mirror of
https://github.com/claudehohl/Stikked.git
synced 2025-05-07 03:53:42 -05:00
766 lines
18 KiB
PHP
766 lines
18 KiB
PHP
<?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 ExpressionEngine Dev Team
|
|
* @copyright Copyright (c) 2006, EllisLab, Inc.
|
|
* @license http://codeigniter.com/user_guide/license.html
|
|
* @link http://codeigniter.com
|
|
* @since Version 1.0
|
|
* @filesource
|
|
*/
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* oci8 Database Adapter Class
|
|
*
|
|
* Note: _DB is an extender class that the app controller
|
|
* creates dynamically based on whether the active record
|
|
* class is being used or not.
|
|
*
|
|
* @package CodeIgniter
|
|
* @subpackage Drivers
|
|
* @category Database
|
|
* @author ExpressionEngine Dev Team
|
|
* @link http://codeigniter.com/user_guide/database/
|
|
*/
|
|
|
|
/**
|
|
* oci8 Database Adapter Class
|
|
*
|
|
* This is a modification of the DB_driver class to
|
|
* permit access to oracle databases
|
|
*
|
|
* NOTE: this uses the PHP 4 oci methods
|
|
*
|
|
* @author Kelly McArdle
|
|
*
|
|
*/
|
|
|
|
class CI_DB_oci8_driver extends CI_DB {
|
|
|
|
/**
|
|
* The syntax to count rows is slightly different across different
|
|
* database engines, so this string appears in each driver and is
|
|
* used for the count_all() and count_all_results() functions.
|
|
*/
|
|
var $_count_string = "SELECT COUNT(1) AS ";
|
|
var $_random_keyword = ' ASC'; // not currently supported
|
|
|
|
// Set "auto commit" by default
|
|
var $_commit = OCI_COMMIT_ON_SUCCESS;
|
|
|
|
// need to track statement id and cursor id
|
|
var $stmt_id;
|
|
var $curs_id;
|
|
|
|
// if we use a limit, we will add a field that will
|
|
// throw off num_fields later
|
|
var $limit_used;
|
|
|
|
/**
|
|
* Non-persistent database connection
|
|
*
|
|
* @access private called by the base class
|
|
* @return resource
|
|
*/
|
|
function db_connect()
|
|
{
|
|
return @ocilogon($this->username, $this->password, $this->hostname);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Persistent database connection
|
|
*
|
|
* @access private called by the base class
|
|
* @return resource
|
|
*/
|
|
function db_pconnect()
|
|
{
|
|
return @ociplogon($this->username, $this->password, $this->hostname);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Select the database
|
|
*
|
|
* @access private called by the base class
|
|
* @return resource
|
|
*/
|
|
function db_select()
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Set client character set
|
|
*
|
|
* @access public
|
|
* @param string
|
|
* @param string
|
|
* @return resource
|
|
*/
|
|
function db_set_charset($charset, $collation)
|
|
{
|
|
// TODO - add support if needed
|
|
return TRUE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Version number query string
|
|
*
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
function _version()
|
|
{
|
|
return ociserverversion($this->conn_id);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Execute the query
|
|
*
|
|
* @access private called by the base class
|
|
* @param string an SQL query
|
|
* @return resource
|
|
*/
|
|
function _execute($sql)
|
|
{
|
|
// oracle must parse the query before it is run. All of the actions with
|
|
// the query are based on the statement id returned by ociparse
|
|
$this->_set_stmt_id($sql);
|
|
ocisetprefetch($this->stmt_id, 1000);
|
|
return @ociexecute($this->stmt_id, $this->_commit);
|
|
}
|
|
|
|
/**
|
|
* Generate a statement ID
|
|
*
|
|
* @access private
|
|
* @param string an SQL query
|
|
* @return none
|
|
*/
|
|
function _set_stmt_id($sql)
|
|
{
|
|
if ( ! is_resource($this->stmt_id))
|
|
{
|
|
$this->stmt_id = ociparse($this->conn_id, $this->_prep_query($sql));
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Prep the query
|
|
*
|
|
* If needed, each database adapter can prep the query string
|
|
*
|
|
* @access private called by execute()
|
|
* @param string an SQL query
|
|
* @return string
|
|
*/
|
|
function _prep_query($sql)
|
|
{
|
|
return $sql;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* getCursor. Returns a cursor from the datbase
|
|
*
|
|
* @access public
|
|
* @return cursor id
|
|
*/
|
|
function get_cursor()
|
|
{
|
|
$this->curs_id = ocinewcursor($this->conn_id);
|
|
return $this->curs_id;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Stored Procedure. Executes a stored procedure
|
|
*
|
|
* @access public
|
|
* @param package package stored procedure is in
|
|
* @param procedure stored procedure to execute
|
|
* @param params array of parameters
|
|
* @return array
|
|
*
|
|
* params array keys
|
|
*
|
|
* KEY OPTIONAL NOTES
|
|
* name no the name of the parameter should be in :<param_name> format
|
|
* value no the value of the parameter. If this is an OUT or IN OUT parameter,
|
|
* this should be a reference to a variable
|
|
* type yes the type of the parameter
|
|
* length yes the max size of the parameter
|
|
*/
|
|
function stored_procedure($package, $procedure, $params)
|
|
{
|
|
if ($package == '' OR $procedure == '' OR ! is_array($params))
|
|
{
|
|
if ($this->db_debug)
|
|
{
|
|
log_message('error', 'Invalid query: '.$package.'.'.$procedure);
|
|
return $this->display_error('db_invalid_query');
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
// build the query string
|
|
$sql = "begin $package.$procedure(";
|
|
|
|
$have_cursor = FALSE;
|
|
foreach($params as $param)
|
|
{
|
|
$sql .= $param['name'] . ",";
|
|
|
|
if (array_key_exists('type', $param) && ($param['type'] == OCI_B_CURSOR))
|
|
{
|
|
$have_cursor = TRUE;
|
|
}
|
|
}
|
|
$sql = trim($sql, ",") . "); end;";
|
|
|
|
$this->stmt_id = FALSE;
|
|
$this->_set_stmt_id($sql);
|
|
$this->_bind_params($params);
|
|
$this->query($sql, FALSE, $have_cursor);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Bind parameters
|
|
*
|
|
* @access private
|
|
* @return none
|
|
*/
|
|
function _bind_params($params)
|
|
{
|
|
if ( ! is_array($params) OR ! is_resource($this->stmt_id))
|
|
{
|
|
return;
|
|
}
|
|
|
|
foreach ($params as $param)
|
|
{
|
|
foreach (array('name', 'value', 'type', 'length') as $val)
|
|
{
|
|
if ( ! isset($param[$val]))
|
|
{
|
|
$param[$val] = '';
|
|
}
|
|
}
|
|
|
|
ocibindbyname($this->stmt_id, $param['name'], $param['value'], $param['length'], $param['type']);
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Begin Transaction
|
|
*
|
|
* @access public
|
|
* @return bool
|
|
*/
|
|
function trans_begin($test_mode = FALSE)
|
|
{
|
|
if ( ! $this->trans_enabled)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
// When transactions are nested we only begin/commit/rollback the outermost ones
|
|
if ($this->_trans_depth > 0)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
// Reset the transaction failure flag.
|
|
// If the $test_mode flag is set to TRUE transactions will be rolled back
|
|
// even if the queries produce a successful result.
|
|
$this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE;
|
|
|
|
$this->_commit = OCI_DEFAULT;
|
|
return TRUE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Commit Transaction
|
|
*
|
|
* @access public
|
|
* @return bool
|
|
*/
|
|
function trans_commit()
|
|
{
|
|
if ( ! $this->trans_enabled)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
// When transactions are nested we only begin/commit/rollback the outermost ones
|
|
if ($this->_trans_depth > 0)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
$ret = OCIcommit($this->conn_id);
|
|
$this->_commit = OCI_COMMIT_ON_SUCCESS;
|
|
return $ret;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Rollback Transaction
|
|
*
|
|
* @access public
|
|
* @return bool
|
|
*/
|
|
function trans_rollback()
|
|
{
|
|
if ( ! $this->trans_enabled)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
// When transactions are nested we only begin/commit/rollback the outermost ones
|
|
if ($this->_trans_depth > 0)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
$ret = OCIrollback($this->conn_id);
|
|
$this->_commit = OCI_COMMIT_ON_SUCCESS;
|
|
return $ret;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Escape String
|
|
*
|
|
* @access public
|
|
* @param string
|
|
* @return string
|
|
*/
|
|
function escape_str($str)
|
|
{
|
|
return $str;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Affected Rows
|
|
*
|
|
* @access public
|
|
* @return integer
|
|
*/
|
|
function affected_rows()
|
|
{
|
|
return @ocirowcount($this->stmt_id);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Insert ID
|
|
*
|
|
* @access public
|
|
* @return integer
|
|
*/
|
|
function insert_id()
|
|
{
|
|
// not supported in oracle
|
|
return $this->display_error('db_unsupported_function');
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* "Count All" query
|
|
*
|
|
* Generates a platform-specific query string that counts all records in
|
|
* the specified database
|
|
*
|
|
* @access public
|
|
* @param string
|
|
* @return string
|
|
*/
|
|
function count_all($table = '')
|
|
{
|
|
if ($table == '')
|
|
return '0';
|
|
|
|
$query = $this->query($this->_count_string . $this->_protect_identifiers('numrows'). " FROM " . $this->_protect_identifiers($this->dbprefix.$table));
|
|
|
|
if ($query == FALSE)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
$row = $query->row();
|
|
return $row->NUMROWS;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Show table query
|
|
*
|
|
* Generates a platform-specific query string so that the table names can be fetched
|
|
*
|
|
* @access private
|
|
* @param boolean
|
|
* @return string
|
|
*/
|
|
function _list_tables($prefix_limit = FALSE)
|
|
{
|
|
$sql = "SELECT TABLE_NAME FROM ALL_TABLES";
|
|
|
|
if ($prefix_limit !== FALSE AND $this->dbprefix != '')
|
|
{
|
|
$sql .= " WHERE TABLE_NAME LIKE '".$this->dbprefix."%'";
|
|
}
|
|
|
|
return $sql;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Show column query
|
|
*
|
|
* Generates a platform-specific query string so that the column names can be fetched
|
|
*
|
|
* @access public
|
|
* @param string the table name
|
|
* @return string
|
|
*/
|
|
function _list_columns($table = '')
|
|
{
|
|
return "SELECT COLUMN_NAME FROM all_tab_columns WHERE table_name = '$table'";
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Field data query
|
|
*
|
|
* Generates a platform-specific query so that the column data can be retrieved
|
|
*
|
|
* @access public
|
|
* @param string the table name
|
|
* @return object
|
|
*/
|
|
function _field_data($table)
|
|
{
|
|
return "SELECT * FROM ".$this->_escape_table($table)." where rownum = 1";
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* The error message string
|
|
*
|
|
* @access private
|
|
* @return string
|
|
*/
|
|
function _error_message()
|
|
{
|
|
$error = ocierror($this->conn_id);
|
|
return $error['message'];
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* The error message number
|
|
*
|
|
* @access private
|
|
* @return integer
|
|
*/
|
|
function _error_number()
|
|
{
|
|
$error = ocierror($this->conn_id);
|
|
return $error['code'];
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Escape Table Name
|
|
*
|
|
* This function adds backticks if the table name has a period
|
|
* in it. Some DBs will get cranky unless periods are escaped
|
|
*
|
|
* @access private
|
|
* @param string the table name
|
|
* @return string
|
|
*/
|
|
function _escape_table($table)
|
|
{
|
|
if (strpos($table, '.') !== FALSE)
|
|
{
|
|
$table = '"' . str_replace('.', '"."', $table) . '"';
|
|
}
|
|
|
|
return $table;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Protect Identifiers
|
|
*
|
|
* This function adds backticks if appropriate based on db type
|
|
*
|
|
* @access private
|
|
* @param mixed the item to escape
|
|
* @param boolean only affect the first word
|
|
* @return mixed the item with backticks
|
|
*/
|
|
function _protect_identifiers($item, $first_word_only = FALSE)
|
|
{
|
|
if (is_array($item))
|
|
{
|
|
$escaped_array = array();
|
|
|
|
foreach($item as $k=>$v)
|
|
{
|
|
$escaped_array[$this->_protect_identifiers($k)] = $this->_protect_identifiers($v, $first_word_only);
|
|
}
|
|
|
|
return $escaped_array;
|
|
}
|
|
|
|
// This function may get "item1 item2" as a string, and so
|
|
// we may need ""item1" "item2"" and not ""item1 item2""
|
|
if (ctype_alnum($item) === FALSE)
|
|
{
|
|
if (strpos($item, '.') !== FALSE)
|
|
{
|
|
$aliased_tables = implode(".",$this->ar_aliased_tables).'.';
|
|
$table_name = substr($item, 0, strpos($item, '.')+1);
|
|
$item = (strpos($aliased_tables, $table_name) !== FALSE) ? $item = $item : $this->dbprefix.$item;
|
|
}
|
|
|
|
// This function may get "field >= 1", and need it to return ""field" >= 1"
|
|
$lbound = ($first_word_only === TRUE) ? '' : '|\s|\(';
|
|
|
|
$item = preg_replace('/(^'.$lbound.')([\w\d\-\_]+?)(\s|\)|$)/iS', '$1"$2"$3', $item);
|
|
}
|
|
else
|
|
{
|
|
return "\"{$item}\"";
|
|
}
|
|
|
|
$exceptions = array('AS', '/', '-', '%', '+', '*', 'OR', 'IS');
|
|
|
|
foreach ($exceptions as $exception)
|
|
{
|
|
|
|
if (stristr($item, " \"{$exception}\" ") !== FALSE)
|
|
{
|
|
$item = preg_replace('/ "('.preg_quote($exception).')" /i', ' $1 ', $item);
|
|
}
|
|
}
|
|
return $item;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* From Tables
|
|
*
|
|
* This function implicitly groups FROM tables so there is no confusion
|
|
* about operator precedence in harmony with SQL standards
|
|
*
|
|
* @access public
|
|
* @param type
|
|
* @return type
|
|
*/
|
|
function _from_tables($tables)
|
|
{
|
|
if ( ! is_array($tables))
|
|
{
|
|
$tables = array($tables);
|
|
}
|
|
|
|
return implode(', ', $tables);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Insert statement
|
|
*
|
|
* Generates a platform-specific insert string from the supplied data
|
|
*
|
|
* @access public
|
|
* @param string the table name
|
|
* @param array the insert keys
|
|
* @param array the insert values
|
|
* @return string
|
|
*/
|
|
function _insert($table, $keys, $values)
|
|
{
|
|
return "INSERT INTO ".$this->_escape_table($table)." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Update statement
|
|
*
|
|
* Generates a platform-specific update string from the supplied data
|
|
*
|
|
* @access public
|
|
* @param string the table name
|
|
* @param array the update data
|
|
* @param array the where clause
|
|
* @param array the orderby clause
|
|
* @param array the limit clause
|
|
* @return string
|
|
*/
|
|
function _update($table, $values, $where, $orderby = array(), $limit = FALSE)
|
|
{
|
|
foreach($values as $key => $val)
|
|
{
|
|
$valstr[] = $key." = ".$val;
|
|
}
|
|
|
|
$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
|
|
|
|
$orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';
|
|
|
|
$sql = "UPDATE ".$this->_escape_table($table)." SET ".implode(', ', $valstr);
|
|
$sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';
|
|
$sql .= $orderby.$limit;
|
|
|
|
return $sql;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Truncate statement
|
|
*
|
|
* Generates a platform-specific truncate string from the supplied data
|
|
* If the database does not support the truncate() command
|
|
* This function maps to "DELETE FROM table"
|
|
*
|
|
* @access public
|
|
* @param string the table name
|
|
* @return string
|
|
*/
|
|
function _truncate($table)
|
|
{
|
|
return "TRUNCATE TABLE ".$this->_escape_table($table);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Delete statement
|
|
*
|
|
* Generates a platform-specific delete string from the supplied data
|
|
*
|
|
* @access public
|
|
* @param string the table name
|
|
* @param array the where clause
|
|
* @param string the limit clause
|
|
* @return string
|
|
*/
|
|
function _delete($table, $where = array(), $like = array(), $limit = FALSE)
|
|
{
|
|
$conditions = '';
|
|
|
|
if (count($where) > 0 OR count($like) > 0)
|
|
{
|
|
$conditions = "\nWHERE ";
|
|
$conditions .= implode("\n", $this->ar_where);
|
|
|
|
if (count($where) > 0 && count($like) > 0)
|
|
{
|
|
$conditions .= " AND ";
|
|
}
|
|
$conditions .= implode("\n", $like);
|
|
}
|
|
|
|
$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
|
|
|
|
return "DELETE FROM ".$table.$conditions.$limit;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Limit string
|
|
*
|
|
* Generates a platform-specific LIMIT clause
|
|
*
|
|
* @access public
|
|
* @param string the sql query string
|
|
* @param integer the number of rows to limit the query to
|
|
* @param integer the offset value
|
|
* @return string
|
|
*/
|
|
function _limit($sql, $limit, $offset)
|
|
{
|
|
$limit = $offset + $limit;
|
|
$newsql = "SELECT * FROM (select inner_query.*, rownum rnum FROM ($sql) inner_query WHERE rownum < $limit)";
|
|
|
|
if ($offset != 0)
|
|
{
|
|
$newsql .= " WHERE rnum >= $offset";
|
|
}
|
|
|
|
// remember that we used limits
|
|
$this->limit_used = TRUE;
|
|
|
|
return $newsql;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Close DB Connection
|
|
*
|
|
* @access public
|
|
* @param resource
|
|
* @return void
|
|
*/
|
|
function _close($conn_id)
|
|
{
|
|
@ocilogoff($conn_id);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* End of file oci8_driver.php */
|
|
/* Location: ./system/database/drivers/oci8/oci8_driver.php */ |