triggers panel: update migrations

src/panel-triggers/migrations.js

@@ -1,19 +1,30 @@
+// Actual schema version
+const CURRENT_SCHEMA_VERSION = 3;
+
 export function migratePanelSchema(panel) {
   if (isEmptyPanel(panel)) {
     return panel;
   }
 
   const schemaVersion = getSchemaVersion(panel);
-  switch (schemaVersion) {
-    case 1:
-      panel.datasources = [panel.datasource];
-      panel.targets = {};
-      panel.targets[panel.datasources[0]] = panel.triggers;
+  panel.schemaVersion = CURRENT_SCHEMA_VERSION;
 
-      // delete old props
-      delete panel.triggers;
-      delete panel.datasource;
-      break;
+  if (schemaVersion < 2) {
+    panel.datasources = [panel.datasource];
+    panel.targets = {};
+    panel.targets[panel.datasources[0]] = panel.triggers;
+
+    // delete old props
+    delete panel.triggers;
+    delete panel.datasource;
+  }
+
+  if (schemaVersion < 3) {
+    // delete old props
+    delete panel.lastChangeField;
+    delete panel.ageField;
+    delete panel.infoField;
+    delete panel.scroll;
   }
 
   return panel;