Add group contribution statistics page

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

CHANGELOG-EE

 v 8.3.0 (unreleased)
   - License information can now be retrieved via the API
   - Fix bug with negative approvals required
+  - Add group contribution statistics page 
 v 8.2.0
   - Invalidate stored jira password if the endpoint URL is changed

app/assets/javascripts/application.js.coffee

@@ -16,6 +16,7 @@
 #= require jquery.scrollTo
 #= require jquery.blockUI
 #= require jquery.turbolinks
+#= require jquery.tablesorter
 #= require turbolinks
 #= require autosave
 #= require bootstrap

app/assets/stylesheets/framework/tables.scss

@@ -7,7 +7,7 @@
 table {
   &.table {
     margin-bottom: $gl-padding;
-    
+
     .dropdown-menu a {
       text-decoration: none;
     }
@@ -35,6 +35,10 @@ table {
         font-weight: normal;
         font-size: 15px;
         border-bottom: 1px solid $border-color !important;
+
+        &.sortable {
+          cursor: pointer;
+        }
       }
       td {

app/controllers/groups/stats_controller.rb

+class Groups::StatsController < Groups::ApplicationController
+  before_action :group
+
+  layout 'group'
+
+  def show
+    @users = @group.users
+    @start_date = params[:start_date] || Date.today - 1.week
+    @events = Event.contributions.
+      where("created_at > ?", @start_date).
+      where(project_id: @group.projects)
+
+    @stats = {}
+
+    @stats[:merge_requests] = @users.map do |user|
+      @events.merge_requests.created.where(author_id: user).count
+    end
+
+    @stats[:issues] = @users.map do |user|
+      @events.issues.closed.where(author_id: user).count
+    end
+
+    @stats[:push] = @users.map do |user|
+      @events.code_push.where(author_id: user).count
+    end
+  end
+end

app/models/event.rb

@@ -50,6 +50,12 @@ class Event < ActiveRecord::Base
   scope :in_projects, ->(project_ids) { where(project_id: project_ids).recent }
   scope :with_associations, -> { includes(project: :namespace) }
   scope :for_milestone_id, ->(milestone_id) { where(target_type: "Milestone", target_id: milestone_id) }
+  scope :issues, -> { where(target_type: 'Issue') }
+  scope :merge_requests, -> { where(target_type: 'MergeRequest') }
+  scope :created, -> { where(action: CREATED) }
+  scope :closed, -> { where(action: CLOSED) }
+  scope :merged, -> { where(action: MERGED) }
+
   class << self
     def reset_event_cache_for(target)

app/views/groups/stats/show.html.haml

+- page_title "Statistics"
+- header_title group_title(@group, "Statistics", group_stats_path(@group))
+
+.gray-content-block
+  .pull-right
+    .dropdown.inline
+      %button.dropdown-toggle.btn{type: 'button', 'data-toggle' => 'dropdown'}
+        = icon('calendar-o')
+        %b.caret
+      %ul.dropdown-menu
+        %li
+          = link_to group_stats_path(@group, start_date: Date.today - 1.week) do
+            Last week
+        %li
+          = link_to group_stats_path(@group, start_date: Date.today - 1.month) do
+            Last month
+        %li
+          = link_to group_stats_path(@group, start_date: Date.today - 3.months) do
+            Last 3 months
+  .oneline
+    Contribution statistics for issues, merge requests and push events since #{@start_date}
+
+%h3 Push
+
+.row
+  .col-md-4
+    %ul
+      %li
+        = @events.code_push.count
+        times
+      %li
+        more than
+        = @events.code_push.map(&:commits_count).sum
+        commits
+      %li
+        by
+        = pluralize @events.code_push.pluck(:author_id).uniq.count, 'person'
+
+  .col-md-8
+    %div
+      %p.light Push events per group member
+      %canvas#push{height: 250}
+
+    :javascript
+      var data = {
+        labels : #{@users.map(&:name).to_json},
+        datasets : [
+          {
+            fillColor : "rgba(220,220,220,0.5)",
+            strokeColor : "rgba(220,220,220,1)",
+            barStrokeWidth: 1,
+            barValueSpacing: 1,
+            barDatasetSpacing: 1,
+            data : #{@stats[:push].to_json}
+          }
+        ]
+      }
+      var ctx = $("#push").get(0).getContext("2d");
+      new Chart(ctx).Bar(data,{"scaleOverlay": true, responsive: true, maintainAspectRatio: false});
+
+
+%h3 Merge Requests
+
+.row
+  .col-md-4
+    %ul
+      %li
+        = @events.merge_requests.created.count
+        created
+      %li
+        = @events.merge_requests.merged.count
+        accepted
+
+  .col-md-8
+    %div
+      %p.light Merge requests created per group member
+      %canvas#merge-requests{height: 250}
+
+    :javascript
+      var data = {
+        labels : #{@users.map(&:name).to_json},
+        datasets : [
+          {
+            fillColor : "rgba(220,220,220,0.5)",
+            strokeColor : "rgba(220,220,220,1)",
+            barStrokeWidth: 1,
+            barValueSpacing: 1,
+            barDatasetSpacing: 1,
+            data : #{@stats[:merge_requests].to_json}
+          }
+        ]
+      }
+      var ctx = $("#merge-requests").get(0).getContext("2d");
+      new Chart(ctx).Bar(data,{"scaleOverlay": true, responsive: true, maintainAspectRatio: false});
+
+%h3 Issues
+
+.row
+  .col-md-4
+    %ul
+      %li
+        = @events.issues.created.count
+        created
+      %li
+        = @events.issues.closed.pluck(:target_id).uniq.count
+        closed
+
+  .col-md-8
+    %div
+      %p.light Issues closed per group member
+      %canvas#issues{height: 250}
+
+    :javascript
+      var data = {
+        labels : #{@users.map(&:name).to_json},
+        datasets : [
+          {
+            fillColor : "rgba(220,220,220,0.5)",
+            strokeColor : "rgba(220,220,220,1)",
+            barStrokeWidth: 1,
+            barValueSpacing: 1,
+            barDatasetSpacing: 1,
+            data : #{@stats[:issues].to_json}
+          }
+        ]
+      }
+      var ctx = $("#issues").get(0).getContext("2d");
+      new Chart(ctx).Bar(data,{"scaleOverlay": true, responsive: true, maintainAspectRatio: false});
+
+.gray-content-block
+  .oneline
+    Contributions per group member
+
+.table-holder
+  %table.table.sortable-table#event-stats
+    %thead
+      %tr
+        %th.sortable
+          Name
+          = icon('sort')
+        %th.sortable
+          Pushed
+          = icon('sort')
+        %th.sortable
+          Opened issues
+          = icon('sort')
+        %th.sortable
+          Closed issues
+          = icon('sort')
+        %th.sortable
+          Opened MR
+          = icon('sort')
+        %th.sortable
+          Accepted MR
+          = icon('sort')
+        %th.sortable
+          Total Contributions
+          = icon('sort')
+    %tbody
+      - @users.each do |user|
+        %tr
+          %td
+            %strong
+              = link_to user.name, user
+            .light
+              @#{user.username}
+          %td= @events.code_push.where(author_id: user).count
+          %td= @events.issues.created.where(author_id: user).count
+          %td= @events.issues.closed.where(author_id: user).count
+          %td= @events.merge_requests.created.where(author_id: user).count
+          %td= @events.merge_requests.merged.where(author_id: user).count
+          %td= @events.where(author_id: user).count
+
+:javascript
+  $("#event-stats").tablesorter();

app/views/layouts/nav/_group.html.haml

@@ -38,6 +38,11 @@
         = icon('users fw')
         %span
           Members
+    = nav_link(controller: [:stats]) do
+      = link_to group_stats_path(@group), title: 'Stats', data: {placement: 'right'} do
+        = icon('table fw')
+        %span
+          Statistics
     - if can?(current_user, :admin_group, @group)
       = nav_link(html_options: { class: "separate-item" }) do
         = link_to edit_group_path(@group), title: 'Settings', data: {placement: 'right'} do

config/routes.rb

@@ -386,6 +386,7 @@ Rails.application.routes.draw do
     end
     scope module: :groups do
+      resource :stats, only: [:show]
       resource :ldap, only: [] do
         member do
           put :reset_access

features/group/statistics.feature

+Feature: Group Statistics
+  Background:
+    Given I sign in as "John Doe"
+    And "John Doe" is owner of group "Owned"
+
+  Scenario: I should see group "Owned" statistics page
+    When I visit group "Owned" page
+    And I click on group statistics
+    Then I should see group statistics page

features/steps/group/statistics.rb

+class Spinach::Features::GroupStatistics < Spinach::FeatureSteps
+  include SharedAuthentication
+  include SharedPaths
+  include SharedGroup
+  include SharedUser
+
+  step 'I click on group statistics' do
+    click_link 'Statistics'
+  end
+
+  step 'I should see group statistics page' do
+    expect(page).to have_content "Contribution statistics for issues, merge requests and push"
+  end
+end