From 0de6403be4b858b246e2898e0ed2ec10cc64d147 Mon Sep 17 00:00:00 2001
From: Alexander Zobnin <alexanderzobnin@gmail.com>
Date: Tue, 17 Nov 2020 18:23:38 +0300
Subject: [PATCH] Problems: fix empty query editor, #988

---
 src/panel-triggers/migrations.ts          | 12 ++++++++++++
 src/panel-triggers/triggers_panel_ctrl.ts |  1 +
 2 files changed, 13 insertions(+)

diff --git a/src/panel-triggers/migrations.ts b/src/panel-triggers/migrations.ts
index 770c249..054919a 100644
--- a/src/panel-triggers/migrations.ts
+++ b/src/panel-triggers/migrations.ts
@@ -24,6 +24,10 @@ export function getDefaultTargetOptions() {
 }
 
 export function migratePanelSchema(panel) {
+  if (isDefaultPanel(panel)) {
+    return panel;
+  }
+
   if (isEmptyPanel(panel)) {
     delete panel.targets;
     return panel;
@@ -160,6 +164,14 @@ function isEmptyTargets(targets) {
   return !targets || (_.isArray(targets) && (targets.length === 0 || targets.length === 1 && _.isEmpty(targets[0])));
 }
 
+function isDefaultPanel(panel) {
+  return panel.targets && panel.targets.length === 1 && isDefaultTarget(panel.targets[0]);
+}
+
+function isDefaultTarget(target) {
+  return !target.group?.filter && !target.host?.filter && !target.application?.filter && !target.trigger?.filter && !target.queryType;
+}
+
 function isEmptyTarget(target) {
   return !target || !(target.group && target.host && target.application && target.trigger);
 }
diff --git a/src/panel-triggers/triggers_panel_ctrl.ts b/src/panel-triggers/triggers_panel_ctrl.ts
index c96a264..2e57fcc 100644
--- a/src/panel-triggers/triggers_panel_ctrl.ts
+++ b/src/panel-triggers/triggers_panel_ctrl.ts
@@ -39,6 +39,7 @@ const DEFAULT_TIME_FORMAT = "DD MMM YYYY HH:mm:ss";
 
 export const PANEL_DEFAULTS = {
   schemaVersion: CURRENT_SCHEMA_VERSION,
+  targets: [{}],
   // Fields
   hostField: true,
   hostTechNameField: false,