/**
* Import a course using the specified XML filename. Returns no errors if it worked correctly.
*
* @param String $xmlFileName The name of the file to import.
* @return Array An array containing 'errors' with a list of errors, and 'course_id' of the newly created course ID.
*/
public static function importTrainingCourseFromXML($xmlFileName)
{
$errorList = array();
libxml_use_internal_errors(true);
$xml = simplexml_load_file($xmlFileName);
// Replaced with actual ID of newly created course.
$newCourseID = false;
// Error loading XML file, store errors and return them.
if (!$xml) {
foreach (libxml_get_errors() as $error) {
$errorList[] = sprintf(__('Line %d, Column %d, Error: %s', 'wp_courseware'), $error->line, $error->column, $error->message);
}
} else {
$import = new WPCW_Import($xml);
// At some point, might pass back errors from here.
$errorList = $import->importCourseIntoDatabase();
if (!$errorList) {
$newCourseID = $import->getNewCourseID();
}
}
// Return false if no errors, for easier error checking
if (count($errorList) == 0) {
$errorList = false;
}
// Return detials back to code for processing
return array('errors' => $errorList, 'course_id' => $newCourseID);
}
/**
* Handles the upload and import of the course file.
* @param Object $page The page object to show messages.
*/
function WPCW_courses_importCourseFromFile($page)
{
if (isset($_FILES['import_course_xml']['name'])) {
// See what type of file we're tring to upload
$type = strtolower($_FILES['import_course_xml']['type']);
$fileTypes = array('text/xml', 'application/xml');
if (!in_array($type, $fileTypes)) {
$page->showMessage(__('Unfortunately, you tried to upload a file that isn\'t XML.', 'wp_courseware'), true);
return false;
}
// Filetype is fine, carry on
$errornum = $_FILES['import_course_xml']['error'] + 0;
$tempfile = $_FILES['import_course_xml']['tmp_name'];
// File uploaded successfully?
if ($errornum == 0) {
// Try the import, return error/success here
$importResults = WPCW_Import::importTrainingCourseFromXML($tempfile);
if ($importResults['errors']) {
$page->showListOfErrors($importResults['errors'], __('Unfortunately, there were some errors trying to import the XML file.', 'wp_courseware'));
} else {
$message = __('The course was successfully imported.', 'wp_courseware') . '<br/><br/>';
$message .= sprintf(__('You can now <a href="%s">edit the Course Settings</a> or <a href="%s">edit the Unit & Module Ordering</a>.', 'wp_courseware'), admin_url('admin.php?page=WPCW_showPage_ModifyCourse&course_id=' . $importResults['course_id']), admin_url('admin.php?page=WPCW_showPage_CourseOrdering&course_id=' . $importResults['course_id']));
$page->showMessage($message);
}
} else {
switch ($errornum) {
case UPLOAD_ERR_FORM_SIZE:
case UPLOAD_ERR_INI_SIZE:
$page->showMessage(__("Unfortunately the file you've uploaded is too large for the system.", 'wp_courseware'), true);
break;
case UPLOAD_ERR_PARTIAL:
case UPLOAD_ERR_NO_FILE:
$page->showMessage(__("For some reason, the file you've uploaded didn't transfer correctly to the server. Please try again.", 'wp_courseware'), true);
break;
case UPLOAD_ERR_NO_TMP_DIR:
case UPLOAD_ERR_CANT_WRITE:
$page->showMessage(__("There appears to be an issue with your server, as the import file could not be stored in the temporary directory.", 'wp_courseware'), true);
break;
case UPLOAD_ERR_EXTENSION:
$page->showMessage(__('Unfortunately, you tried to upload a file that isn\'t XML.', 'wp_courseware'), true);
break;
}
}
}
}
