public function getVariableFile($variableUri)
{
//distinguish QTI file from other "file" base type
$baseType = $this->getVariableBaseType($variableUri);
// https://bugs.php.net/bug.php?id=52623 ;
// if the constant for max buffering, mysqlnd or similar driver
// is being used without need to adapt buffer size as it is atutomatically adapted for all the data.
if (core_kernel_classes_DbWrapper::singleton()->getPlatForm()->getName() == 'mysql') {
if (defined("PDO::MYSQL_ATTR_MAX_BUFFER_SIZE")) {
$maxBuffer = is_int(ini_get('upload_max_filesize')) ? ini_get('upload_max_filesize') * 1.5 : 10485760;
core_kernel_classes_DbWrapper::singleton()->getSchemaManager()->setAttribute(\PDO::MYSQL_ATTR_MAX_BUFFER_SIZE, $maxBuffer);
}
}
switch ($baseType) {
case "file":
$value = $this->getVariableCandidateResponse($variableUri);
common_Logger::i(var_export(strlen($value), true));
$decodedFile = Datatypes::decodeFile($value);
common_Logger::i("FileName:");
common_Logger::i(var_export($decodedFile["name"], true));
common_Logger::i("Mime Type:");
common_Logger::i(var_export($decodedFile["mime"], true));
$file = array("data" => $decodedFile["data"], "mimetype" => "Content-type: " . $decodedFile["mime"], "filename" => $decodedFile["name"]);
break;
default:
//legacy files
$file = array("data" => $this->getVariableCandidateResponse($variableUri), "mimetype" => "Content-type: text/xml", "filename" => "trace.xml");
}
return $file;
}
/**
* Short description of method prepare
*
* @access public
* @author Joel Bout, <*****@*****.**>
* @param array resources results
* @param array columns variables
* @return mixed
*/
public function prepare($resources, $columns)
{
$resultsService = ResultsService::singleton();
/**
* @var \taoDelivery_models_classes_execution_DeliveryExecution $result
*/
foreach ($resources as $result) {
$itemresults = $resultsService->getVariables($result, false);
foreach ($itemresults as $itemResultUri => $vars) {
// cache the item information pertaining to a given itemResult (stable over time)
if (common_cache_FileCache::singleton()->has('itemResultItemCache' . $itemResultUri)) {
$itemUri = common_cache_FileCache::singleton()->get('itemResultItemCache' . $itemResultUri);
$object = new core_kernel_classes_Resource($itemUri);
} else {
$object = $resultsService->getItemFromItemResult($itemResultUri);
if (is_null($object)) {
$object = $resultsService->getVariableFromTest($itemResultUri);
}
if (!is_null($object)) {
common_cache_FileCache::singleton()->put($object->getUri(), 'itemResultItemCache' . $itemResultUri);
}
}
if (get_class($object) == "core_kernel_classes_Resource") {
$contextIdentifier = (string) $object->getUri();
} else {
if (!is_null($object)) {
$contextIdentifier = (string) $object->__toString();
}
}
foreach ($vars as $var) {
$var = $var[0];
// cache the variable data
/**
* @var \taoResultServer_models_classes_Variable $varData
*/
$varData = $var->variable;
if (common_cache_FileCache::singleton()->has('variableDataCache' . $var->uri . '_' . $varData->getIdentifier())) {
$varData = common_cache_FileCache::singleton()->get('variableDataCache' . $var->uri . '_' . $varData->getIdentifier());
} else {
common_cache_FileCache::singleton()->put($varData, 'variableDataCache' . $var->uri . '_' . $varData->getIdentifier());
}
if ($varData->getBaseType() === 'file') {
$decodedFile = Datatypes::decodeFile($varData->getValue());
$varData->setValue($decodedFile['name']);
}
$variableIdentifier = (string) $varData->getIdentifier();
foreach ($columns as $column) {
if ($variableIdentifier == $column->getIdentifier() and $contextIdentifier == $column->getContextIdentifier()) {
$epoch = $varData->getEpoch();
$readableTime = "";
if ($epoch != "") {
$readableTime = "@" . tao_helpers_Date::displayeDate(tao_helpers_Date::getTimeStamp($epoch), tao_helpers_Date::FORMAT_VERBOSE);
}
$this->cache[get_class($varData)][$result][$column->getContextIdentifier() . $variableIdentifier][(string) $epoch] = array($varData->getValue(), $readableTime);
}
}
}
}
}
}
/**
* Short description of method prepare
*
* @access public
* @author Joel Bout, <*****@*****.**>
* @param array resources results
* @param array columns variables
* @return mixed
*/
public function prepare($resources, $columns)
{
$resultsService = ResultsService::singleton();
foreach ($resources as $result) {
$itemresults = $resultsService->getVariables($result, false);
$cellData = array();
foreach ($itemresults as $itemResultUri => $vars) {
//cache the item information pertaining to a given itemResult (stable over time)
if (common_cache_FileCache::singleton()->has('itemResultItemCache' . tao_helpers_Uri::encode($itemResultUri))) {
$itemUri = common_cache_FileCache::singleton()->get('itemResultItemCache' . tao_helpers_Uri::encode($itemResultUri));
$object = new core_kernel_classes_Resource($itemUri);
} else {
$object = $resultsService->getItemFromItemResult($itemResultUri);
if (is_null($object)) {
$object = $resultsService->getVariableFromTest($itemResultUri);
}
if (!is_null($object)) {
common_cache_FileCache::singleton()->put($object->getUri(), 'itemResultItemCache' . tao_helpers_Uri::encode($itemResultUri));
}
}
if (get_class($object) == "core_kernel_classes_Resource") {
$contextIdentifier = (string) $object->getUri();
} else {
if (!is_null($object)) {
$contextIdentifier = (string) $object->__toString();
}
}
foreach ($vars as $var) {
$var = $var[0];
//cache the variable data
$varData = (array) $var->variable;
if (common_cache_FileCache::singleton()->has('variableDataCache' . $var->uri . '_' . $varData["identifier"])) {
$varData = common_cache_FileCache::singleton()->get('variableDataCache' . $var->uri . '_' . $varData["identifier"]);
} else {
$varData["class"] = $var->class;
common_cache_FileCache::singleton()->put($varData, 'variableDataCache' . $var->uri . '_' . $varData["identifier"]);
}
$type = $varData["class"];
if (isset($varData["value"])) {
if (is_array($varData["value"])) {
$varData["value"] = json_encode($varData["value"]);
}
} else {
$varData["value"] = $varData["candidateResponse"];
}
$varData["value"] = base64_decode($varData["value"]);
if ($varData["baseType"] === 'file') {
$decodedFile = Datatypes::decodeFile($varData['value']);
$varData['value'] = $decodedFile['name'];
}
$variableIdentifier = (string) $varData["identifier"];
foreach ($columns as $column) {
if ($variableIdentifier == $column->getIdentifier() and $contextIdentifier == $column->getContextIdentifier()) {
$value = (string) $varData["value"];
$epoch = $varData["epoch"];
$readableTime = "";
if ($epoch != "") {
$readableTime = "@" . tao_helpers_Date::displayeDate(tao_helpers_Date::getTimeStamp($epoch), tao_helpers_Date::FORMAT_VERBOSE);
}
$this->cache[$type][$result->getUri()][$column->getContextIdentifier() . $variableIdentifier][(string) $epoch] = array($value, $readableTime);
}
}
}
}
}
}
