Fix DBOpenRequest.onupgradeneeded

[vchess.git] / client / src / utils / compgameStorage.js

diff --git a/client/src/utils/compgameStorage.js b/client/src/utils/compgameStorage.js
index a5c58af..a8bcaa2 100644 (file)
--- a/client/src/utils/compgameStorage.js
+++ b/client/src/utils/compgameStorage.js
@@ -27,7 +27,11 @@ function dbOperation(callback) {
 
   DBOpenRequest.onupgradeneeded = function(event) {
     let db = event.target.result;
-    db.createObjectStore("compgames", { keyPath: "vname" });
+    let upgradeTransaction = event.target.transaction;
+    if (!db.objectStoreNames.contains("compgames"))
+      db.createObjectStore("compgames", { keyPath: "vname" });
+    else
+      upgradeTransaction.objectStore("compgames");
   };
 }