Attachments, ensure index of cardId exists

models/attachments.js

@@ -83,7 +83,7 @@ if (Meteor.isServer) {
   });
 
   Meteor.startup(() => {
-    Attachments.collection._ensureIndex({ cardId: 1 });
+    Attachments.collection._ensureIndex({ 'meta.cardId': 1 });
     const storagePath = Attachments.storagePath();
     console.log("Meteor.startup check storagePath: ", storagePath);
     if (!fs.existsSync(storagePath)) {

server/migrations.js

@@ -1276,3 +1276,7 @@ Migrations.add('migrate-avatars-collectionFS-to-ostrioFiles', () => {
     readStream.pipe(writeStream);
   });
 });
+
+Migrations.add('migrate-attachment-drop-index-cardId', () => {
+  Attachments.collection._dropIndex({'cardId': 1});
+});