summaryrefslogtreecommitdiffstats
path: root/system/database/drivers/pdo
diff options
context:
space:
mode:
Diffstat (limited to 'system/database/drivers/pdo')
-rw-r--r--system/database/drivers/pdo/pdo_driver.php478
-rw-r--r--system/database/drivers/pdo/pdo_forge.php105
-rw-r--r--system/database/drivers/pdo/pdo_result.php112
-rw-r--r--system/database/drivers/pdo/pdo_utility.php73
4 files changed, 202 insertions, 566 deletions
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index 83a9c31ca..f4c3a7438 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -1,13 +1,13 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
*
* NOTICE OF LICENSE
- *
+ *
* Licensed under the Open Software License version 3.0
- *
+ *
* This source file is subject to the Open Software License (OSL 3.0) that is
* bundled with this package in the files license.txt / license.rst. It is
* also available through the world wide web at this URL:
@@ -25,8 +25,6 @@
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* PDO Database Adapter Class
*
@@ -42,28 +40,28 @@
*/
class CI_DB_pdo_driver extends CI_DB {
- var $dbdriver = 'pdo';
+ public $dbdriver = 'pdo';
// the character used to excape - not necessary for PDO
- var $_escape_char = '';
+ protected $_escape_char = '';
// clause and character used for LIKE escape sequences
- var $_like_escape_str;
- var $_like_escape_chr;
+ protected $_like_escape_str = " ESCAPE '%s' ";
+ protected $_like_escape_chr = '!';
/**
* 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(*) AS ";
- var $_random_keyword;
+ protected $_count_string = 'SELECT COUNT(*) AS ';
+ protected $_random_keyword;
// need to track the pdo driver and options
- var $pdodriver;
- var $options = array();
+ public $pdodriver;
+ public $options = array();
- function __construct($params)
+ public function __construct($params)
{
parent::__construct($params);
@@ -83,32 +81,30 @@ class CI_DB_pdo_driver extends CI_DB {
// this one depends on the driver being used
if ($this->pdodriver == 'mysql')
{
+ $this->_escape_char = '`';
$this->_like_escape_str = '';
$this->_like_escape_chr = '';
}
elseif ($this->pdodriver == 'odbc')
{
$this->_like_escape_str = " {escape '%s'} ";
- $this->_like_escape_chr = '!';
}
- else
+ elseif ( ! in_array($this->pdodriver, array('sqlsrv', 'mssql', 'dblib', 'sybase')))
{
- $this->_like_escape_str = " ESCAPE '%s' ";
- $this->_like_escape_chr = '!';
+ $this->_escape_char = '"';
}
-
- $this->trans_enabled = FALSE;
+
+ $this->trans_enabled = FALSE;
$this->_random_keyword = ' RND('.time().')'; // database specific random keyword
}
/**
* Connection String
*
- * @access private
* @param array
* @return void
*/
- function _connect_string($params)
+ protected function _connect_string($params)
{
if (strpos($this->hostname, ':'))
{
@@ -138,7 +134,7 @@ class CI_DB_pdo_driver extends CI_DB {
$this->dsn = $this->pdodriver.':';
// Add hostname to the DSN for databases that need it
- if ( ! empty($this->hostname)
+ if ( ! empty($this->hostname)
&& strpos($this->hostname, ':') === FALSE
&& in_array($this->pdodriver, array('informix', 'mysql', 'pgsql', 'sybase', 'mssql', 'dblib', 'cubrid')))
{
@@ -153,7 +149,7 @@ class CI_DB_pdo_driver extends CI_DB {
}
// Add the database name to the DSN, if needed
- if (stripos($this->dsn, 'dbname') === FALSE
+ if (stripos($this->dsn, 'dbname') === FALSE
&& in_array($this->pdodriver, array('4D', 'pgsql', 'mysql', 'firebird', 'sybase', 'mssql', 'dblib', 'cubrid')))
{
$this->dsn .= 'dbname='.$this->database.';';
@@ -187,17 +183,16 @@ class CI_DB_pdo_driver extends CI_DB {
}
}
+ // --------------------------------------------------------------------
+
/**
* Non-persistent database connection
*
- * @access private called by the base class
- * @return resource
+ * @return object
*/
- function db_connect()
+ public function db_connect()
{
- $this->options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_SILENT;
-
- return $this->pdo_connect();
+ return $this->_pdo_connect();
}
// --------------------------------------------------------------------
@@ -205,15 +200,11 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* Persistent database connection
*
- * @access private called by the base class
- * @return resource
+ * @return object
*/
- function db_pconnect()
+ public function db_pconnect()
{
- $this->options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_SILENT;
- $this->options[PDO::ATTR_PERSISTENT] = TRUE;
-
- return $this->pdo_connect();
+ return $this->_pdo_connect(TRUE);
}
// --------------------------------------------------------------------
@@ -221,23 +212,31 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* PDO connection
*
- * @access private called by the PDO driver class
- * @return resource
+ * @param bool
+ * @return object
*/
- function pdo_connect()
+ protected function _pdo_connect($persistent = FALSE)
{
- // Refer : http://php.net/manual/en/ref.pdo-mysql.connection.php
- if ($this->pdodriver == 'mysql' && is_php('5.3.6'))
+ $this->options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_SILENT;
+ $persistent === FALSE OR $this->options[PDO::ATTR_PERSISTENT] = TRUE;
+
+ /* Prior to PHP 5.3.6, even if the charset was supplied in the DSN
+ * on connect - it was ignored. This is a work-around for the issue.
+ *
+ * Reference: http://www.php.net/manual/en/ref.pdo-mysql.connection.php
+ */
+ if ($this->subdriver === 'mysql' && ! is_php('5.3.6') && ! empty($this->char_set))
{
- $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] = "SET NAMES $this->char_set COLLATE '$this->dbcollat'";
+ $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET NAMES '.$this->char_set
+ .( ! empty($this->db_collat) ? " COLLATE '".$this->dbcollat."'" : '');
}
// Connecting...
- try
+ try
{
- $db = new PDO($this->dsn, $this->username, $this->password, $this->options);
- }
- catch (PDOException $e)
+ return new PDO($this->dsn, $this->username, $this->password, $this->options);
+ }
+ catch (PDOException $e)
{
if ($this->db_debug && empty($this->failover))
{
@@ -246,43 +245,6 @@ class CI_DB_pdo_driver extends CI_DB {
return FALSE;
}
-
- return $db;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Reconnect
- *
- * Keep / reestablish the db connection if no queries have been
- * sent for a length of time exceeding the server's idle timeout
- *
- * @access public
- * @return void
- */
- function reconnect()
- {
- if ($this->db->db_debug)
- {
- return $this->db->display_error('db_unsuported_feature');
- }
-
- return FALSE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Select the database
- *
- * @access private called by the base class
- * @return resource
- */
- function db_select()
- {
- // Not needed for PDO
- return TRUE;
}
// --------------------------------------------------------------------
@@ -304,53 +266,12 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* Execute the query
*
- * @access private called by the base class
- * @param string an SQL query
- * @return object
- */
- function _execute($sql)
- {
- $sql = $this->_prep_query($sql);
-
- $result_id = $this->conn_id->query($sql);
-
- if (is_object($result_id))
- {
- $this->affect_rows = $result_id->rowCount();
- }
- else
- {
- $this->affect_rows = 0;
- }
-
- return $result_id;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Prep the query
- *
- * If needed, each database adapter can prep the query string
- *
- * @access private called by execute()
* @param string an SQL query
- * @return string
+ * @return mixed
*/
- function _prep_query($sql)
+ protected function _execute($sql)
{
- if ($this->pdodriver === 'pgsql')
- {
- // Change the backtick(s) for Postgre
- $sql = str_replace('`', '"', $sql);
- }
- elseif ($this->pdodriver === 'sqlite')
- {
- // Change the backtick(s) for SQLite
- $sql = str_replace('`', '', $sql);
- }
-
- return $sql;
+ return $this->conn_id->query($sql);
}
// --------------------------------------------------------------------
@@ -358,18 +279,12 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* Begin Transaction
*
- * @access public
* @return bool
*/
- function trans_begin($test_mode = FALSE)
+ public function trans_begin($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)
+ if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
{
return TRUE;
}
@@ -377,7 +292,7 @@ class CI_DB_pdo_driver extends CI_DB {
// 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.
- $this->_trans_failure = (bool) ($test_mode === TRUE);
+ $this->_trans_failure = ($test_mode === TRUE);
return $this->conn_id->beginTransaction();
}
@@ -387,25 +302,17 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* Commit Transaction
*
- * @access public
* @return bool
*/
- function trans_commit()
+ public 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)
+ if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
{
return TRUE;
}
- $ret = $this->conn->commit();
-
- return $ret;
+ return $this->conn_id->commit();
}
// --------------------------------------------------------------------
@@ -413,25 +320,17 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* Rollback Transaction
*
- * @access public
* @return bool
*/
- function trans_rollback()
+ public 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)
+ if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
{
return TRUE;
}
- $ret = $this->conn_id->rollBack();
-
- return $ret;
+ return $this->conn_id->rollBack();
}
// --------------------------------------------------------------------
@@ -439,12 +338,11 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* Escape String
*
- * @access public
* @param string
* @param bool whether or not the string will be used in a LIKE condition
* @return string
*/
- function escape_str($str, $like = FALSE)
+ public function escape_str($str, $like = FALSE)
{
if (is_array($str))
{
@@ -455,24 +353,22 @@ class CI_DB_pdo_driver extends CI_DB {
return $str;
}
-
- //Escape the string
+
+ // Escape the string
$str = $this->conn_id->quote($str);
-
- //If there are duplicated quotes, trim them away
+
+ // If there are duplicated quotes, trim them away
if (strpos($str, "'") === 0)
{
$str = substr($str, 1, -1);
}
-
+
// escape LIKE condition wildcards
if ($like === TRUE)
{
- $str = str_replace( array('%', '_', $this->_like_escape_chr),
- array($this->_like_escape_chr.'%',
- $this->_like_escape_chr.'_',
- $this->_like_escape_chr.$this->_like_escape_chr),
- $str);
+ return str_replace(array($this->_like_escape_chr, '%', '_'),
+ array($this->_like_escape_chr.$this->_like_escape_chr, $this->_like_escape_chr.'%', $this->_like_escape_chr.'_'),
+ $str);
}
return $str;
@@ -483,12 +379,11 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* Affected Rows
*
- * @access public
- * @return integer
+ * @return int
*/
- function affected_rows()
+ public function affected_rows()
{
- return $this->affect_rows;
+ return is_object($this->result_id) ? $this->result_id->rowCount() : 0;
}
// --------------------------------------------------------------------
@@ -496,6 +391,7 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* Insert ID
*
+ * @param string
* @return int
*/
public function insert_id($name = NULL)
@@ -518,11 +414,10 @@ class CI_DB_pdo_driver extends CI_DB {
* Generates a platform-specific query string that counts all records in
* the specified database
*
- * @access public
* @param string
* @return string
*/
- function count_all($table = '')
+ public function count_all($table = '')
{
if ($table == '')
{
@@ -550,25 +445,29 @@ class CI_DB_pdo_driver extends CI_DB {
*
* Generates a platform-specific query string so that the table names can be fetched
*
- * @access private
- * @param boolean
+ * @param bool
* @return string
*/
- function _list_tables($prefix_limit = FALSE)
+ protected function _list_tables($prefix_limit = FALSE)
{
if ($this->pdodriver == 'pgsql')
{
// Analog function to show all tables in postgre
$sql = "SELECT * FROM information_schema.tables WHERE table_schema = 'public'";
}
+ elseif ($this->pdodriver == 'sqlite')
+ {
+ // Analog function to show all tables in sqlite
+ $sql = "SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%'";
+ }
else
{
- $sql = "SHOW TABLES FROM `".$this->database."`";
+ $sql = 'SHOW TABLES FROM '.$this->escape_identifiers($this->database);
}
if ($prefix_limit !== FALSE AND $this->dbprefix != '')
{
- return FALSE;
+ return FALSE;
}
return $sql;
@@ -581,13 +480,12 @@ class CI_DB_pdo_driver extends CI_DB {
*
* Generates a platform-specific query string so that the column names can be fetched
*
- * @access public
* @param string the table name
* @return string
*/
- function _list_columns($table = '')
+ protected function _list_columns($table = '')
{
- return 'SHOW COLUMNS FROM '.$this->_from_tables($table);
+ return 'SHOW COLUMNS FROM '.$this->escape_identifiers($table);
}
// --------------------------------------------------------------------
@@ -597,13 +495,28 @@ class CI_DB_pdo_driver extends CI_DB {
*
* Generates a platform-specific query so that the column data can be retrieved
*
- * @access public
* @param string the table name
- * @return object
+ * @return string
*/
- function _field_data($table)
+ protected function _field_data($table)
{
- return 'SELECT TOP 1 FROM '.$this->_from_tables($table);
+ if ($this->pdodriver == 'mysql' or $this->pdodriver == 'pgsql')
+ {
+ // Analog function for mysql and postgre
+ return 'SELECT * FROM '.$this->escape_identifiers($table).' LIMIT 1';
+ }
+ elseif ($this->pdodriver == 'oci')
+ {
+ // Analog function for oci
+ return 'SELECT * FROM '.$this->escape_identifiers($table).' WHERE ROWNUM <= 1';
+ }
+ elseif ($this->pdodriver == 'sqlite')
+ {
+ // Analog function for sqlite
+ return 'PRAGMA table_info('.$this->escape_identifiers($table).')';
+ }
+
+ return 'SELECT TOP 1 FROM '.$this->escape_identifiers($table);
}
// --------------------------------------------------------------------
@@ -638,150 +551,37 @@ class CI_DB_pdo_driver extends CI_DB {
// --------------------------------------------------------------------
/**
- * Escape the SQL Identifiers
- *
- * This function escapes column and table names
- *
- * @access private
- * @param string
- * @return string
- */
- function _escape_identifiers($item)
- {
- if ($this->_escape_char == '')
- {
- return $item;
- }
-
- foreach ($this->_reserved_identifiers as $id)
- {
- if (strpos($item, '.'.$id) !== FALSE)
- {
- $str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);
-
- // remove duplicates if the user already included the escape
- return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
- }
- }
-
- if (strpos($item, '.') !== FALSE)
- {
- $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item);
- $str .= $this->_escape_char;
- }
- else
- {
- $str = $this->_escape_char.$item.$this->_escape_char;
- }
-
- // remove duplicates if the user already included the escape
- return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
- }
-
- // --------------------------------------------------------------------
-
- /**
* From Tables
*
* This function implicitly groups FROM tables so there is no confusion
* about operator precedence in harmony with SQL standards
*
- * @access public
- * @param type
- * @return type
+ * @param array
+ * @return string
*/
- function _from_tables($tables)
+ protected function _from_tables($tables)
{
if ( ! is_array($tables))
{
$tables = array($tables);
}
- return (count($tables) == 1) ? '`'.$tables[0].'`' : '('.implode(', ', $tables).')';
+ return (count($tables) === 1) ? $tables[0] : '('.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->_from_tables($table).' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')';
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Insert_batch statement
- *
- * Generates a platform-specific insert string from the supplied data
- *
- * @access public
- * @param string the table name
- * @param array the insert keys
- * @param array the insert values
- * @return string
- */
- function _insert_batch($table, $keys, $values)
- {
- return 'INSERT INTO '.$this->_from_tables($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->_from_tables($table).' SET '.implode(', ', $valstr);
- $sql .= ($where != '' && count($where) >= 1) ? ' WHERE '.implode(' ', $where) : '';
- $sql .= $orderby.$limit;
-
- return $sql;
- }
-
- // --------------------------------------------------------------------
-
- /**
* Update_Batch statement
*
* Generates a platform-specific batch update string from the supplied data
*
- * @access public
* @param string the table name
* @param array the update data
* @param array the where clause
* @return string
*/
- function _update_batch($table, $values, $index, $where = NULL)
+ protected function _update_batch($table, $values, $index, $where = NULL)
{
$ids = array();
$where = ($where != '' && count($where) >=1) ? implode(" ", $where).' AND ' : '';
@@ -799,7 +599,7 @@ class CI_DB_pdo_driver extends CI_DB {
}
}
- $sql = 'UPDATE '.$this->_from_tables($table).' SET ';
+ $sql = 'UPDATE '.$table.' SET ';
$cases = '';
foreach ($final as $k => $v)
@@ -820,58 +620,22 @@ class CI_DB_pdo_driver extends CI_DB {
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 $this->_delete($table);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Delete statement
*
- * Generates a platform-specific delete string from the supplied data
+ * If the database does not support the truncate() command,
+ * then this method maps to 'DELETE FROM table'
*
- * @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(), $limit = FALSE)
+ protected function _truncate($table)
{
- $conditions = '';
-
- if (count($where) > 0 OR count($like) > 0)
- {
- $conditions = "\nWHERE ";
- $conditions .= implode("\n", $this->qb_where);
-
- if (count($where) > 0 && count($like) > 0)
- {
- $conditions .= " AND ";
- }
-
- $conditions .= implode("\n", $like);
- }
-
- $limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-
- return 'DELETE FROM '.$this->_from_tables($table).$conditions.$limit;
+ return 'DELETE FROM '.$table;
}
// --------------------------------------------------------------------
@@ -881,13 +645,12 @@ class CI_DB_pdo_driver extends CI_DB {
*
* Generates a platform-specific LIMIT clause
*
- * @access public
* @param string the sql query string
- * @param integer the number of rows to limit the query to
- * @param integer the offset value
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
* @return string
*/
- function _limit($sql, $limit, $offset)
+ protected function _limit($sql, $limit, $offset)
{
if ($this->pdodriver == 'cubrid' OR $this->pdodriver == 'sqlite')
{
@@ -899,7 +662,7 @@ class CI_DB_pdo_driver extends CI_DB {
{
$sql .= 'LIMIT '.$limit;
$sql .= ($offset > 0) ? ' OFFSET '.$offset : '';
-
+
return $sql;
}
}
@@ -909,13 +672,12 @@ class CI_DB_pdo_driver extends CI_DB {
/**
* Close DB Connection
*
- * @access public
- * @param resource
+ * @param object
* @return void
*/
- function _close($conn_id)
+ protected function _close($conn_id)
{
- $this->conn_id = null;
+ $this->conn_id = NULL;
}
}
diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php
index b4ddca5fe..ca8657a0f 100644
--- a/system/database/drivers/pdo/pdo_forge.php
+++ b/system/database/drivers/pdo/pdo_forge.php
@@ -1,13 +1,13 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
*
* NOTICE OF LICENSE
- *
+ *
* Licensed under the Open Software License version 3.0
- *
+ *
* This source file is subject to the Open Software License (OSL 3.0) that is
* bundled with this package in the files license.txt / license.rst. It is
* also available through the world wide web at this URL:
@@ -25,8 +25,6 @@
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* PDO Forge Class
*
@@ -36,58 +34,20 @@
*/
class CI_DB_pdo_forge extends CI_DB_forge {
- /**
- * Create database
- *
- * @access private
- * @param string the database name
- * @return bool
- */
- function _create_database()
- {
- // PDO has no "create database" command since it's
- // designed to connect to an existing database
- if ($this->db->db_debug)
- {
- return $this->db->display_error('db_unsuported_feature');
- }
- return FALSE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Drop database
- *
- * @access private
- * @param string the database name
- * @return bool
- */
- function _drop_database($name)
- {
- // PDO has no "drop database" command since it's
- // designed to connect to an existing database
- if ($this->db->db_debug)
- {
- return $this->db->display_error('db_unsuported_feature');
- }
- return FALSE;
- }
-
- // --------------------------------------------------------------------
+ protected $_drop_database = 'DROP DATABASE %s';
+ protected $_drop_table = 'DROP TABLE %s';
/**
* Create Table
*
- * @access private
* @param string the table name
* @param array the fields
* @param mixed primary key(s)
* @param mixed key(s)
- * @param boolean should 'IF NOT EXISTS' be added to the SQL
+ * @param bool should 'IF NOT EXISTS' be added to the SQL
* @return bool
*/
- function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
+ protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
{
$sql = 'CREATE TABLE ';
@@ -96,10 +56,10 @@ class CI_DB_pdo_forge extends CI_DB_forge {
$sql .= 'IF NOT EXISTS ';
}
- $sql .= '`'.$this->db->_escape_identifiers($table).'` (';
+ $sql .= $this->db->escape_identifiers($table).' (';
$current_field_count = 0;
- foreach ($fields as $field=>$attributes)
+ foreach ($fields as $field => $attributes)
{
// Numeric field names aren't allowed in databases, so if the key is
// numeric, we know it was assigned by PHP and the developer manually
@@ -189,40 +149,21 @@ class CI_DB_pdo_forge extends CI_DB_forge {
// --------------------------------------------------------------------
/**
- * Drop Table
- *
- * @access private
- * @return bool
- */
- function _drop_table($table)
- {
- // Not a supported PDO feature
- if ($this->db->db_debug)
- {
- return $this->db->display_error('db_unsuported_feature');
- }
- return FALSE;
- }
-
- // --------------------------------------------------------------------
-
- /**
* Alter table query
*
* Generates a platform-specific query so that a table can be altered
* Called by add_column(), drop_column(), and column_alter(),
*
- * @access private
* @param string the ALTER type (ADD, DROP, CHANGE)
* @param string the column name
* @param string the table name
* @param string the column definition
* @param string the default value
- * @param boolean should 'NOT NULL' be added
+ * @param bool should 'NOT NULL' be added
* @param string the field after which we should add the new field
- * @return object
+ * @return string
*/
- function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
+ protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
{
$sql = 'ALTER TABLE `'.$this->db->protect_identifiers($table).'` '.$alter_type.' '.$this->db->protect_identifiers($column_name);
@@ -257,25 +198,7 @@ class CI_DB_pdo_forge extends CI_DB_forge {
}
-
- // --------------------------------------------------------------------
-
- /**
- * Rename a table
- *
- * Generates a platform-specific query so that a table can be renamed
- *
- * @access private
- * @param string the old table name
- * @param string the new table name
- * @return string
- */
- function _rename_table($table_name, $new_table_name)
- {
- return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name);
- }
-
}
/* End of file pdo_forge.php */
-/* Location: ./system/database/drivers/pdo/pdo_forge.php */
+/* Location: ./system/database/drivers/pdo/pdo_forge.php */ \ No newline at end of file
diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php
index c333abc40..19aee1dfc 100644
--- a/system/database/drivers/pdo/pdo_result.php
+++ b/system/database/drivers/pdo/pdo_result.php
@@ -1,13 +1,13 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
*
* NOTICE OF LICENSE
- *
+ *
* Licensed under the Open Software License version 3.0
- *
+ *
* This source file is subject to the Open Software License (OSL 3.0) that is
* bundled with this package in the files license.txt / license.rst. It is
* also available through the world wide web at this URL:
@@ -25,8 +25,6 @@
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* PDO Result Class
*
@@ -51,10 +49,9 @@ class CI_DB_pdo_result extends CI_DB_result {
/**
* Number of rows in the result set
*
- * @access public
- * @return integer
+ * @return int
*/
- function num_rows()
+ public function num_rows()
{
if (empty($this->result_id) OR ! is_object($this->result_id))
{
@@ -74,10 +71,9 @@ class CI_DB_pdo_result extends CI_DB_result {
/**
* Fetch the result handler
*
- * @access public
* @return mixed
*/
- function result_assoc()
+ public function result_assoc()
{
// If the result already fetched before, use that one
if (count($this->result_array) > 0 OR $this->is_fetched)
@@ -94,9 +90,8 @@ class CI_DB_pdo_result extends CI_DB_result {
// Define the method and handler
$res_method = '_fetch_'.$type;
$res_handler = 'result_'.$type;
-
+
$this->$res_handler = array();
- $this->_data_seek(0);
while ($row = $this->$res_method())
{
@@ -116,10 +111,9 @@ class CI_DB_pdo_result extends CI_DB_result {
/**
* Number of fields in the result set
*
- * @access public
- * @return integer
+ * @return int
*/
- function num_fields()
+ public function num_fields()
{
return $this->result_id->columnCount();
}
@@ -131,16 +125,15 @@ class CI_DB_pdo_result extends CI_DB_result {
*
* Generates an array of column names
*
- * @access public
- * @return array
+ * @return bool
*/
- function list_fields()
+ public function list_fields()
{
if ($this->db->db_debug)
{
return $this->db->display_error('db_unsuported_feature');
}
-
+
return FALSE;
}
@@ -151,20 +144,58 @@ class CI_DB_pdo_result extends CI_DB_result {
*
* Generates an array of objects containing field meta-data
*
- * @access public
* @return array
*/
- function field_data()
+ public function field_data()
{
$data = array();
-
+
try
{
- for($i = 0; $i < $this->num_fields(); $i++)
+ if (strpos($this->result_id->queryString, 'PRAGMA') !== FALSE)
{
- $data[] = $this->result_id->getColumnMeta($i);
+ foreach ($this->result_array() as $field)
+ {
+ preg_match('/([a-zA-Z]+)(\(\d+\))?/', $field['type'], $matches);
+
+ $F = new stdClass();
+ $F->name = $field['name'];
+ $F->type = ( ! empty($matches[1])) ? $matches[1] : NULL;
+ $F->default = NULL;
+ $F->max_length = ( ! empty($matches[2])) ? preg_replace('/[^\d]/', '', $matches[2]) : NULL;
+ $F->primary_key = (int) $field['pk'];
+ $F->pdo_type = NULL;
+
+ $data[] = $F;
+ }
+ }
+ else
+ {
+ for($i = 0, $max = $this->num_fields(); $i < $max; $i++)
+ {
+ $field = $this->result_id->getColumnMeta($i);
+
+ $F = new stdClass();
+ $F->name = $field['name'];
+ $F->type = $field['native_type'];
+ $F->default = NULL;
+ $F->pdo_type = $field['pdo_type'];
+
+ if ($field['precision'] < 0)
+ {
+ $F->max_length = NULL;
+ $F->primary_key = 0;
+ }
+ else
+ {
+ $F->max_length = ($field['len'] > 255) ? 0 : $field['len'];
+ $F->primary_key = (int) ( ! empty($field['flags']) && in_array('primary_key', $field['flags']));
+ }
+
+ $data[] = $F;
+ }
}
-
+
return $data;
}
catch (Exception $e)
@@ -183,9 +214,9 @@ class CI_DB_pdo_result extends CI_DB_result {
/**
* Free the result
*
- * @return null
+ * @return void
*/
- function free_result()
+ public function free_result()
{
if (is_object($this->result_id))
{
@@ -196,31 +227,13 @@ class CI_DB_pdo_result extends CI_DB_result {
// --------------------------------------------------------------------
/**
- * Data Seek
- *
- * Moves the internal pointer to the desired offset. We call
- * this internally before fetching results to make sure the
- * result set starts at zero
- *
- * @access private
- * @return array
- */
- function _data_seek($n = 0)
- {
- return FALSE;
- }
-
- // --------------------------------------------------------------------
-
- /**
* Result - associative array
*
* Returns the result set as an array
*
- * @access private
* @return array
*/
- function _fetch_assoc()
+ protected function _fetch_assoc()
{
return $this->result_id->fetch(PDO::FETCH_ASSOC);
}
@@ -232,11 +245,10 @@ class CI_DB_pdo_result extends CI_DB_result {
*
* Returns the result set as an object
*
- * @access private
* @return object
*/
- function _fetch_object()
- {
+ protected function _fetch_object()
+ {
return $this->result_id->fetchObject();
}
diff --git a/system/database/drivers/pdo/pdo_utility.php b/system/database/drivers/pdo/pdo_utility.php
index 971ec8803..930842118 100644
--- a/system/database/drivers/pdo/pdo_utility.php
+++ b/system/database/drivers/pdo/pdo_utility.php
@@ -1,13 +1,13 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
*
* NOTICE OF LICENSE
- *
+ *
* Licensed under the Open Software License version 3.0
- *
+ *
* This source file is subject to the Open Software License (OSL 3.0) that is
* bundled with this package in the files license.txt / license.rst. It is
* also available through the world wide web at this URL:
@@ -25,8 +25,6 @@
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* PDO Utility Class
*
@@ -36,74 +34,15 @@
*/
class CI_DB_pdo_utility extends CI_DB_utility {
- /**
- * List databases
- *
- * @access private
- * @return bool
- */
- function _list_databases()
- {
- // Not sure if PDO lets you list all databases...
- if ($this->db->db_debug)
- {
- return $this->db->display_error('db_unsuported_feature');
- }
- return FALSE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Optimize table query
- *
- * Generates a platform-specific query so that a table can be optimized
- *
- * @access private
- * @param string the table name
- * @return object
- */
- function _optimize_table($table)
- {
- // Not a supported PDO feature
- if ($this->db->db_debug)
- {
- return $this->db->display_error('db_unsuported_feature');
- }
- return FALSE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Repair table query
- *
- * Generates a platform-specific query so that a table can be repaired
- *
- * @access private
- * @param string the table name
- * @return object
- */
- function _repair_table($table)
- {
- // Not a supported PDO feature
- if ($this->db->db_debug)
- {
- return $this->db->display_error('db_unsuported_feature');
- }
- return FALSE;
- }
-
- // --------------------------------------------------------------------
+ protected $_list_databases = FALSE;
/**
* PDO Export
*
- * @access private
* @param array Preferences
* @return mixed
*/
- function _backup($params = array())
+ protected function _backup($params = array())
{
// Currently unsupported
return $this->db->display_error('db_unsuported_feature');