/**
* Receiving the three required CSVs, performs the importation of the data of a course: course info, enrolled users,
* and log info. The data is imported to a total of three different tables. All operations are done in a unique
* transaction: if something fails (a CSV does not respect the format, an importing course exists, etc.), nothing
* will be saved.
*
* After the importation, associates the just created historic course with the current course, and sets this course as
* active and personalizable, just in case it was marked as inactive and/or not personalizable.
*
* @param object $formdata The data submited in form.
* @param object $coursefile The CSV file with the information about the course.
* @param object $usersfile The CSV file with the information about the users enrolled in courses.
* @param object $logsfile The CSV file with the information about the log views of the users.
* @param int $currentcourseid The course id of the course for which the csv is being imported.
* @throws \Exception If something bad happened when trying to insert the data. The exception is thrown after doing the
* rollback.
*/
public static function import_data($formdata, $coursefile, $usersfile, $logsfile, $currentcourseid)
{
$db = new database_helper();
self::$lastinsertedcourses = 0;
self::$lastinsertedusers = 0;
self::$lastinsertedusers = 0;
$transaction = $db->start_transaction();
try {
$generatedcourseid = self::import_course($coursefile, $formdata, $db);
self::import_users($usersfile, $formdata, $generatedcourseid, $db);
self::import_logs($logsfile, $formdata, $generatedcourseid, $db);
$db->associate_current_course_with_historic($currentcourseid, $generatedcourseid);
$db->set_course_active($currentcourseid);
$db->set_course_personalizable($currentcourseid);
$db->commit_transaction($transaction);
} catch (\Exception $e) {
$db->rollback_transaction($transaction, $e);
throw $e;
}
}
