FEATURE: category dropdown in admin reports

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

@@ -4,24 +4,26 @@ export default Ember.ObjectController.extend({
   viewingBarChart: Em.computed.equal('viewMode', 'barChart'),
   startDate: null,
   endDate: null,
+  categoryId: null,
   refreshing: false,
 
   actions: {
-    refreshReport: function() {
-      var self = this;
-      this.set('refreshing', true);
-      Discourse.Report.find(this.get('type'), this.get('startDate'), this.get('endDate')).then(function(r) {
-        self.set('model', r);
-      }).finally(function() {
-        self.set('refreshing', false);
-      });
+    refreshReport() {
+      this.set("refreshing", true);
+      Discourse.Report.find(
+        this.get("type"),
+        this.get("startDate"),
+        this.get("endDate"),
+        this.get("categoryId")
+      ).then(m => this.set("model", m)
+      ).finally(() => this.set("refreshing", false));
     },
 
-    viewAsTable: function() {
+    viewAsTable() {
       this.set('viewMode', 'table');
     },
 
-    viewAsBarChart: function() {
+    viewAsBarChart() {
       this.set('viewMode', 'barChart');
     }
   }

app/assets/javascripts/admin/models/report.js.es6

@@ -142,23 +142,24 @@ const Report = Discourse.Model.extend({
 });
 
 Report.reopenClass({
-  find: function(type, startDate, endDate) {
 
-    return Discourse.ajax("/admin/reports/" + type, {data: {
-      start_date: startDate,
-      end_date: endDate
-    }}).then(function (json) {
+  find(type, startDate, endDate, categoryId) {
+    return Discourse.ajax("/admin/reports/" + type, {
+      data: {
+        start_date: startDate,
+        end_date: endDate,
+        category_id: categoryId
+      }
+    }).then(json => {
       // Add a percent field to each tuple
-      var maxY = 0;
-      json.report.data.forEach(function (row) {
+      let maxY = 0;
+      json.report.data.forEach(row => {
         if (row.y > maxY) maxY = row.y;
       });
       if (maxY > 0) {
-        json.report.data.forEach(function (row) {
-          row.percentage = Math.round((row.y / maxY) * 100);
-        });
+        json.report.data.forEach(row => row.percentage = Math.round((row.y / maxY) * 100));
       }
-      var model = Discourse.Report.create({type: type});
+      const model = Discourse.Report.create({ type: type });
       model.setProperties(json.report);
       return model;
     });

app/assets/javascripts/admin/templates/reports.hbs

@@ -3,6 +3,7 @@
 <div>
   {{i18n 'admin.dashboard.reports.start_date'}} {{input type="date" value=startDate}}
   {{i18n 'admin.dashboard.reports.end_date'}} {{input type="date" value=endDate}}
+  {{category-chooser valueAttribute="id" value=categoryId source=categoryId}}
   {{d-button action="refreshReport" class="btn-primary" label="admin.dashboard.reports.refresh_report" icon="refresh"}}
 </div>