fix shared storage numeric id

Signed-off-by: Robin Appelman <robin@icewind.nl>

apps/files_sharing/lib/Cache.php

@@ -51,6 +51,8 @@ class Cache extends CacheJail {
 
 	private $ownerDisplayName;
 
+	private $numericId;
+
 	/**
 	 * @param \OCA\Files_Sharing\SharedStorage $storage
 	 * @param ICacheEntry $sourceRootInfo
@@ -58,6 +60,7 @@ class Cache extends CacheJail {
 	public function __construct($storage, ICacheEntry $sourceRootInfo) {
 		$this->storage = $storage;
 		$this->sourceRootInfo = $sourceRootInfo;
+		$this->numericId = $sourceRootInfo->getStorageId();
 		parent::__construct(
 			null,
 			$this->sourceRootInfo->getPath()

apps/files_sharing/lib/SharedStorage.php

@@ -337,6 +337,11 @@ class SharedStorage extends \OC\Files\Storage\Wrapper\Jail implements ISharedSto
 		return $this->superShare->getNodeType();
 	}
 
+	/**
+	 * @param string $path
+	 * @param null $storage
+	 * @return Cache
+	 */
 	public function getCache($path = '', $storage = null) {
 		if ($this->cache) {
 			return $this->cache;

apps/files_sharing/tests/CacheTest.php

@@ -30,6 +30,8 @@
 
 namespace OCA\Files_Sharing\Tests;
 
+use OCA\Files_Sharing\SharedStorage;
+
 /**
  * Class CacheTest
  *
@@ -545,6 +547,7 @@ class CacheTest extends TestCase {
 
 		self::loginHelper(self::TEST_FILES_SHARING_API_USER2);
 		$this->assertTrue(\OC\Files\Filesystem::file_exists('/foo'));
+		/** @var SharedStorage $sharedStorage */
 		list($sharedStorage) = \OC\Files\Filesystem::resolvePath('/' . self::TEST_FILES_SHARING_API_USER2 . '/files/foo');
 
 		$this->assertEquals($sourceStorage->getCache()->getNumericStorageId(), $sharedStorage->getCache()->getNumericStorageId());