mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
synced 2024-11-15 03:18:26 +00:00
Making ConnectionManager an static object instead of a singleton
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parent
2ce2ea222c
commit
66744c68b0
1 changed files with 57 additions and 52 deletions
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@ -36,7 +36,7 @@ class ConnectionManager {
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* @var DATABASE_CONFIG
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* @access public
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*/
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public $config = null;
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public static $config = null;
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/**
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* Holds instances DataSource objects
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@ -44,7 +44,7 @@ class ConnectionManager {
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* @var array
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* @access protected
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*/
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protected $_dataSources = array();
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protected static $_dataSources = array();
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/**
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* Contains a list of all file and class names used in Connection settings
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@ -52,33 +52,27 @@ class ConnectionManager {
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* @var array
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* @access protected
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*/
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protected $_connectionsEnum = array();
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protected static $_connectionsEnum = array();
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/**
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* Constructor.
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* Indicates if the init code for this class has alredy been executed
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*
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* @var boolean
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*/
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private static $_init = false;
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/**
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* Loads connections configuration.
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*
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*/
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function __construct() {
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private static function init() {
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include_once CONFIGS . 'database.php';
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if (class_exists('DATABASE_CONFIG')) {
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$this->config = new DATABASE_CONFIG();
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$this->_getConnectionObjects();
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self::$config = new DATABASE_CONFIG();
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self::_getConnectionObjects();
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}
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}
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/**
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* Gets a reference to the ConnectionManger object instance
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*
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* @return object Instance
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*/
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public static function &getInstance() {
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static $instance = array();
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if (!$instance) {
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$instance[0] = new ConnectionManager();
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}
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return $instance[0];
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register_shutdown_function('ConnectionManager::shutdown');
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self::$_init = true;
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}
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/**
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@ -87,32 +81,33 @@ class ConnectionManager {
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* @param string $name The name of the DataSource, as defined in app/config/database.php
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* @return object Instance
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*/
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public static function &getDataSource($name) {
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$_this = ConnectionManager::getInstance();
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public static function getDataSource($name) {
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if (empty(self::$_init)) {
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self::init();
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}
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if (!empty($_this->_dataSources[$name])) {
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$return = $_this->_dataSources[$name];
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if (!empty(self::$_dataSources[$name])) {
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$return = self::$_dataSources[$name];
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return $return;
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}
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if (empty($_this->_connectionsEnum[$name])) {
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if (empty(self::$_connectionsEnum[$name])) {
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trigger_error(__("ConnectionManager::getDataSource - Non-existent data source %s", $name), E_USER_ERROR);
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$null = null;
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return $null;
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}
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$conn = $_this->_connectionsEnum[$name];
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$conn = self::$_connectionsEnum[$name];
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$class = $conn['classname'];
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if ($_this->loadDataSource($name) === null) {
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if (self::loadDataSource($name) === null) {
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trigger_error(__("ConnectionManager::getDataSource - Could not load class %s", $class), E_USER_ERROR);
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$null = null;
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return $null;
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}
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$_this->_dataSources[$name] = new $class($_this->config->{$name});
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$_this->_dataSources[$name]->configKeyName = $name;
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self::$_dataSources[$name] = new $class(self::$config->{$name});
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self::$_dataSources[$name]->configKeyName = $name;
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$return = $_this->_dataSources[$name];
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return $return;
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return self::$_dataSources[$name];
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}
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/**
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@ -121,8 +116,10 @@ class ConnectionManager {
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* @return array List of available connections
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*/
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public static function sourceList() {
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$_this = ConnectionManager::getInstance();
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return array_keys($_this->_dataSources);
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if (empty(self::$_init)) {
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self::init();
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}
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return array_keys(self::$_dataSources);
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}
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/**
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@ -135,8 +132,10 @@ class ConnectionManager {
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* in the ConnectionManager.
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*/
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public static function getSourceName(&$source) {
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$_this = ConnectionManager::getInstance();
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foreach ($_this->_dataSources as $name => $ds) {
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if (empty(self::$_init)) {
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self::init();
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}
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foreach (self::$_dataSources as $name => $ds) {
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if ($ds == $source) {
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return $name;
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}
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@ -153,12 +152,14 @@ class ConnectionManager {
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* @return boolean True on success, null on failure or false if the class is already loaded
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*/
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public static function loadDataSource($connName) {
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$_this = ConnectionManager::getInstance();
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if (empty(self::$_init)) {
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self::init();
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}
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if (is_array($connName)) {
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$conn = $connName;
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} else {
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$conn = $_this->_connectionsEnum[$connName];
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$conn = self::$_connectionsEnum[$connName];
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}
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if (class_exists($conn['classname'], false)) {
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@ -188,8 +189,10 @@ class ConnectionManager {
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* (as defined in Connections), and the value is an array with keys 'filename' and 'classname'.
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*/
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public static function enumConnectionObjects() {
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$_this = ConnectionManager::getInstance();
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return $_this->_connectionsEnum;
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if (empty(self::$_init)) {
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self::init();
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}
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return self::$_connectionsEnum;
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}
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/**
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@ -199,16 +202,18 @@ class ConnectionManager {
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* @param array $config The DataSource configuration settings
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* @return object A reference to the DataSource object, or null if creation failed
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*/
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public static function &create($name = '', $config = array()) {
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$_this = ConnectionManager::getInstance();
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public static function create($name = '', $config = array()) {
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if (empty(self::$_init)) {
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self::init();
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}
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if (empty($name) || empty($config) || array_key_exists($name, $_this->_connectionsEnum)) {
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if (empty($name) || empty($config) || array_key_exists($name, self::$_connectionsEnum)) {
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$null = null;
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return $null;
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}
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$_this->config->{$name} = $config;
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$_this->_connectionsEnum[$name] = $_this->__connectionData($config);
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$return = $_this->getDataSource($name);
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self::$config->{$name} = $config;
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self::$_connectionsEnum[$name] = self::_connectionData($config);
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$return = self::getDataSource($name);
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return $return;
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}
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@ -217,12 +222,12 @@ class ConnectionManager {
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*
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* @return void
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*/
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protected function _getConnectionObjects() {
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$connections = get_object_vars($this->config);
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protected static function _getConnectionObjects() {
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$connections = get_object_vars(self::$config);
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if ($connections != null) {
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foreach ($connections as $name => $config) {
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$this->_connectionsEnum[$name] = $this->__connectionData($config);
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self::$_connectionsEnum[$name] = self::_connectionData($config);
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}
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} else {
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throw new MissingConnectionException(array('class' => 'ConnectionManager'));
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@ -234,7 +239,7 @@ class ConnectionManager {
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*
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* @return array An indexed array with: filename, classname, plugin and parent
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*/
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private function __connectionData($config) {
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private static function _connectionData($config) {
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$package = $classname = $plugin = null;
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list($plugin, $classname) = pluginSplit($config['datasource']);
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@ -249,7 +254,7 @@ class ConnectionManager {
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* Destructor.
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*
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*/
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function __destruct() {
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public static function shutdown() {
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if (Configure::read('Session.defaults') == 'database' && function_exists('session_write_close')) {
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session_write_close();
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}
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