X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FCore%2FStorageManager.php;h=0a8b35ce24a844a62251db06735363fa5e1b7513;hb=c713c2bf622257dbecf223b5f58bf8a98dde9d65;hp=5c14fdbf3388646c954441b30d8aadce96ebe753;hpb=4d9d62bcdbcbccb72562f58332f230df70ead796;p=friendica.git

diff --git a/src/Core/StorageManager.php b/src/Core/StorageManager.php
index 5c14fdbf33..0a8b35ce24 100644
--- a/src/Core/StorageManager.php
+++ b/src/Core/StorageManager.php
@@ -2,8 +2,8 @@
 
 namespace Friendica\Core;
 
-use Friendica\Core\Config;
-
+use Friendica\Database\DBA;
+use Friendica\Model\Storage\IStorage;
 
 
 /**
@@ -23,7 +23,7 @@ class StorageManager
 
 	private static function setup()
 	{
-		if (count(self::$backends)==0) {
+		if (count(self::$backends) == 0) {
 			self::$backends = Config::get('storage', 'backends', self::$default_backends);
 		}
 	}
@@ -31,6 +31,7 @@ class StorageManager
 	/**
 	 * @brief Return current storage backend class
 	 * @return string
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 */
 	public static function getBackend()
 	{
@@ -52,12 +53,19 @@ class StorageManager
 	/**
 	 * @brief Set current storage backend class
 	 *
-	 * @param string  $class  Backend class name
+	 * @param string $class Backend class name
+	 * @return bool
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 */
 	public static function setBackend($class)
 	{
-		/// @todo Check that $class implements IStorage
+		if (!in_array('Friendica\Model\Storage\IStorage', class_implements($class))) {
+			return false;
+		}
+
 		Config::set('storage', 'class', $class);
+
+		return true;
 	}
 
 	/**
@@ -72,12 +80,12 @@ class StorageManager
 	}
 
 
-
 	/**
 	 * @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)
 	{
@@ -91,12 +99,81 @@ class StorageManager
 	/**
 	 * @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 up to 5000 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     $destination Storage class name
+	 * @param array|null $tables      Tables to look in for resources. Optional, defaults to ['photo', 'attach']
+	 * @param int        $limit       Limit of the process batch size, defaults to 5000
+	 * @return int Number of moved resources
+	 * @throws \Exception
+	 */
+	public static function move($destination, $tables = null, $limit = 5000)
+	{
+		if (empty($destination)) {
+			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
+			$resources = DBA::select(
+				$table, 
+				['id', 'data', 'backend-class', 'backend-ref'],
+				['`backend-class` IS NULL or `backend-class` != ?', $destination],
+				['limit' => $limit]
+			);
+
+			while ($resource = DBA::fetch($resources)) {
+				$id = $resource['id'];
+				$data = $resource['data'];
+				/** @var IStorage $backendClass */
+				$backendClass = $resource['backend-class'];
+				$backendRef = $resource['backend-ref'];
+				if (!empty($backendClass)) {
+					Logger::log("get data from old backend " . $backendClass . " : " . $backendRef);
+					$data = $backendClass::get($backendRef);
+				}
+
+				Logger::log("save data to new backend " . $destination);
+				/** @var IStorage $destination */
+				$ref = $destination::put($data);
+				Logger::log("saved data as " . $ref);
+
+				if ($ref !== '') {
+					Logger::log("update row");
+					if (DBA::update($table, ['backend-class' => $destination, 'backend-ref' => $ref, 'data' => ''], ['id' => $id])) {
+						if (!empty($backendClass)) {
+							Logger::log("delete data from old backend " . $backendClass . " : " . $backendRef);
+							$backendClass::delete($backendRef);
+						}
+						$moved++;
+					}
+				}
+			}
+
+			DBA::close($resources);
+		}
+
+		return $moved;
+	}
+}
+