From 268de33d96ef65d094259dc4862876d641e2879e Mon Sep 17 00:00:00 2001
From: Alexander Zobnin <alexanderzobnin@gmail.com>
Date: Sat, 29 Dec 2018 19:19:13 +0300
Subject: [PATCH] problems: limit events in timeline

---
 .../zabbix/connectors/zabbix_api/zabbixAPIConnector.js | 10 ++++++++--
 src/panel-triggers/triggers_panel_ctrl.js              |  3 ++-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/datasource-zabbix/zabbix/connectors/zabbix_api/zabbixAPIConnector.js b/src/datasource-zabbix/zabbix/connectors/zabbix_api/zabbixAPIConnector.js
index 8acb6c8..02b18f6 100644
--- a/src/datasource-zabbix/zabbix/connectors/zabbix_api/zabbixAPIConnector.js
+++ b/src/datasource-zabbix/zabbix/connectors/zabbix_api/zabbixAPIConnector.js
@@ -368,7 +368,7 @@ export class ZabbixAPIConnector {
     return this.request('trigger.get', params);
   }
 
-  getEvents(objectids, timeFrom, timeTo, showEvents) {
+  getEvents(objectids, timeFrom, timeTo, showEvents, limit) {
     var params = {
       output: 'extend',
       time_from: timeFrom,
@@ -376,9 +376,15 @@ export class ZabbixAPIConnector {
       objectids: objectids,
       select_acknowledges: 'extend',
       selectHosts: 'extend',
-      value: showEvents
+      value: showEvents,
     };
 
+    if (limit) {
+      params.limit = limit;
+      params.sortfield = 'clock';
+      params.sortorder = 'DESC';
+    }
+
     return this.request('event.get', params);
   }
 
diff --git a/src/panel-triggers/triggers_panel_ctrl.js b/src/panel-triggers/triggers_panel_ctrl.js
index d5ab7f2..68f3a2b 100644
--- a/src/panel-triggers/triggers_panel_ctrl.js
+++ b/src/panel-triggers/triggers_panel_ctrl.js
@@ -12,6 +12,7 @@ import {migratePanelSchema, CURRENT_SCHEMA_VERSION} from './migrations';
 import { ProblemList } from './components/Problems';
 
 const ZABBIX_DS_ID = 'alexanderzobnin-zabbix-datasource';
+const PROBLEM_EVENTS_LIMIT = 100;
 
 export const DEFAULT_TARGET = {
   group: {filter: ""},
@@ -470,7 +471,7 @@ export class TriggerPanelCtrl extends PanelCtrl {
     const timeTo = Math.ceil(dateMath.parse(this.range.to) / 1000);
     return this.datasourceSrv.get(trigger.datasource)
     .then(datasource => {
-      return datasource.zabbix.getEvents(triggerids, timeFrom, timeTo, [0, 1]);
+      return datasource.zabbix.getEvents(triggerids, timeFrom, timeTo, [0, 1], PROBLEM_EVENTS_LIMIT);
     });
   }