public static function getUploadPointExtensions($uploadPointId)
{
if (in_array($uploadPointId, self::$uploadPointExtensionsCache)) {
return self::$uploadPointExtensionsCache[$uploadPointId];
}
$a = UploadPoint::with("fileType", "fileType.extensions")->findOrFail($uploadPointId);
$extensions = $a->fileType->getExtensionsArray();
// add to cache
self::$uploadPointExtensionsCache[$a->id] = $extensions;
return $extensions;
}
public static function register($uploadPointId, $fileId, File $fileToReplace = null)
{
$uploadPoint = UploadPoint::with("fileType", "fileType.extensions")->find($uploadPointId);
if (is_null($uploadPoint)) {
throw new Exception("Invalid upload point.");
}
if (!is_null($fileToReplace) && !is_null($fileId) && intval($fileToReplace->id, 10) === intval($fileId, 10)) {
// if we are replacing the file with the same file then nothing to do.
// just return the model
return $fileToReplace;
}
$file = null;
if (!is_null($fileId)) {
$fileId = intval($fileId, 10);
$file = File::with("uploadPoint")->find($fileId);
if (is_null($file)) {
throw new Exception("File model could not be found.");
} else {
if (is_null($file->uploadPoint)) {
throw new Exception("This file doesn't have an upload point. This probably means it was created externally and 'register' should not be used on it.");
} else {
if ($file->in_use) {
throw new Exception("This file has already been registered.");
} else {
if ($file->uploadPoint->id !== $uploadPoint->id) {
throw new Exception("Upload points don't match. This could happen if a file was uploaded at one upload point and now the file with that id is being registered somewhere else.");
}
}
}
}
}
if (!is_null($file)) {
$file->in_use = true;
// mark file as being in_use now
}
DB::transaction(function () use(&$file, &$fileToReplace) {
$oldIds = array();
// if the old file has old file ids that used to point to it then save them so they can be copied across
if (!is_null($fileToReplace)) {
$oldIds = $fileToReplace->oldFileIds()->get()->map(function ($a) {
return intval($a->old_file_id);
});
$oldIds[] = intval($fileToReplace->id);
}
// this must happen before new file is saved (after the old ids that pointed to this file have been retrieved)
// so that don't end up with duplicate old file ids
if (!is_null($fileToReplace)) {
self::delete($fileToReplace);
}
if (!is_null($file)) {
foreach ($oldIds as $a) {
$file->oldFileIds()->save(new OldFileId(array("old_file_id" => $a)));
}
if ($file->save() === false) {
throw new Exception("Error saving file model.");
}
}
});
return $file;
}
