Merge pull request #1503 from slntopp/dev

Fix link and join update

pkg/graph/accounts.go

@@ -119,29 +119,41 @@ func (ctrl *AccountsController) Update(ctx context.Context, acc Account, patch m
 
 // Grant account access to namespace
 func (acc *Account) LinkNamespace(ctx context.Context, edge driver.Collection, ns Namespace, level access.Level, role string) error {
-	_, err := edge.CreateDocument(ctx, Access{
+	a := Access{
 		From:  acc.ID,
 		To:    ns.ID,
 		Level: level,
 		Role:  role,
 		DocumentMeta: driver.DocumentMeta{
 			Key: acc.Key + "-" + ns.Key,
 		},
-	})
+	}
+
+	if _, err := edge.UpdateDocument(ctx, a.DocumentMeta.Key, a); err == nil {
+		return nil
+	}
+
+	_, err := edge.CreateDocument(ctx, a)
 	return err
 }
 
 // Grant namespace access to account
 func (acc *Account) JoinNamespace(ctx context.Context, edge driver.Collection, ns Namespace, level access.Level, role string) error {
-	_, err := edge.CreateDocument(ctx, Access{
+	a := Access{
 		From:  ns.ID,
 		To:    acc.ID,
 		Level: level,
 		Role:  role,
 		DocumentMeta: driver.DocumentMeta{
 			Key: ns.Key + "-" + acc.Key,
 		},
-	})
+	}
+
+	if _, err := edge.UpdateDocument(ctx, a.DocumentMeta.Key, a); err == nil {
+		return nil
+	}
+
+	_, err := edge.CreateDocument(ctx, a)
 	return err
 }