update pMachine to EllisLab

update copyright year
update Code Igniter to CodeIgniter

1 files changed, 604 insertions, 604 deletions

diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index ff301a57d..291e168eb 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -1,605 +1,605 @@
-<?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
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * 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	  Rick Ellis
- * @link		http://www.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 {
-
-	// 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, $this->hostname);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Select the database
-	 *
-	 * @access  private called by the base class
-	 * @return  resource
-	 */
-	function db_select()
-	{
-		return TRUE;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Version number query string
-	 *
-	 * @access  public
-	 * @return  string
-	 */
-	function _version()
-	{
-		return ociserverversion($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 0;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * "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 = $this->query("SELECT COUNT(1) AS numrows FROM ".$table);
-
-		if ($query == FALSE)
-			{
-			return 0;
-			}
-
-		$row = $query->row();
-		return $row->NUMROWS;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Show table query
-	 *
-	 * Generates a platform-specific query string so that the table names can be fetched
-	 *
-	 * @access  private
-	 * @return  string
-	 */
-	function _list_tables()
-	{
-		return "SELECT TABLE_NAME FROM ALL_TABLES";
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Show column query
-	 *
-	 * Generates a platform-specific query string so that the column names can be fetched
-	 *
-	 * @access  public
-	 * @param   string  the table name
-	 * @return  string
-	 */
-	function _list_columns($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 (stristr($table, '.'))
-		{
-			$table = preg_replace("/\./", "`.`", $table);
-		}
-
-		return $table;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Insert statement
-	 *
-	 * Generates a platform-specific insert string from the supplied data
-	 *
-	 * @access  public
-	 * @param   string  the table name
-	 * @param   array   the insert keys
-	 * @param   array   the insert values
-	 * @return  string
-	 */
-	function _insert($table, $keys, $values)
-	{
-	return "INSERT INTO ".$this->_escape_table($table)." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Update statement
-	 *
-	 * Generates a platform-specific update string from the supplied data
-	 *
-	 * @access  public
-	 * @param   string  the table name
-	 * @param   array   the update data
-	 * @param   array   the where clause
-	 * @return  string
-	 */
-	function _update($table, $values, $where)
-	{
-		foreach($values as $key => $val)
-		{
-			$valstr[] = $key." = ".$val;
-		}
-
-		return "UPDATE ".$this->_escape_table($table)." SET ".implode(', ', $valstr)." WHERE ".implode(" ", $where);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Delete statement
-	 *
-	 * Generates a platform-specific delete string from the supplied data
-	 *
-	 * @access  public
-	 * @param   string  the table name
-	 * @param   array   the where clause
-	 * @return  string
-	 */
-	function _delete($table, $where)
-	{
-		return "DELETE FROM ".$this->_escape_table($table)." WHERE ".implode(" ", $where);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Limit string
-	 *
-	 * Generates a platform-specific LIMIT clause
-	 *
-	 * @access  public
-	 * @param   string  the sql query string
-	 * @param   integer the number of rows to limit the query to
-	 * @param   integer the offset value
-	 * @return  string
-	 */
-	function _limit($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);
-	}
-
-
-}
-
-
+<?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

+ */

+

+// ------------------------------------------------------------------------

+

+/**

+ * 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	  Rick Ellis

+ * @link		http://www.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 {

+

+	// 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;

+	}

+

+	// --------------------------------------------------------------------

+

+	/**

+	 * 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 0;

+	}

+

+	// --------------------------------------------------------------------

+

+	/**

+	 * "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 = $this->query("SELECT COUNT(1) AS numrows FROM ".$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

+	 * @return  string

+	 */

+	function _list_tables()

+	{

+		return "SELECT TABLE_NAME FROM ALL_TABLES";

+	}

+

+	// --------------------------------------------------------------------

+

+	/**

+	 * 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 (stristr($table, '.'))

+		{

+			$table = preg_replace("/\./", "`.`", $table);

+		}

+

+		return $table;

+	}

+

+	// --------------------------------------------------------------------

+

+	/**

+	 * 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

+	 * @return  string

+	 */

+	function _update($table, $values, $where)

+	{

+		foreach($values as $key => $val)

+		{

+			$valstr[] = $key." = ".$val;

+		}

+

+		return "UPDATE ".$this->_escape_table($table)." SET ".implode(', ', $valstr)." WHERE ".implode(" ", $where);

+	}

+

+	// --------------------------------------------------------------------

+

+	/**

+	 * Delete statement

+	 *

+	 * Generates a platform-specific delete string from the supplied data

+	 *

+	 * @access  public

+	 * @param   string  the table name

+	 * @param   array   the where clause

+	 * @return  string

+	 */

+	function _delete($table, $where)

+	{

+		return "DELETE FROM ".$this->_escape_table($table)." WHERE ".implode(" ", $where);

+	}

+

+	// --------------------------------------------------------------------

+

+	/**

+	 * 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);

+	}

+

+

+}

+

+

 ?>
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