Fixed host name displaying (not worked in Zabbix 3.0).

src/datasource-zabbix/zabbixAPI.service.js

@@ -313,7 +313,7 @@ function ZabbixAPIService($q, alertSrv, zabbixAPICoreService) {
           value: 1
         },
         selectGroups: ['name'],
-        selectHosts: ['name'],
+        selectHosts: ['name', 'host'],
         selectItems: ['name', 'key_', 'lastvalue'],
         selectLastEvent: 'extend'
       };

src/panel-triggers/module.js

@@ -122,6 +122,11 @@ class TriggerPanelCtrl extends MetricsPanelCtrl {
               }
               triggerObj.age = timestamp.fromNow(true);
 
+              // Set host that the trigger belongs
+              if (trigger.hosts.length) {
+                triggerObj.host = trigger.hosts[0].name;
+              }
+
               // Set color
               if (trigger.value === '1') {
                 triggerObj.color = self.panel.triggerSeverity[trigger.priority].color;