FIX: Don't show category options for reports that can't be scoped to a category.

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

@@ -4,7 +4,7 @@ import Report from 'admin/models/report';
 import computed from 'ember-addons/ember-computed-decorators';
 
 export default Ember.Controller.extend({
-  queryParams: ["mode", "start-date", "end-date", "category-id", "group-id"],
+  queryParams: ["mode", "start_date", "end_date", "category_id", "group_id"],
   viewMode: 'graph',
   viewingTable: Em.computed.equal('viewMode', 'table'),
   viewingGraph: Em.computed.equal('viewMode', 'graph'),
@@ -28,7 +28,15 @@ export default Ember.Controller.extend({
 
   @computed('model.type')
   showCategoryOptions(modelType) {
-    return !modelType.match(/_private_messages$/) && !modelType.match(/^page_view_/);
+    return [
+      'topics',
+      'posts',
+      'time_to_first_response_total',
+      'topics_with_no_response',
+      'flags',
+      'likes',
+      'bookmarks'
+    ].includes(modelType);
   },
 
   @computed('model.type')
@@ -42,13 +50,13 @@ export default Ember.Controller.extend({
       this.set("refreshing", true);
 
       this.setProperties({
-        'start-date': this.get('startDate'),
+        'start_date': this.get('startDate'),
-        'end-date': this.get('endDate'),
+        'end_date': this.get('endDate'),
-        'category-id': this.get('categoryId'),
+        'category_id': this.get('categoryId'),
       });
 
       if (this.get('groupId')){
-        this.set('group-id', this.get('groupId'));
+        this.set('group_id', this.get('groupId'));
       }
 
       q = Report.find(this.get("model.type"), this.get("startDate"), this.get("endDate"), this.get("categoryId"), this.get("groupId"));

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

@@ -7,11 +7,11 @@
   @module Discourse
 **/
 export default Discourse.Route.extend({
-  queryParams: { mode: {}, "start-date": {}, "end-date": {}, "category-id": {}, "group-id": {}},
+  queryParams: { mode: {}, "start_date": {}, "end_date": {}, "category_id": {}, "group_id": {} },
 
   model: function(params) {
     const Report = require('admin/models/report').default;
-    return Report.find(params.type, params['start-date'], params['end-date'], params['category-id'], params['group-id']);
+    return Report.find(params.type, params['start_date'], params['end_date'], params['category_id'], params['group_id']);
   },
 
   setupController: function(controller, model) {

app/controllers/admin/reports_controller.rb

@@ -9,7 +9,7 @@ class Admin::ReportsController < Admin::AdminController
 
     start_date = params[:start_date].present? ? Time.parse(params[:start_date]) : 30.days.ago
     end_date = params[:end_date].present? ? Time.parse(params[:end_date]) : start_date + 30.days
-    
+
     if params.has_key?(:category_id) && params[:category_id].to_i > 0
       category_id = params[:category_id].to_i
     else

app/models/report.rb

@@ -82,7 +82,6 @@ class Report
                                         .sum(:count)
   end
 
-
   def self.report_visits(report)
     basic_report_about report, UserVisit, :by_day, report.start_date, report.end_date, report.group_id
 

app/models/user.rb

@@ -740,7 +740,7 @@ class User < ActiveRecord::Base
     (tl_badge + other_badges).take(limit)
   end
 
-  def self.count_by_signup_date(start_date, end_date, group_id=nil)
+  def self.count_by_signup_date(start_date, end_date, group_id = nil)
     result = where('users.created_at >= ? AND users.created_at <= ?', start_date, end_date)
 
     if group_id

spec/controllers/admin/reports_controller_spec.rb

@@ -1,7 +1,6 @@
 require 'rails_helper'
 
 describe Admin::ReportsController do
-
   it "is a subclass of AdminController" do
     expect(Admin::ReportsController < Admin::AdminController).to eq(true)
   end
@@ -58,6 +57,46 @@ describe Admin::ReportsController do
 
       end
 
+      describe 'when report is scoped to a category' do
+        let(:category) { Fabricate(:category) }
+        let(:topic) { Fabricate(:topic, category: category) }
+        let(:other_topic) { Fabricate(:topic) }
+
+        it 'should render the report as JSON' do
+          topic
+          other_topic
+
+          xhr :get, :show, type: 'topics', category_id: category.id
+
+          expect(response).to be_success
+
+          report = JSON.parse(response.body)["report"]
+
+          expect(report["type"]).to eq('topics')
+          expect(report["data"].count).to eq(1)
+        end
+      end
+
+      describe 'when report is scoped to a group' do
+        let(:user) { Fabricate(:user) }
+        let(:other_user) { Fabricate(:user) }
+        let(:group) { Fabricate(:group) }
+
+        it 'should render the report as JSON' do
+          other_user
+          group.add(user)
+
+          xhr :get, :show, type: 'signups', group_id: group.id
+
+          expect(response).to be_success
+
+          report = JSON.parse(response.body)["report"]
+
+          expect(report["type"]).to eq('signups')
+          expect(report["data"].count).to eq(1)
+        end
+      end
+
     end
 
   end