FEATURE: filter admin reports via user group

app/assets/javascripts/admin/controllers/admin-reports.js.es6

@@ -1,6 +1,7 @@
 import { exportEntity } from 'discourse/lib/export-csv';
 import { outputExportResult } from 'discourse/lib/export-result';
 import Report from 'admin/models/report';
+import computed from 'ember-addons/ember-computed-decorators';
 
 export default Ember.Controller.extend({
   viewMode: 'table',
@@ -9,22 +10,32 @@ export default Ember.Controller.extend({
   startDate: null,
   endDate: null,
   categoryId: null,
+  groupId: null,
   refreshing: false,
 
-  categoryOptions: function() {
-    var arr = [{name: I18n.t('category.all'), value: 'all'}];
-    return arr.concat( Discourse.Site.currentProp('sortedCategories').map(function(i) { return {name: i.get('name'), value: i.get('id') }; }) );
-  }.property(),
+  @computed()
+  categoryOptions() {
+    const arr = [{name: I18n.t('category.all'), value: 'all'}];
+    return arr.concat(Discourse.Site.currentProp('sortedCategories').map((i) => {return {name: i.get('name'), value: i.get('id')};}));
+  },
+
+  @computed()
+  groupOptions() {
+    const arr = [{name: I18n.t('admin.dashboard.reports.groups'), value: 'all'}];
+    return arr.concat(this.site.groups.map((i) => {return {name: i['name'], value: i['id']};}));
+  },
+
+  @computed('model.type')
+  showGroupOptions(modelType) {
+    return modelType === "visits" || modelType === "signups" || modelType === "profile_views";
+  },
 
   actions: {
     refreshReport() {
       var q;
       this.set("refreshing", true);
-      if (this.get('categoryId') === "all") {
-        q = Report.find(this.get("model.type"), this.get("startDate"), this.get("endDate"));
-      } else {
-        q = Report.find(this.get("model.type"), this.get("startDate"), this.get("endDate"), this.get("categoryId"));
-      }
+
+      q = Report.find(this.get("model.type"), this.get("startDate"), this.get("endDate"), this.get("categoryId"), this.get("groupId"));
       q.then(m => this.set("model", m)).finally(() => this.set("refreshing", false));
     },
 
@@ -41,7 +52,8 @@ export default Ember.Controller.extend({
         name: this.get("model.type"),
         start_date: this.get('startDate'),
         end_date: this.get('endDate'),
-        category_id: this.get('categoryId') === 'all' ? undefined : this.get('categoryId')
+        category_id: this.get('categoryId') === 'all' ? undefined : this.get('categoryId'),
+        group_id: this.get('groupId') === 'all' ? undefined : this.get('groupId')
       }).then(outputExportResult);
     }
   }