/**
* change the active database-connection. all db-functions
* are performed at the new connection.
*
* ATTENTION: the old connection is *not* closed!
*
**/
function changeDB($strIdentifier)
{
$objDataObjectPool = new DataObjectPool('Database-Definition');
$objNewDB = $objDataObjectPool->get($strIdentifier);
$objDataObjectPool->delete('DEFAULT');
$objDataObjectPool->add('DEFAULT', $objNewDB->getAll());
}
<?php
namespace DDDBL;
$objDataObjectPool = new DataObjectPool('Result-Handler');
#################################
### handler for: SINGLE_VALUE ###
#################################
$cloSingleValueHandler = function (\DDDBL\Queue $objQueue) {
$arrResult = $objQueue->getState()->get('PDOStatement')->fetch();
$objQueue->getState()->update(array('result' => empty($arrResult) ? null : reset($arrResult)));
};
$objDataObjectPool->add('SINGLE_VALUE', array('HANDLER' => $cloSingleValueHandler));
###########################
### handler for: SINGLE ###
###########################
$cloSingleHandler = function (\DDDBL\Queue $objQueue) {
$arrResult = $objQueue->getState()->get('PDOStatement')->fetch();
$objQueue->getState()->update(array('result' => empty($arrResult) ? null : $arrResult));
};
$objDataObjectPool->add('SINGLE', array('HANDLER' => $cloSingleHandler));
##########################
### handler for: MULTI ###
##########################
$cloMultiHandler = function (\DDDBL\Queue $objQueue) {
$arrResult = $objQueue->getState()->get('PDOStatement')->fetchAll();
$objQueue->getState()->update(array('result' => empty($arrResult) ? array() : $arrResult));
};
$objDataObjectPool->add('MULTI', array('HANDLER' => $cloMultiHandler));
#########################
### handler for: LIST ###
/**
* @param $strFile - the file with definitions
* @param $strGroup - the group the definitions should be stored in
*
* @throws UnexpectedParameterTypeException - if the given file is not a string
* @throws UnexpectedParameterTypeException - if the given optional handler is not a callable
* @throws \Exception - if the given file is not a file or do not exists
* @throws \Exception - if the given file is not readable
*
* generic function to store all definitions in a given file
* in the specified group.
*
* if an additional handler is given, it is called AFTER the storage of the
* definition. when called it will get the reference to the DataObjectPool and the
* found definition as parameter.
*
**/
function storeDefinitionsFromFileInGroup($strFile, $strGroup, $cloAdditionalHandler = null)
{
if (!is_string($strGroup)) {
throw new UnexpectedParameterTypeException('string', $strGroup);
}
if (!is_null($cloAdditionalHandler) && !is_callable($cloAdditionalHandler)) {
throw new UnexpectedParameterTypeException('callable', $cloAdditionalHandler);
}
if (!is_file($strFile) || !file_exists($strFile)) {
throw new \Exception("given file is not a file or doesn't exists: {$strFile}");
}
if (!is_readable($strFile)) {
throw new \Exception("given file is not readable: {$strFile}");
}
$arrDefinitions = parse_ini_file($strFile, true);
$objDataObjectPool = new DataObjectPool($strGroup);
foreach ($arrDefinitions as $strDefinitionAlias => $arrDefinition) {
$objDataObjectPool->add($strDefinitionAlias, $arrDefinition);
if (!is_null($cloAdditionalHandler)) {
$cloAdditionalHandler($objDataObjectPool, $arrDefinition);
}
}
}
