Refactor: replace angular $q by native Promise.

src/datasource-zabbix/datasource.js

@@ -14,7 +14,7 @@ import {ZabbixAPIError} from './zabbixAPICore.service.js';
 class ZabbixAPIDatasource {
 
   /** @ngInject */
-  constructor(instanceSettings, $q, templateSrv, alertSrv, zabbixAPIService, ZabbixCachingProxy, QueryBuilder) {
+  constructor(instanceSettings, templateSrv, alertSrv, zabbixAPIService, ZabbixCachingProxy, QueryBuilder) {
 
     // General data source settings
     this.name             = instanceSettings.name;
@@ -45,7 +45,6 @@ class ZabbixAPIDatasource {
     this.queryBuilder = new QueryBuilder(this.zabbixCache);
 
     // Dependencies
-    this.q = $q;
     this.templateSrv = templateSrv;
     this.alertSrv = alertSrv;
 
@@ -129,7 +128,7 @@ class ZabbixAPIDatasource {
     });
 
     // Data for panel (all targets)
-    return this.q.all(_.flatten(promises))
+    return Promise.all(_.flatten(promises))
       .then(_.flatten)
       .then(timeseries_data => {
 
@@ -245,7 +244,7 @@ class ZabbixAPIDatasource {
               });
             });
         } else {
-          return this.q.when([]);
+          return Promise.resolve([]);
         }
       });
   }
@@ -318,18 +317,18 @@ class ZabbixAPIDatasource {
       if (template.app === '/.*/') {
         template.app = '';
       }
-      result = this.queryBuilder.getItems(template.group, template.host, template.app);
+      result = this.queryBuilder.getItems(template.group, template.host, template.app, template.item);
     } else if (parts.length === 3) {
       // Get applications
-      result = this.queryBuilder.getApps(template.group, template.host);
+      result = this.queryBuilder.getApps(template.group, template.host, template.app);
     } else if (parts.length === 2) {
       // Get hosts
-      result = this.queryBuilder.getHosts(template.group);
+      result = this.queryBuilder.getHosts(template.group, template.host);
     } else if (parts.length === 1) {
       // Get groups
       result = this.zabbixCache.getGroups(template.group);
     } else {
-      result = this.q.when([]);
+      result = Promise.resolve([]);
     }
 
     return result.then(metrics => {

src/datasource-zabbix/query.controller.js

@@ -13,7 +13,7 @@ import './css/query-editor.css!';
 export class ZabbixQueryController extends QueryCtrl {
 
   // ZabbixQueryCtrl constructor
-  constructor($scope, $injector, $rootScope, $sce, $q, templateSrv) {
+  constructor($scope, $injector, $rootScope, $sce, templateSrv) {
 
     // Call superclass constructor
     super($scope, $injector);
@@ -21,7 +21,6 @@ export class ZabbixQueryController extends QueryCtrl {
     this.zabbix = this.datasource.zabbixAPI;
     this.cache = this.datasource.zabbixCache;
     this.queryBuilder = this.datasource.queryBuilder;
-    this.$q = $q;
 
     // Use custom format for template variables
     this.replaceTemplateVars = this.datasource.replaceTemplateVars;
@@ -107,12 +106,13 @@ export class ZabbixQueryController extends QueryCtrl {
   }
 
   initFilters() {
-    var self = this;
-    var itemtype = self.editorModes[self.target.mode].value;
-    return this.$q.when(this.suggestGroups())
-      .then(() => {return self.suggestHosts();})
-      .then(() => {return self.suggestApps();})
-      .then(() => {return self.suggestItems(itemtype);});
+    let itemtype = this.editorModes[this.target.mode].value;
+    return Promise.all([
+      this.suggestGroups(),
+      this.suggestHosts(),
+      this.suggestApps(),
+      this.suggestItems(itemtype)
+    ]);
   }
 
   suggestGroups() {
@@ -303,7 +303,6 @@ export class ZabbixQueryController extends QueryCtrl {
       this.panelCtrl.refresh();
     }
   }
-
 }
 
 // Set templateUrl as static property

src/datasource-zabbix/specs/datasource_specs.js

@@ -17,14 +17,13 @@ describe('ZabbixDatasource', () => {
         trendsFrom: '7d'
       }
     };
-    ctx.$q = Q;
     ctx.templateSrv = {};
     ctx.alertSrv = {};
     ctx.zabbixAPIService   = () => {};
     ctx.ZabbixCachingProxy = () => {};
     ctx.queryBuilder     = () => {};
 
-    ctx.ds = new Datasource(ctx.instanceSettings, ctx.$q, ctx.templateSrv, ctx.alertSrv,
+    ctx.ds = new Datasource(ctx.instanceSettings, ctx.templateSrv, ctx.alertSrv,
                             ctx.zabbixAPIService, ctx.ZabbixCachingProxy, ctx.queryBuilder);
   });
 

src/datasource-zabbix/zabbixAPI.service.js

@@ -4,7 +4,7 @@ import * as utils from './utils';
 import './zabbixAPICore.service';
 
 /** @ngInject */
-function ZabbixAPIServiceFactory($q, alertSrv, zabbixAPICoreService) {
+function ZabbixAPIServiceFactory(alertSrv, zabbixAPICoreService) {
 
   /**
    * Zabbix API Wrapper.
@@ -28,7 +28,6 @@ function ZabbixAPIServiceFactory($q, alertSrv, zabbixAPICoreService) {
       this.loginErrorCount = 0;
       this.maxLoginAttempts = 3;
 
-      this.$q = $q;
       this.alertSrv = alertSrv;
       this.zabbixAPICore = zabbixAPICoreService;
 

src/datasource-zabbix/zabbixAPICore.service.js

@@ -7,8 +7,7 @@ import angular from 'angular';
 class ZabbixAPICoreService {
 
   /** @ngInject */
-  constructor($q, backendSrv) {
-    this.$q = $q;
+  constructor(backendSrv) {
     this.backendSrv = backendSrv;
   }
 

src/datasource-zabbix/zabbixCache.service.js

@@ -5,15 +5,13 @@ import _ from 'lodash';
 // Each datasource instance must initialize its own cache.
 
 /** @ngInject */
-function ZabbixCachingProxyFactory($q, $interval) {
+function ZabbixCachingProxyFactory($interval) {
 
   class ZabbixCachingProxy {
     constructor(zabbixAPI, ttl) {
       this.zabbixAPI = zabbixAPI;
       this.ttl = ttl;
 
-      this.$q = $q;
-
       // Internal objects for data storing
       this._groups        = undefined;
       this._hosts         = undefined;
@@ -110,34 +108,32 @@ function ZabbixCachingProxyFactory($q, $interval) {
     }
 
     getHistoryFromCache(items, time_from, time_till) {
-      var deferred  = this.$q.defer();
       var historyStorage = this.storage.history;
       var full_history;
-      var expired = _.filter(_.keyBy(items, 'itemid'), function(item, itemid) {
+      var expired = _.filter(_.keyBy(items, 'itemid'), (item, itemid) => {
         return !historyStorage[itemid];
       });
       if (expired.length) {
-        this.zabbixAPI.getHistory(expired, time_from, time_till).then(function(history) {
+        return this.zabbixAPI.getHistory(expired, time_from, time_till).then(function(history) {
           var grouped_history = _.groupBy(history, 'itemid');
-          _.forEach(expired, function(item) {
+          _.forEach(expired, item => {
             var itemid = item.itemid;
             historyStorage[itemid] = item;
             historyStorage[itemid].time_from = time_from;
             historyStorage[itemid].time_till = time_till;
             historyStorage[itemid].history = grouped_history[itemid];
           });
-          full_history = _.map(items, function(item) {
+          full_history = _.map(items, item => {
             return historyStorage[item.itemid].history;
           });
-          deferred.resolve(_.flatten(full_history, true));
+          return _.flatten(full_history, true);
         });
       } else {
         full_history = _.map(items, function(item) {
           return historyStorage[item.itemid].history;
         });
-        deferred.resolve(_.flatten(full_history, true));
+        return Promise.resolve(_.flatten(full_history, true));
       }
-      return deferred.promise;
     }
 
     getHistoryFromAPI(items, time_from, time_till) {

src/panel-triggers/editor.js

@@ -19,12 +19,11 @@ import '../datasource-zabbix/css/query-editor.css!';
 class TriggerPanelEditorCtrl {
 
   /** @ngInject */
-  constructor($scope, $rootScope, $q, uiSegmentSrv, datasourceSrv, templateSrv, popoverSrv) {
+  constructor($scope, $rootScope, uiSegmentSrv, datasourceSrv, templateSrv, popoverSrv) {
     $scope.editor = this;
     this.panelCtrl = $scope.ctrl;
     this.panel = this.panelCtrl.panel;
 
-    this.$q = $q;
     this.datasourceSrv = datasourceSrv;
     this.templateSrv = templateSrv;
     this.popoverSrv = popoverSrv;
@@ -83,11 +82,11 @@ class TriggerPanelEditorCtrl {
   }
 
   initFilters() {
-    var self = this;
-    return this.$q
-      .when(this.suggestGroups())
-      .then(() => {return self.suggestHosts();})
-      .then(() => {return self.suggestApps();});
+    return Promise.all([
+      this.suggestGroups(),
+      this.suggestHosts(),
+      this.suggestApps()
+    ]);
   }
 
   suggestGroups() {

src/panel-triggers/module.js

@@ -61,7 +61,7 @@ var defaultTimeFormat = "DD MMM YYYY HH:mm:ss";
 class TriggerPanelCtrl extends MetricsPanelCtrl {
 
   /** @ngInject */
-  constructor($scope, $injector, $q, $element, datasourceSrv, templateSrv, contextSrv) {
+  constructor($scope, $injector, $element, datasourceSrv, templateSrv, contextSrv) {
     super($scope, $injector);
     this.datasourceSrv = datasourceSrv;
     this.templateSrv = templateSrv;