Track page views for cycle analytics show page

This change adds a new counter 'cycle_analytics_views' to the usage data
metrics to count the page views for cycle analytics show page.

app/controllers/projects/cycle_analytics_controller.rb

@@ -14,8 +14,14 @@ class Projects::CycleAnalyticsController < Projects::ApplicationController
     @cycle_analytics_no_data = @cycle_analytics.no_stats?
     respond_to do |format|
-      format.html
-      format.json { render json: cycle_analytics_json }
+      format.html do
+        Gitlab::UsageDataCounters::CycleAnalyticsCounter.count(:views)
+
+        render :show
+      end
+      format.json do
+        render json: cycle_analytics_json
+      end
     end
   end

changelogs/unreleased/12502-add-view-stats-to-cycle-analytics.yml

+---
+title: Track page views for cycle analytics show page
+merge_request: 31717
+author:
+type: added

lib/gitlab/usage_data.rb

@@ -143,6 +143,7 @@ module Gitlab
          Gitlab::UsageDataCounters::NoteCounter,
          Gitlab::UsageDataCounters::SnippetCounter,
          Gitlab::UsageDataCounters::SearchCounter,
+         Gitlab::UsageDataCounters::CycleAnalyticsCounter,
          Gitlab::UsageDataCounters::SourceCodeCounter
         ]
       end

lib/gitlab/usage_data_counters/cycle_analytics_counter.rb

+# frozen_string_literal: true
+
+module Gitlab::UsageDataCounters
+  class CycleAnalyticsCounter < BaseCounter
+    KNOWN_EVENTS = %w[views].freeze
+    PREFIX = 'cycle_analytics'
+  end
+end

spec/controllers/projects/cycle_analytics_controller_spec.rb

@@ -11,6 +11,20 @@ describe Projects::CycleAnalyticsController do
     project.add_maintainer(user)
   end
+  context "counting page views for 'show'" do
+    it 'increases the counter' do
+      expect(Gitlab::UsageDataCounters::CycleAnalyticsCounter).to receive(:count).with(:views)
+
+      get(:show,
+          params: {
+            namespace_id: project.namespace,
+            project_id: project
+          })
+
+      expect(response).to be_success
+    end
+  end
+
   describe 'cycle analytics not set up flag' do
     context 'with no data' do
       it 'is true' do

spec/lib/gitlab/usage_data_counters/cycle_analytics_counter_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::UsageDataCounters::CycleAnalyticsCounter do
+  it_behaves_like 'a redis usage counter', 'CycleAnalytics', :views
+
+  it_behaves_like 'a redis usage counter with totals', :cycle_analytics, views: 3
+end

spec/lib/gitlab/usage_data_spec.rb

@@ -59,6 +59,7 @@ describe Gitlab::UsageData do
         avg_cycle_analytics
         influxdb_metrics_enabled
         prometheus_metrics_enabled
+        cycle_analytics_views
       ))
       expect(subject).to include(
@@ -72,6 +73,7 @@ describe Gitlab::UsageData do
         web_ide_commits: a_kind_of(Integer),
         web_ide_merge_requests: a_kind_of(Integer),
         navbar_searches: a_kind_of(Integer),
+        cycle_analytics_views: a_kind_of(Integer),
         source_code_pushes: a_kind_of(Integer)
       )
     end