FEATURE: export dashboard reports to csv file

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

@@ -1,3 +1,6 @@
+import { exportEntity } from 'discourse/lib/export-csv';
+import { outputExportResult } from 'discourse/lib/export-result';
+
 export default Ember.Controller.extend({
   viewMode: 'table',
   viewingTable: Em.computed.equal('viewMode', 'table'),
@@ -30,6 +33,15 @@ export default Ember.Controller.extend({
 
     viewAsBarChart() {
       this.set('viewMode', 'barChart');
+    },
+
+    exportCsv() {
+      exportEntity('report', {
+        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')
+      }).then(outputExportResult);
     }
   }
 });

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

@@ -5,6 +5,7 @@
   {{i18n 'admin.dashboard.reports.end_date'}} {{input type="date" value=endDate}}
   {{combo-box valueAttribute="value" content=categoryOptions value=categoryId}}
   {{d-button action="refreshReport" class="btn-primary" label="admin.dashboard.reports.refresh_report" icon="refresh"}}
+  {{d-button action="exportCsv" label="admin.export_csv.button_text"}}
 </div>
 
 <div class='view-options'>