From 4d663d2e595b64e6bf1979eccc701d0f3d55d797 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Tue, 16 Feb 2021 14:49:38 +0100
Subject: synchronous schema rollback

---
 packages/idb-bridge/src/MemoryBackend.ts | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'packages/idb-bridge/src/MemoryBackend.ts')

diff --git a/packages/idb-bridge/src/MemoryBackend.ts b/packages/idb-bridge/src/MemoryBackend.ts
index 7107756a0..4fdcf257c 100644
--- a/packages/idb-bridge/src/MemoryBackend.ts
+++ b/packages/idb-bridge/src/MemoryBackend.ts
@@ -579,9 +579,33 @@ export class MemoryBackend implements Backend {
     if (!db) {
       throw Error("db not found");
     }
+    return db.committedSchema;
+  }
+
+  getCurrentTransactionSchema(btx: DatabaseTransaction): Schema {
+    const myConn = this.connectionsByTransaction[btx.transactionCookie];
+    if (!myConn) {
+      throw Error("unknown connection");
+    }
+    const db = this.databases[myConn.dbName];
+    if (!db) {
+      throw Error("db not found");
+    }
     return myConn.modifiedSchema;
   }
 
+  getInitialTransactionSchema(btx: DatabaseTransaction): Schema {
+    const myConn = this.connectionsByTransaction[btx.transactionCookie];
+    if (!myConn) {
+      throw Error("unknown connection");
+    }
+    const db = this.databases[myConn.dbName];
+    if (!db) {
+      throw Error("db not found");
+    }
+    return db.committedSchema;
+  }
+
   renameIndex(
     btx: DatabaseTransaction,
     objectStoreName: string,
-- 
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