Viewing file:  ConnectionManager.php (10.51 KB) -rw-r--r--
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<?php
class ConnectionManager
{
/**
* Cached Connection objects
* @type Array
*/
protected $cache = array();
/**
* Project connections data
* @type Array
*/
protected $_connectionsData;
/**
* Project connections data
* @type Array
*/
protected $_connectionsIdByName = array();
/**
* An array storing the correspondence between project
* datasource tables names and connections ids
* @type Array
*/
protected $_tablesConnectionIds;
/**
* @constructor
*/
function __construct()
{
$this->_setConnectionsData();
$this->_setTablesConnectionIds();
}
/**
* Get connection object by the table name
* @param String tName
* @return Connection
*/
public function byTable( $tName )
{
$connId = $this->_tablesConnectionIds[ $tName ];
if( !$connId )
return $this->getDefault();
return $this->byId( $connId );
}
/**
* Get connection object by the connection name
* @param String connName
* @return Connection
*/
public function byName( $connName )
{
$connId = $this->getIdByName( $connName );
if( !$connId )
return $this->getDefault();
return $this->byId( $connId );
}
/**
* Get connection id by the connection name
* @param String connName
* @return String
*/
protected function getIdByName( $connName )
{
return $this->_connectionsIdByName[ $connName ];
}
/**
* Get connection object by the connection id
* @param String connId
* @return Connection
*/
public function byId( $connId )
{
if( !isset( $this->cache[ $connId ] ) )
$this->cache[ $connId ] = $this->getConnection( $connId );
return $this->cache[ $connId ];
}
/**
* Get the default db connection class
* @return Connection
*/
public function getDefault()
{
return $this->byId( "itce_data_at_itce_co_in" );
}
/**
* Get the users table db connection
* @return Connection
*/
public function getForLogin()
{
return $this->byId( "itce_data_at_itce_co_in" );
}
/**
* Get the log table db connection
* @return Connection
*/
public function getForAudit()
{
return $this->getDefault();
}
/**
* Get the locking table db connection
* @return Connection
*/
public function getForLocking()
{
return $this->getDefault();
}
/**
* Get the 'ug_groups' table db connection
* @return Connection
*/
public function getForUserGroups()
{
return $this->getDefault();
}
/**
* Get the saved searches table db connection
* @return Connection
*/
public function getForSavedSearches()
{
return $this->getDefault();
}
/**
* Get the webreports tables db connection
* @return Connection
*/
public function getForWebReports()
{
return $this->getDefault();
}
/**
* @param String connId
* @return Connection
*/
protected function getConnection( $connId )
{
include_once getabspath("connections/Connection.php");
$data = $this->_connectionsData[ $connId ];
switch( $data["connStringType"] )
{
case "mysql":
if( useMySQLiLib() )
{
include_once getabspath("connections/MySQLiConnection.php");
return new MySQLiConnection( $data );
}
include_once getabspath("connections/MySQLConnection.php");
return new MySQLConnection( $data );
case "mssql":
case "compact":
if( useMSSQLWinConnect() )
{
include_once getabspath("connections/MSSQLWinConnection.php");
return new MSSQLWinConnection( $data );
}
if( isSqlsrvExtLoaded() )
{
include_once getabspath("connections/MSSQLSrvConnection.php");
return new MSSQLSrvConnection( $data );
}
if( function_exists("mssql_connect") ) {
include_once getabspath("connections/MSSQLUnixConnection.php");
return new MSSQLUnixConnection( $data );
}
if( class_exists("PDO") ) {
include_once getabspath("connections/PDOConnection.php");
$drivers = pdo_drivers();
if( in_array( "sqlsrv", $drivers) )
{
$data["PDOString"] = "sqlsrv:Server=" . $data["connInfo"][0] . ";Database=" . $data["connInfo"][3];
$data["PDOUser"] = $data["connInfo"][1];
$data["PDOPass"] = $data["connInfo"][2];
return new PDOConnection( $data );
}
if( in_array( "dblib", $drivers) )
{
$data["PDOString"] = "dblib:host=" . $data["connInfo"][0] . ";dbname=" . $data["connInfo"][3];
$data["PDOUser"] = $data["connInfo"][1];
$data["PDOPass"] = $data["connInfo"][2];
return new PDOConnection( $data );
}
}
echo "No SQL Server driver found in your PHP settings.";
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
echo "<br>To enable SQL Server support add the following line to php.ini file:";
echo "<br>extension=php_com_dotnet.dll";
}
exit();
case "msaccess":
case "odbc":
case "odbcdsn":
case "custom":
case "file":
if( stripos($data["ODBCString"], 'Provider=') !== false )
{
include_once getabspath("connections/ADOConnection.php");
return new ADOConnection( $data );
}
include_once getabspath("connections/ODBCConnection.php");
return new ODBCConnection( $data );
case "oracle":
include_once getabspath("connections/OracleConnection.php");
return new OracleConnection( $data );
case "postgre":
include_once getabspath("connections/PostgreConnection.php");
return new PostgreConnection( $data );
case "db2":
include_once getabspath("connections/DB2Connection.php");
return new DB2Connection( $data );
case "informix":
include_once getabspath("connections/InformixConnection.php");
return new InformixConnection( $data );
case "sqlite":
include_once getabspath("connections/SQLite3Connection.php");
return new SQLite3Connection( $data );
case "pdo":
include_once getabspath("connections/PDOConnection.php");
return new PDOConnection( $data );
}
}
public function getConectionsIds()
{
$connectionsIds = array();
foreach ($this->_connectionsData as $connId => $data) {
$connectionsIds[] = $connId;
}
return $connectionsIds;
}
/**
* Set the data representing the project's
* db connection properties
*/
protected function _setConnectionsData()
{
// content of this function can be modified on demo account
// variable names $data and $connectionsData are important
$connectionsData = array();
$data = array();
$data["dbType"] = 0;
$data["connId"] = "itce_data_at_itce_co_in";
$data["connName"] = "sql_itce_co_in at itce.co.in";
$data["connStringType"] = "mysql";
$data["connectionString"] = "mysql;localhost;sql_itce_co_in;02a26fb2e4265;;sql_itce_co_in;https://itce.co.in/data/phprunner.php;0"; //currently unused
$this->_connectionsIdByName["sql_itce_co_in at itce.co.in"] = "itce_data_at_itce_co_in";
$data["connInfo"] = array();
$data["ODBCUID"] = "sql_itce_co_in";
$data["ODBCPWD"] = "02a26fb2e4265";
$data["leftWrap"] = "`";
$data["rightWrap"] = "`";
$data["DBPath"] = "db"; //currently unused
$data["useServerMapPath"] = 1; //currently unused
$data["connInfo"][0] = "localhost";
$data["connInfo"][1] = "sql_itce_co_in";
$data["connInfo"][2] = "02a26fb2e4265";
$data["connInfo"][3] = "";
$data["connInfo"][4] = "sql_itce_co_in";
$data["connInfo"][5] = "https://itce.co.in/data/phprunner.php"; //currently unused
$data["connInfo"][6] = "0"; //currently unused
$data["ODBCString"] = "DRIVER={MySQL ODBC 3.51 Driver};Server=localhost;Uid=sql_itce_co_in;Pwd=02a26fb2e4265;Database=sql_itce_co_in;OPTION=3";
// encription set
$data["EncryptInfo"] = array();
$data["EncryptInfo"]["mode"] = 0;
$data["EncryptInfo"]["alg"] = 128;
$data["EncryptInfo"]["key"] = "";
$connectionsData["itce_data_at_itce_co_in"] = $data;
$this->_connectionsData = &$connectionsData;
}
/**
* Set the data representing the correspondence between
* the project's table names and db connections
*/
protected function _setTablesConnectionIds()
{
$connectionsIds = array();
$connectionsIds["PERMISSION_EXAM"] = "itce_data_at_itce_co_in";
$connectionsIds["aboutus"] = "itce_data_at_itce_co_in";
$connectionsIds["admission"] = "itce_data_at_itce_co_in";
$connectionsIds["answersheet"] = "itce_data_at_itce_co_in";
$connectionsIds["batch"] = "itce_data_at_itce_co_in";
$connectionsIds["books"] = "itce_data_at_itce_co_in";
$connectionsIds["branch"] = "itce_data_at_itce_co_in";
$connectionsIds["certificate"] = "itce_data_at_itce_co_in";
$connectionsIds["course_details"] = "itce_data_at_itce_co_in";
$connectionsIds["complain"] = "itce_data_at_itce_co_in";
$connectionsIds["courses"] = "itce_data_at_itce_co_in";
$connectionsIds["fees"] = "itce_data_at_itce_co_in";
$connectionsIds["gallery"] = "itce_data_at_itce_co_in";
$connectionsIds["marks"] = "itce_data_at_itce_co_in";
$connectionsIds["monthly_fees"] = "itce_data_at_itce_co_in";
$connectionsIds["news"] = "itce_data_at_itce_co_in";
$connectionsIds["question_set_paper"] = "itce_data_at_itce_co_in";
$connectionsIds["slider_photo"] = "itce_data_at_itce_co_in";
$connectionsIds["teacher"] = "itce_data_at_itce_co_in";
$connectionsIds["test_result"] = "itce_data_at_itce_co_in";
$connectionsIds["studentlogin"] = "itce_data_at_itce_co_in";
$connectionsIds["teacher_registration"] = "itce_data_at_itce_co_in";
$connectionsIds["videolist"] = "itce_data_at_itce_co_in";
$connectionsIds["website_theme"] = "itce_data_at_itce_co_in";
$this->_tablesConnectionIds = &$connectionsIds;
}
/**
* Check if It's possible to add to one table's sql query
* an sql subquery to another table.
* Access doesn't support subqueries from the same table as main.
* @param String dataSourceTName1
* @param String dataSourceTName2
* @return Boolean
*/
public function checkTablesSubqueriesSupport( $dataSourceTName1, $dataSourceTName2 )
{
$connId1 = $this->_tablesConnectionIds[ $dataSourceTName1 ];
$connId2 = $this->_tablesConnectionIds[ $dataSourceTName2 ];
if( $connId1 != $connId2 )
return false;
if( $this->_connectionsData[ $connId1 ]["dbType"] == nDATABASE_Access && $dataSourceTName1 == $dataSourceTName2 )
return false;
return true;
}
/**
* Close db connections
* @destructor
*/
function __desctruct()
{
foreach( $this->cache as $connection )
{
$connection->close();
}
}
}
?>
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