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-rw-r--r--system/database/drivers/mysqli/mysqli_driver.php158
-rw-r--r--system/database/drivers/mysqli/mysqli_forge.php242
-rw-r--r--system/database/drivers/mysqli/mysqli_result.php12
-rw-r--r--system/database/drivers/mysqli/mysqli_utility.php26
4 files changed, 266 insertions, 172 deletions
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index be61aab20..17f025f61 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,6 +24,7 @@
* @since Version 1.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* MySQLi Database Adapter Class
@@ -40,34 +41,60 @@
*/
class CI_DB_mysqli_driver extends CI_DB {
+ /**
+ * Database driver
+ *
+ * @var string
+ */
public $dbdriver = 'mysqli';
- // The character used for escaping
- protected $_escape_char = '`';
-
- // clause and character used for LIKE escape sequences - not used in MySQL
- protected $_like_escape_str = '';
- protected $_like_escape_chr = '\\';
-
- protected $_random_keyword = ' RAND()'; // database specific random keyword
+ /**
+ * Compression flag
+ *
+ * @var bool
+ */
+ public $compress = FALSE;
/**
+ * DELETE hack flag
+ *
* Whether to use the MySQL "delete hack" which allows the number
* of affected rows to be shown. Uses a preg_replace when enabled,
* adding a bit more processing to all queries.
+ *
+ * @var bool
*/
public $delete_hack = TRUE;
+ // --------------------------------------------------------------------
+
/**
- * Non-persistent database connection
+ * Identifier escape character
*
+ * @var string
+ */
+ protected $_escape_char = '`';
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Database connection
+ *
+ * @param bool $persistent
* @return object
+ * @todo SSL support
*/
- public function db_connect()
+ public function db_connect($persistent = FALSE)
{
- return empty($this->port)
- ? @new mysqli($this->hostname, $this->username, $this->password, $this->database)
- : @new mysqli($this->hostname, $this->username, $this->password, $this->database, $this->port);
+ // Persistent connection support was added in PHP 5.3.0
+ $hostname = ($persistent === TRUE && is_php('5.3'))
+ ? 'p:'.$this->hostname : $this->hostname;
+ $port = empty($this->port) ? NULL : $this->port;
+ $client_flags = ($this->compress === TRUE) ? MYSQLI_CLIENT_COMPRESS : 0;
+ $mysqli = mysqli_init();
+
+ return @$mysqli->real_connect($hostname, $this->username, $this->password, $this->database, $port, NULL, $client_flags)
+ ? $mysqli : FALSE;
}
// --------------------------------------------------------------------
@@ -79,15 +106,7 @@ class CI_DB_mysqli_driver extends CI_DB {
*/
public function db_pconnect()
{
- // Persistent connection support was added in PHP 5.3.0
- if ( ! is_php('5.3'))
- {
- return $this->db_connect();
- }
-
- return empty($this->port)
- ? @new mysqli('p:'.$this->hostname, $this->username, $this->password, $this->database)
- : @new mysqli('p:'.$this->hostname, $this->username, $this->password, $this->database, $this->port);
+ return $this->db_connect(TRUE);
}
// --------------------------------------------------------------------
@@ -113,7 +132,7 @@ class CI_DB_mysqli_driver extends CI_DB {
/**
* Select the database
*
- * @param string database name
+ * @param string $database
* @return bool
*/
public function db_select($database = '')
@@ -137,7 +156,7 @@ class CI_DB_mysqli_driver extends CI_DB {
/**
* Set client character set
*
- * @param string
+ * @param string $charset
* @return bool
*/
protected function _db_set_charset($charset)
@@ -154,9 +173,16 @@ class CI_DB_mysqli_driver extends CI_DB {
*/
public function version()
{
- return isset($this->data_cache['version'])
- ? $this->data_cache['version']
- : $this->data_cache['version'] = $this->conn_id->server_info;
+ if (isset($this->data_cache['version']))
+ {
+ return $this->data_cache['version'];
+ }
+ elseif ( ! $this->conn_id)
+ {
+ $this->initialize();
+ }
+
+ return $this->data_cache['version'] = $this->conn_id->server_info;
}
// --------------------------------------------------------------------
@@ -164,7 +190,7 @@ class CI_DB_mysqli_driver extends CI_DB {
/**
* Execute the query
*
- * @param string an SQL query
+ * @param string $sql an SQL query
* @return mixed
*/
protected function _execute($sql)
@@ -179,7 +205,7 @@ class CI_DB_mysqli_driver extends CI_DB {
*
* If needed, each database adapter can prep the query string
*
- * @param string an SQL query
+ * @param string $sql an SQL query
* @return string
*/
protected function _prep_query($sql)
@@ -199,6 +225,7 @@ class CI_DB_mysqli_driver extends CI_DB {
/**
* Begin Transaction
*
+ * @param bool $test_mode
* @return bool
*/
public function trans_begin($test_mode = FALSE)
@@ -264,8 +291,8 @@ class CI_DB_mysqli_driver extends CI_DB {
/**
* Escape String
*
- * @param string
- * @param bool whether or not the string will be used in a LIKE condition
+ * @param string $str
+ * @param bool $like Whether or not the string will be used in a LIKE condition
* @return string
*/
public function escape_str($str, $like = FALSE)
@@ -324,7 +351,7 @@ class CI_DB_mysqli_driver extends CI_DB {
*
* Generates a platform-specific query string so that the table names can be fetched
*
- * @param bool
+ * @param bool $prefix_limit
* @return string
*/
protected function _list_tables($prefix_limit = FALSE)
@@ -346,7 +373,7 @@ class CI_DB_mysqli_driver extends CI_DB {
*
* Generates a platform-specific query string so that the column names can be fetched
*
- * @param string the table name
+ * @param string $table
* @return string
*/
protected function _list_columns($table = '')
@@ -359,8 +386,8 @@ class CI_DB_mysqli_driver extends CI_DB {
/**
* Returns an object with field data
*
- * @param string the table name
- * @return object
+ * @param string $table
+ * @return array
*/
public function field_data($table = '')
{
@@ -369,19 +396,24 @@ class CI_DB_mysqli_driver extends CI_DB {
return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
}
- $query = $this->query('DESCRIBE '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
+ if (($query = $this->query('SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE))) === FALSE)
+ {
+ return FALSE;
+ }
$query = $query->result_object();
$retval = array();
for ($i = 0, $c = count($query); $i < $c; $i++)
{
- preg_match('/([a-z]+)(\(\d+\))?/', $query[$i]->Type, $matches);
-
$retval[$i] = new stdClass();
$retval[$i]->name = $query[$i]->Field;
- $retval[$i]->type = empty($matches[1]) ? NULL : $matches[1];
+
+ sscanf($query[$i]->Type, '%[a-z](%d)',
+ $retval[$i]->type,
+ $retval[$i]->max_length
+ );
+
$retval[$i]->default = $query[$i]->Default;
- $retval[$i]->max_length = empty($matches[2]) ? NULL : preg_replace('/[^\d]/', '', $matches[2]);
$retval[$i]->primary_key = (int) ($query[$i]->Key === 'PRI');
}
@@ -400,6 +432,14 @@ class CI_DB_mysqli_driver extends CI_DB {
*/
public function error()
{
+ if ( ! empty($this->conn_id->connect_errno))
+ {
+ return array(
+ 'code' => $this->conn_id->connect_errno,
+ 'message' => is_php('5.2.9') ? $this->conn_id->connect_error : mysqli_connect_error()
+ );
+ }
+
return array('code' => $this->conn_id->errno, 'message' => $this->conn_id->error);
}
@@ -410,12 +450,12 @@ class CI_DB_mysqli_driver extends CI_DB {
*
* Generates a platform-specific batch update string from the supplied data
*
- * @param string the table name
- * @param array the update data
- * @param array the where clause
+ * @param string $table Table name
+ * @param array $values Update data
+ * @param string $index WHERE key
* @return string
*/
- protected function _update_batch($table, $values, $index, $where = NULL)
+ protected function _update_batch($table, $values, $index)
{
$ids = array();
foreach ($values as $key => $val)
@@ -426,7 +466,7 @@ class CI_DB_mysqli_driver extends CI_DB {
{
if ($field !== $index)
{
- $final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
+ $final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
}
}
}
@@ -439,11 +479,29 @@ class CI_DB_mysqli_driver extends CI_DB {
.'ELSE '.$k.' END, ';
}
- $where = ($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '';
+ $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE);
+
+ return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * FROM tables
+ *
+ * Groups tables in FROM clauses if needed, so there is no confusion
+ * about operator precedence.
+ *
+ * @return string
+ */
+ protected function _from_tables()
+ {
+ if ( ! empty($this->qb_join) && count($this->qb_from) > 1)
+ {
+ return '('.implode(', ', $this->qb_from).')';
+ }
- return 'UPDATE '.$table.' SET '.substr($cases, 0, -2)
- .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
- .$index.' IN('.implode(',', $ids).')';
+ return implode(', ', $this->qb_from);
}
// --------------------------------------------------------------------
diff --git a/system/database/drivers/mysqli/mysqli_forge.php b/system/database/drivers/mysqli/mysqli_forge.php
index b74c775b2..f29ea5ade 100644
--- a/system/database/drivers/mysqli/mysqli_forge.php
+++ b/system/database/drivers/mysqli/mysqli_forge.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,6 +24,7 @@
* @since Version 1.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* MySQLi Forge Class
@@ -34,165 +35,178 @@
*/
class CI_DB_mysqli_forge extends CI_DB_forge {
+ /**
+ * CREATE DATABASE statement
+ *
+ * @var string
+ */
protected $_create_database = 'CREATE DATABASE %s CHARACTER SET %s COLLATE %s';
/**
- * Process Fields
+ * CREATE TABLE keys flag
*
- * @param mixed the fields
- * @return string
+ * Whether table keys are created from within the
+ * CREATE TABLE statement.
+ *
+ * @var bool
*/
- protected function _process_fields($fields)
- {
- $current_field_count = 0;
- $sql = '';
-
- foreach ($fields as $field => $attributes)
- {
- // Numeric field names aren't allowed in databases, so if the key is
- // numeric, we know it was assigned by PHP and the developer manually
- // entered the field information, so we'll simply add it to the list
- if (is_numeric($field))
- {
- $sql .= "\n\t".$attributes;
- }
- else
- {
- $attributes = array_change_key_case($attributes, CASE_UPPER);
-
- $sql .= "\n\t".$this->db->escape_identifiers($field);
-
- empty($attributes['NAME']) OR $sql .= ' '.$this->db->escape_identifiers($attributes['NAME']).' ';
-
- if ( ! empty($attributes['TYPE']))
- {
- $sql .= ' '.$attributes['TYPE'];
-
- if ( ! empty($attributes['CONSTRAINT']))
- {
- switch (strtolower($attributes['TYPE']))
- {
- case 'decimal':
- case 'float':
- case 'numeric':
- $sql .= '('.implode(',', $attributes['CONSTRAINT']).')';
- break;
- case 'enum':
- case 'set':
- $sql .= '("'.implode('","', $attributes['CONSTRAINT']).'")';
- break;
- default:
- $sql .= '('.$attributes['CONSTRAINT'].')';
- }
- }
- }
+ protected $_create_table_keys = TRUE;
- if ( ! empty($attributes['UNSIGNED']) && $attributes['UNSIGNED'] === TRUE)
- {
- $sql .= ' UNSIGNED';
- }
-
- if (isset($attributes['DEFAULT']))
- {
- $sql .= " DEFAULT '".$attributes['DEFAULT']."'";
- }
+ /**
+ * UNSIGNED support
+ *
+ * @var array
+ */
+ protected $_unsigned = array(
+ 'TINYINT',
+ 'SMALLINT',
+ 'MEDIUMINT',
+ 'INT',
+ 'INTEGER',
+ 'BIGINT',
+ 'REAL',
+ 'DOUBLE',
+ 'DOUBLE PRECISION',
+ 'FLOAT',
+ 'DECIMAL',
+ 'NUMERIC'
+ );
- $sql .= ( ! empty($attributes['NULL']) && $attributes['NULL'] === TRUE)
- ? ' NULL' : ' NOT NULL';
+ /**
+ * NULL value representation in CREATE/ALTER TABLE statements
+ *
+ * @var string
+ */
+ protected $_null = 'NULL';
- if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE)
- {
- $sql .= ' AUTO_INCREMENT';
- }
- }
+ // --------------------------------------------------------------------
- // don't add a comma on the end of the last field
- if (++$current_field_count < count($fields))
- {
- $sql .= ',';
- }
- }
+ /**
+ * Class constructor
+ *
+ * @param object &$db Database object
+ * @return void
+ */
+ public function __construct(&$db)
+ {
+ parent::__construct($db);
- return $sql;
+ $this->_create_table .= ' DEFAULT CHARSET '.$this->db->char_set.' COLLATE '.$this->db->dbcollat;
}
// --------------------------------------------------------------------
/**
- * Create Table
+ * ALTER TABLE
*
- * @param string the table name
- * @param mixed the fields
- * @param mixed primary key(s)
- * @param mixed key(s)
- * @param bool should 'IF NOT EXISTS' be added to the SQL
- * @return bool
+ * @param string $alter_type ALTER type
+ * @param string $table Table name
+ * @param mixed $field Column definition
+ * @return string|string[]
*/
- protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
+ protected function _alter_table($alter_type, $table, $field)
{
- $sql = 'CREATE TABLE ';
-
- if ($if_not_exists === TRUE)
- {
- $sql .= 'IF NOT EXISTS ';
- }
-
- $sql .= $this->db->escape_identifiers($table).' ('.$this->_process_fields($fields);
-
- if (count($primary_keys) > 0)
+ if ($alter_type === 'DROP')
{
- $key_name = $this->db->escape_identifiers(implode('_', $primary_keys));
- $sql .= ",\n\tPRIMARY KEY ".$key_name.' ('.implode(', ', $this->db->escape_identifiers($primary_keys)).')';
+ return parent::_alter_table($alter_type, $table, $field);
}
- if (is_array($keys) && count($keys) > 0)
+ $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table);
+ for ($i = 0, $c = count($field); $i < $c; $i++)
{
- foreach ($keys as $key)
+ if ($field[$i]['_literal'] !== FALSE)
{
- if (is_array($key))
+ $field[$i] = ($alter_type === 'ADD')
+ ? "\n\tADD ".$field[$i]['_literal']
+ : "\n\tMODIFY ".$field[$i]['_literal'];
+ }
+ else
+ {
+ if ($alter_type === 'ADD')
{
- $key_name = $this->db->escape_identifiers(implode('_', $key));
- $key = $this->db->escape_identifiers($key);
+ $field[$i]['_literal'] = "\n\tADD ";
}
else
{
- $key_name = $this->db->escape_identifiers($key);
- $key = array($key_name);
+ $field[$i]['_literal'] = empty($field[$i]['new_name']) ? "\n\tMODIFY " : "\n\tCHANGE ";
}
- $sql .= ",\n\tKEY ".$key_name.' ('.implode(', ', $key).')';
+ $field[$i] = $field[$i]['_literal'].$this->_process_column($field[$i]);
}
}
- return $sql."\n) DEFAULT CHARACTER SET ".$this->db->char_set.' COLLATE '.$this->db->dbcollat.';';
+ return array($sql.implode(',', $field));
}
// --------------------------------------------------------------------
/**
- * Alter table query
+ * Process column
*
- * Generates a platform-specific query so that a table can be altered
- * Called by add_column(), drop_column(), and column_alter(),
+ * @param array $field
+ * @return string
+ */
+ protected function _process_column($field)
+ {
+ $extra_clause = isset($field['after'])
+ ? ' AFTER '.$this->db->escape_identifiers($field['after']) : '';
+
+ if (empty($extra_clause) && isset($field['first']) && $field['first'] === TRUE)
+ {
+ $extra_clause = ' FIRST';
+ }
+
+ return $this->db->escape_identifiers($field['name'])
+ .(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name']))
+ .' '.$field['type'].$field['length']
+ .$field['unsigned']
+ .$field['null']
+ .$field['default']
+ .$field['auto_increment']
+ .$field['unique']
+ .$extra_clause;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Process indexes
*
- * @param string the ALTER type (ADD, DROP, CHANGE)
- * @param string the column name
- * @param array fields
- * @param string the field after which we should add the new field
+ * @param string $table (ignored)
* @return string
*/
- protected function _alter_table($alter_type, $table, $fields, $after_field = '')
+ protected function _process_indexes($table)
{
- $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' '.$alter_type.' ';
+ $sql = '';
- // DROP has everything it needs now.
- if ($alter_type === 'DROP')
+ for ($i = 0, $c = count($this->keys); $i < $c; $i++)
{
- return $sql.$this->db->escape_identifiers($fields);
+ if (is_array($this->keys[$i]))
+ {
+ for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++)
+ {
+ if ( ! isset($this->fields[$this->keys[$i][$i2]]))
+ {
+ unset($this->keys[$i][$i2]);
+ continue;
+ }
+ }
+ }
+ elseif ( ! isset($this->fields[$this->keys[$i]]))
+ {
+ unset($this->keys[$i]);
+ continue;
+ }
+
+ is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]);
+
+ $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i]))
+ .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')';
}
- return $sql.$this->_process_fields($fields)
- .($after_field !== '' ? ' AFTER '.$this->db->escape_identifiers($after_field) : '');
+ $this->keys = array();
+
+ return $sql;
}
}
diff --git a/system/database/drivers/mysqli/mysqli_result.php b/system/database/drivers/mysqli/mysqli_result.php
index c1ec4da76..ac0f1a8d1 100644
--- a/system/database/drivers/mysqli/mysqli_result.php
+++ b/system/database/drivers/mysqli/mysqli_result.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,6 +24,7 @@
* @since Version 1.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* MySQLi Result Class
@@ -101,7 +102,7 @@ class CI_DB_mysqli_result extends CI_DB_result {
$retval[$i]->type = $field_data[$i]->type;
$retval[$i]->max_length = $field_data[$i]->max_length;
$retval[$i]->primary_key = (int) ($field_data[$i]->flags & 2);
- $retval[$i]->default = '';
+ $retval[$i]->default = $field_data[$i]->def;
}
return $retval;
@@ -130,11 +131,12 @@ class CI_DB_mysqli_result extends CI_DB_result {
*
* Moves the internal pointer to the desired offset. We call
* this internally before fetching results to make sure the
- * result set starts at zero
+ * result set starts at zero.
*
+ * @param int $n
* @return bool
*/
- protected function _data_seek($n = 0)
+ public function data_seek($n = 0)
{
return $this->result_id->data_seek($n);
}
@@ -160,7 +162,7 @@ class CI_DB_mysqli_result extends CI_DB_result {
*
* Returns the result set as an object
*
- * @param string
+ * @param string $class_name
* @return object
*/
protected function _fetch_object($class_name = 'stdClass')
diff --git a/system/database/drivers/mysqli/mysqli_utility.php b/system/database/drivers/mysqli/mysqli_utility.php
index 5d2bdbce0..345691e84 100644
--- a/system/database/drivers/mysqli/mysqli_utility.php
+++ b/system/database/drivers/mysqli/mysqli_utility.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,6 +24,7 @@
* @since Version 1.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* MySQLi Utility Class
@@ -34,14 +35,33 @@
*/
class CI_DB_mysqli_utility extends CI_DB_utility {
+ /**
+ * List databases statement
+ *
+ * @var string
+ */
protected $_list_databases = 'SHOW DATABASES';
+
+ /**
+ * OPTIMIZE TABLE statement
+ *
+ * @var string
+ */
protected $_optimize_table = 'OPTIMIZE TABLE %s';
+
+ /**
+ * REPAIR TABLE statement
+ *
+ * @var string
+ */
protected $_repair_table = 'REPAIR TABLE %s';
+ // --------------------------------------------------------------------
+
/**
- * MySQLi Export
+ * Export
*
- * @param array Preferences
+ * @param array $params Preferences
* @return mixed
*/
protected function _backup($params = array())
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-09 16:21:34 +0100