fix delete repo will hang on postgres (#1044)

models/admin.go

@@ -55,27 +55,30 @@ func (n *Notice) TrStr() string {
 
 // CreateNotice creates new system notice.
 func CreateNotice(tp NoticeType, desc string) error {
-	// prevent panic if database connection is not available at this point
-	if x == nil {
-		return fmt.Errorf("Could not save notice due database connection not being available: %d %s", tp, desc)
-	}
+	return createNotice(x, tp, desc)
+}
 
+func createNotice(e Engine, tp NoticeType, desc string) error {
 	n := &Notice{
 		Type:        tp,
 		Description: desc,
 	}
-	_, err := x.Insert(n)
+	_, err := e.Insert(n)
 	return err
 }
 
 // CreateRepositoryNotice creates new system notice with type NoticeRepository.
 func CreateRepositoryNotice(desc string) error {
-	return CreateNotice(NoticeRepository, desc)
+	return createNotice(x, NoticeRepository, desc)
 }
 
 // RemoveAllWithNotice removes all directories in given path and
 // creates a system notice when error occurs.
 func RemoveAllWithNotice(title, path string) {
+	removeAllWithNotice(x, title, path)
+}
+
+func removeAllWithNotice(e Engine, title, path string) {
 	var err error
 	// workaround for Go not being able to remove read-only files/folders: https://github.com/golang/go/issues/9606
 	// this bug should be fixed on Go 1.7, so the workaround should be removed when Gogs don't support Go 1.6 anymore:
@@ -91,7 +94,7 @@ func RemoveAllWithNotice(title, path string) {
 	if err != nil {
 		desc := fmt.Sprintf("%s [%s]: %v", title, path, err)
 		log.Warn(desc)
-		if err = CreateRepositoryNotice(desc); err != nil {
+		if err = createNotice(e, NoticeRepository, desc); err != nil {
 			log.Error(4, "CreateRepositoryNotice: %v", err)
 		}
 	}