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-rw-r--r--lib/private/files/cache/cache.php4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/private/files/cache/cache.php b/lib/private/files/cache/cache.php
index fc2d965d7f9..c1e5b34c8aa 100644
--- a/lib/private/files/cache/cache.php
+++ b/lib/private/files/cache/cache.php
@@ -64,6 +64,10 @@ class Cache {
* @return int
*/
public function getMimetypeId($mime) {
+ if (empty($mime)) {
+ // Can not insert empty string into Oracle NOT NULL column.
+ $mime = 'application/octet-stream';
+ }
if (empty(self::$mimetypeIds)) {
$this->loadMimetypes();
}