namespace Friendica\Core;
-use Friendica\Core\Config;
-
+use Friendica\Database\DBA;
+use Friendica\Model\Storage\IStorage;
/**
/**
* @brief Return current storage backend class
* @return string
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function getBackend()
{
/**
* @brief Set current storage backend class
*
- * @param string $class Backend class name
+ * @param string $class Backend class name
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function setBackend($class)
{
}
-
/**
* @brief Register a storage backend class
*
- * @param string $name User readable backend name
- * @param string $class Backend class name
+ * @param string $name User readable backend name
+ * @param string $class Backend class name
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function register($name, $class)
{
/**
* @brief Unregister a storage backend class
*
- * @param string $name User readable backend name
+ * @param string $name User readable backend name
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
- public static function unregister($class)
+ public static function unregister($name)
{
self::setup();
unset(self::$backends[$name]);
Config::set('storage', 'backends', self::$backends);
}
-}
\ No newline at end of file
+
+
+ /**
+ * @brief Move resources to storage $dest
+ *
+ * Copy existing data to destination storage and delete from source.
+ * This method cannot move to legacy in-table `data` field.
+ *
+ * @param string $dest Destination storage class name
+ * @param array $tables Tables to look in for resources. Optional, defaults to ['photo', 'attach']
+ *
+ * @throws \Exception
+ * @return int Number of moved resources
+ */
+ public static function move($dest, $tables = null)
+ {
+ if (is_null($dest) || empty($dest)) {
+ throw new \Exception('Can\'t move to NULL storage backend');
+ }
+
+ if (is_null($tables)) {
+ $tables = ['photo', 'attach'];
+ }
+
+ $moved = 0;
+ foreach ($tables as $table) {
+ // Get the rows where backend class is not the destination backend class
+ $rr = DBA::select(
+ $table,
+ ['id', 'data', 'backend-class', 'backend-ref'],
+ ['`backend-class` IS NULL or `backend-class` != ?' , $dest ]
+ );
+
+ if (DBA::isResult($rr)) {
+ while($r = DBA::fetch($rr)) {
+ $id = $r['id'];
+ $data = $r['data'];
+ /** @var IStorage $backendClass */
+ $backendClass = $r['backend-class'];
+ $backendRef = $r['backend-ref'];
+ if (!is_null($backendClass) && $backendClass !== '') {
+ Logger::log("get data from old backend " . $backendClass . " : " . $backendRef);
+ $data = $backendClass::get($backendRef);
+ }
+
+ Logger::log("save data to new backend " . $dest);
+ /** @var IStorage $dest */
+ $ref = $dest::put($data);
+ Logger::log("saved data as " . $ref);
+
+ if ($ref !== '') {
+ Logger::log("update row");
+ $ru = DBA::update($table, ['backend-class' => $dest, 'backend-ref' => $ref, 'data' => ''], ['id' => $id]);
+
+ if ($ru) {
+ if (!is_null($backendClass) && $backendClass !== '') {
+ Logger::log("delete data from old backend " . $backendClass . " : " . $backendRef);
+ $backendClass::delete($backendRef);
+ }
+ $moved++;
+ }
+ }
+ }
+ }
+ }
+
+ return $moved;
+ }
+}
+