- array(
- 'Error Number: '.$this->error_number(),
- $this->error_message(),
- $sql
- )
- );
- }
-
- return FALSE;
- }
-
- // Stop and aggregate the query time results
- $time_end = list($em, $es) = explode(' ', microtime());
- $this->benchmark += ($em + $es) - ($sm + $ss);
-
- // Increment the query counter
- $this->query_count++;
-
- // Was the query a "write" type?
- // If so we'll simply return true
- if ($this->is_write_type($sql) === TRUE)
- {
- return TRUE;
- }
-
- // Return TRUE if we don't need to create a result object
- // Currently only the Oracle driver uses this when stored
- // procedures are used
- if ($return_object !== TRUE)
- {
- return TRUE;
- }
-
- // Instantiate and return the DB result object
- $result = 'CI_DB_'.$this->dbdriver.'_result';
-
- $RES = new $result();
- $RES->conn_id = $this->conn_id;
- $RES->db_debug = $this->db_debug;
- $RES->result_id = $this->result_id;
-
- if ($this->dbdriver == 'oci8')
- {
- $RES->stmt_id = $this->stmt_id;
- $RES->curs_id = NULL;
- $RES->limit_used = $this->limit_used;
- }
-
- return $RES;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Simple Query
- * This is a simiplified version of the query() function. Internally
- * we only use it when running transaction commands since they do
- * not require all the features of the main query() function.
- *
- * @access public
- * @param string the sql query
- * @return mixed
- */
- function simple_query($sql)
- {
- if ( ! $this->conn_id)
- {
- $this->initialize();
- }
-
- return $this->_execute($sql, $this->conn_id);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Disable Transactions
- * This permits transactions to be disabled at run-time.
- *
- * @access public
- * @return void
- */
- function trans_off()
- {
- $this->trans_enabled = FALSE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Start Transaction
- *
- * @access public
- * @return void
- */
- function trans_start($test_mode = FALSE)
- {
- if ( ! $this->trans_enabled)
- {
- return FALSE;
- }
-
- // When transactions are nested we only begin/commit/rollback the outermost ones
- if ($this->_trans_depth > 0)
- {
- $this->_trans_depth += 1;
- return;
- }
-
- $this->trans_begin($test_mode);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Complete Transaction
- *
- * @access public
- * @return bool
- */
- function trans_complete()
- {
- if ( ! $this->trans_enabled)
- {
- return FALSE;
- }
-
- // When transactions are nested we only begin/commit/rollback the outermost ones
- if ($this->_trans_depth > 1)
- {
- $this->_trans_depth -= 1;
- return TRUE;
- }
-
- // The query() function will set this flag to TRUE in the event that a query failed
- if ($this->_trans_failure === TRUE)
- {
- $this->trans_rollback();
-
- if ($this->db_debug)
- {
- return $this->display_error('db_transaction_failure');
- }
- return FALSE;
- }
-
- $this->trans_commit();
- return TRUE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Lets you retrieve the transaction flag to determine if it has failed
- *
- * @access public
- * @return bool
- */
- function trans_status()
- {
- return $this->_trans_failure;
- }
-
-
- // --------------------------------------------------------------------
-
- /**
- * Enables a native PHP function to be run, using a platform agnostic wrapper.
- *
- * @access public
- * @param string the function name
- * @param mixed any parameters needed by the function
- * @return mixed
- */
- function call_function($function)
- {
- $driver = ($this->dbdriver == 'postgre') ? 'pg_' : $this->dbdriver.'_';
-
- if (FALSE === strpos($driver, $function))
- {
- $function = $driver.$function;
- }
-
- if ( ! function_exists($function))
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_unsupported_function');
- }
- return FALSE;
- }
- else
- {
- $args = (func_num_args() > 1) ? array_shift(func_get_args()) : null;
-
- return call_user_func_array($function, $args);
- }
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Determines if a query is a "write" type.
- *
- * @access public
- * @param string An SQL query string
- * @return boolean
- */
- function is_write_type($sql)
- {
- if ( ! preg_match('/^\s*"?(INSERT|UPDATE|DELETE|REPLACE|CREATE|DROP|LOAD DATA|COPY|ALTER|GRANT|REVOKE|LOCK|UNLOCK)\s+/i', $sql))
- {
- return FALSE;
- }
- return TRUE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Calculate the aggregate query elapsed time
- *
- * @access public
- * @param intiger The number of decimal places
- * @return integer
- */
- function elapsed_time($decimals = 6)
- {
- return number_format($this->benchmark, $decimals);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns the total number of queries
- *
- * @access public
- * @return integer
- */
- function total_queries()
- {
- return $this->query_count;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns the last query that was executed
- *
- * @access public
- * @return void
- */
- function last_query()
- {
- return end($this->queries);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * "Smart" Escape String
- *
- * Escapes data based on type
- * Sets boolean and null types
- *
- * @access public
- * @param string
- * @return integer
- */
- function escape($str)
- {
- switch (gettype($str))
- {
- case 'string' : $str = "'".$this->escape_str($str)."'";
- break;
- case 'boolean' : $str = ($str === FALSE) ? 0 : 1;
- break;
- default : $str = ($str === NULL) ? 'NULL' : $str;
- break;
- }
-
- return $str;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns an array of table names
- *
- * @access public
- * @return array
- */
- function tables()
- {
- if (FALSE === ($sql = $this->_show_tables()))
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_unsupported_function');
- }
- return FALSE;
- }
-
- $retval = array();
- $query = $this->query($sql);
-
- if ($query->num_rows() > 0)
- {
- foreach($query->result_array() as $row)
- {
- if (isset($row['TABLE_NAME']))
- {
- $retval[] = $row['TABLE_NAME'];
- }
- else
- {
- $retval[] = array_shift($row);
- }
- }
- }
-
- return $retval;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Determine if a particular table exists
- * @access public
- * @return boolean
- */
- function table_exists($table_name)
- {
- return ( ! in_array($this->dbprefix.$table_name, $this->tables())) ? FALSE : TRUE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Fetch MySQL Field Names
- *
- * @access public
- * @param string the table name
- * @return array
- */
- function field_names($table = '')
- {
- if ($table == '')
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_field_param_missing');
- }
- return FALSE;
- }
-
- if (FALSE === ($sql = $this->_show_columns($this->dbprefix.$table)))
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_unsupported_function');
- }
- return FALSE;
- }
-
- $query = $this->query($sql);
-
- $retval = array();
- foreach($query->result_array() as $row)
- {
- if (isset($row['COLUMN_NAME']))
- {
- $retval[] = $row['COLUMN_NAME'];
- }
- else
- {
- $retval[] = current($row);
- }
- }
-
- return $retval;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns an object with field data
- *
- * @access public
- * @param string the table name
- * @return object
- */
- function field_data($table = '')
- {
- if ($table == '')
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_field_param_missing');
- }
- return FALSE;
- }
-
- return $this->_field_data($this->dbprefix.$table);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Primary
- *
- * Retrieves the primary key. It assumes that the row in the first
- * position is the primary key
- *
- * @access public
- * @param string the table name
- * @return string
- */
- function primary($table = '')
- {
- $fields = $this->field_names($table);
-
- if ( ! is_array($fields))
- {
- return FALSE;
- }
-
- return current($fields);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Compile Bindings
- *
- * @access public
- * @param string the sql statement
- * @param array an array of bind data
- * @return string
- */
- function compile_binds($sql, $binds)
- {
- if (FALSE === strpos($sql, $this->bind_marker))
- {
- return $sql;
- }
-
- if ( ! is_array($binds))
- {
- $binds = array($binds);
- }
-
- foreach ($binds as $val)
- {
- $val = $this->escape($val);
-
- // Just in case the replacement string contains the bind
- // character we'll temporarily replace it with a marker
- $val = str_replace($this->bind_marker, '{%bind_marker%}', $val);
- $sql = preg_replace("#".preg_quote($this->bind_marker, '#')."#", str_replace('$', '\$', $val), $sql, 1);
- }
-
- return str_replace('{%bind_marker%}', $this->bind_marker, $sql);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Generate an insert string
- *
- * @access public
- * @param string the table upon which the query will be performed
- * @param array an associative array data of key/values
- * @return string
- */
- function insert_string($table, $data)
- {
- $fields = array();
- $values = array();
-
- foreach($data as $key => $val)
- {
- $fields[] = $key;
- $values[] = $this->escape($val);
- }
-
- return $this->_insert($this->dbprefix.$table, $fields, $values);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Generate an update string
- *
- * @access public
- * @param string the table upon which the query will be performed
- * @param array an associative array data of key/values
- * @param mixed the "where" statement
- * @return string
- */
- function update_string($table, $data, $where)
- {
- if ($where == '')
- return false;
-
- $fields = array();
- foreach($data as $key => $val)
- {
- $fields[$key] = $this->escape($val);
- }
-
- if ( ! is_array($where))
- {
- $dest = array($where);
- }
- else
- {
- $dest = array();
- foreach ($where as $key => $val)
- {
- $prefix = (count($dest) == 0) ? '' : ' AND ';
-
- if ($val != '')
- {
- if ( ! $this->_has_operator($key))
- {
- $key .= ' =';
- }
-
- $val = ' '.$this->escape($val);
- }
-
- $dest[] = $prefix.$key.$val;
- }
- }
-
- return $this->_update($this->dbprefix.$table, $fields, $dest);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Close DB Connection
- *
- * @access public
- * @return void
- */
- function close()
- {
- if (is_resource($this->conn_id))
- {
- $this->destroy($this->conn_id);
- }
- $this->conn_id = FALSE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Display an error message
- *
- * @access public
- * @param string the error message
- * @param string any "swap" values
- * @param boolean whether to localize the message
- * @return string sends the application/errror_db.php template
- */
- function display_error($error = '', $swap = '', $native = FALSE)
- {
- $LANG = new CI_Language();
- $LANG->load('db');
-
- $heading = 'MySQL Error';
-
- if ($native == TRUE)
- {
- $message = $error;
- }
- else
- {
- $message = ( ! is_array($error)) ? array(str_replace('%s', $swap, $LANG->line($error))) : $error;
- }
-
- if ( ! class_exists('CI_Exceptions'))
- {
- include_once(BASEPATH.'libraries/Exceptions'.EXT);
- }
-
- $error = new CI_Exceptions();
- echo $error->show_error('An Error Was Encountered', $message, 'error_db');
- exit;
-
- }
-
-}
-
-
-/**
- * Database Result Class
- *
- * This is the platform-independent result class.
- * This class will not be called directly. Rather, the adapter
- * class for the specific database will extend and instantiate it.
- *
- * @category Database
- * @author Rick Ellis
- * @link http://www.codeigniter.com/user_guide/database/
- */
-class CI_DB_result {
-
- var $conn_id = FALSE;
- var $result_id = FALSE;
- var $db_debug = FALSE;
- var $result_array = array();
- var $result_object = array();
- var $current_row = 0;
-
- /**
- * Query result. Acts as a wrapper function for the following functions.
- *
- * @access public
- * @param string can be "object" or "array"
- * @return mixed either a result object or array
- */
- function result($type = 'object')
- {
- return ($type == 'object') ? $this->result_object() : $this->result_array();
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Query result. "object" version.
- *
- * @access public
- * @return object
- */
- function result_object()
- {
- if (count($this->result_object) > 0)
- {
- return $this->result_object;
- }
-
- while ($row = $this->_fetch_object())
- {
- $this->result_object[] = $row;
- }
-
- if (count($this->result_object) == 0)
- {
- return FALSE;
- }
-
- return $this->result_object;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Query result. "array" version.
- *
- * @access public
- * @return array
- */
- function result_array()
- {
- if (count($this->result_array) > 0)
- {
- return $this->result_array;
- }
-
- while ($row = $this->_fetch_assoc())
- {
- $this->result_array[] = $row;
- }
-
- if (count($this->result_array) == 0)
- {
- return FALSE;
- }
-
- return $this->result_array;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Query result. Acts as a wrapper function for the following functions.
- *
- * @access public
- * @param string can be "object" or "array"
- * @return mixed either a result object or array
- */
- function row($n = 0, $type = 'object')
- {
- return ($type == 'object') ? $this->row_object($n) : $this->row_array($n);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns a single result row - object version
- *
- * @access public
- * @return object
- */
- function row_object($n = 0)
- {
- if (FALSE === ($result = $this->result_object()))
- {
- return FALSE;
- }
-
- if ($n != $this->current_row AND isset($result[$n]))
- {
- $this->current_row = $n;
- }
-
- return $result[$this->current_row];
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns a single result row - array version
- *
- * @access public
- * @return array
- */
- function row_array($n = 0)
- {
- if (FALSE === ($result = $this->result_array()))
- {
- return FALSE;
- }
-
- if ($n != $this->current_row AND isset($result[$n]))
- {
- $this->current_row = $n;
- }
-
- return $result[$this->current_row];
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns the "next" row
- *
- * @access public
- * @return object
- */
- function next_row($type = 'object')
- {
- if (FALSE === ($result = $this->result($type)))
- {
- return FALSE;
- }
-
- if (isset($result[$this->current_row + 1]))
- {
- ++$this->current_row;
- }
-
- return $result[$this->current_row];
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns the "previous" row
- *
- * @access public
- * @return object
- */
- function previous_row($type = 'object')
- {
- if (FALSE === ($result = $this->result($type)))
- {
- return FALSE;
- }
-
- if (isset($result[$this->current_row - 1]))
- {
- --$this->current_row;
- }
- return $result[$this->current_row];
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns the "first" row
- *
- * @access public
- * @return object
- */
- function first_row($type = 'object')
- {
- if (FALSE === ($result = $this->result($type)))
- {
- return FALSE;
- }
- return $result[0];
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Returns the "last" row
- *
- * @access public
- * @return object
- */
- function last_row($type = 'object')
- {
- if (FALSE === ($result = $this->result($type)))
- {
- return FALSE;
- }
- return $result[count($result) -1];
- }
-
-}
-
-?> \ No newline at end of file
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-06 16:44:28 +0100