Add "Starred projects" tab to user overview

app/assets/javascripts/pages/users/user_tabs.js

@@ -143,7 +143,7 @@ export default class UserTabs {
       this.loadOverviewTab();
     }
 
-    const loadableActions = ['groups', 'contributed', 'projects', 'snippets'];
+    const loadableActions = ['groups', 'contributed', 'projects', 'starred', 'snippets'];
     if (loadableActions.indexOf(action) > -1) {
       this.loadTab(action, endpoint);
     }

app/controllers/users_controller.rb

@@ -17,7 +17,7 @@ class UsersController < ApplicationController
   prepend_before_action(only: [:show]) { authenticate_sessionless_user!(:rss) }
   before_action :user, except: [:exists]
   before_action :authorize_read_user_profile!,
-                only: [:calendar, :calendar_activities, :groups, :projects, :contributed_projects, :snippets]
+                only: [:calendar, :calendar_activities, :groups, :projects, :contributed_projects, :starred_projects, :snippets]
 
   def show
     respond_to do |format|
@@ -82,6 +82,19 @@ class UsersController < ApplicationController
     end
   end
 
+  def starred
+    load_starred_projects
+
+    respond_to do |format|
+      format.html { render 'show' }
+      format.json do
+        render json: {
+          html: view_to_html_string("shared/projects/_list", projects: @starred_projects)
+        }
+      end
+    end
+  end
+
   def snippets
     load_snippets
 
@@ -120,6 +133,10 @@ class UsersController < ApplicationController
     ContributedProjectsFinder.new(user).execute(current_user)
   end
 
+  def starred_projects
+    StarredProjectsFinder.new(user).execute(current_user)
+  end
+
   def contributions_calendar
     @contributions_calendar ||= Gitlab::ContributionsCalendar.new(user, current_user)
   end
@@ -145,6 +162,12 @@ class UsersController < ApplicationController
     prepare_projects_for_rendering(@contributed_projects)
   end
 
+  def load_starred_projects
+    @starred_projects = starred_projects.joined(user)
+
+    prepare_projects_for_rendering(@starred_projects)
+  end
+
   def load_groups
     @groups = JoinedGroupsFinder.new(user).execute(current_user)
 

app/finders/starred_projects_finder.rb

+# frozen_string_literal: true
+
+class StarredProjectsFinder < UnionFinder
+  def initialize(user)
+    @user = user
+  end
+
+  # Finds the projects "@user" starred, limited to either public projects or
+  # projects visible to the given user.
+  #
+  # current_user - When given the list of the projects is limited to those only
+  #                visible by this user.
+  #
+  # Returns an ActiveRecord::Relation.
+  # rubocop: disable CodeReuse/ActiveRecord
+  def execute(current_user = nil)
+    segments = all_projects(current_user)
+
+    find_union(segments, Project).includes(:namespace).order_id_desc
+  end
+  # rubocop: enable CodeReuse/ActiveRecord
+
+  private
+
+  def all_projects(current_user)
+    projects = []
+
+    projects << @user.starred_projects.visible_to_user(current_user) if current_user
+    projects << @user.starred_projects.public_to_user(current_user)
+
+    projects
+  end
+end

app/helpers/users_helper.rb

@@ -89,7 +89,7 @@ module UsersHelper
     tabs = []
 
     if can?(current_user, :read_user_profile, @user)
-      tabs += [:overview, :activity, :groups, :contributed, :projects, :snippets]
+      tabs += [:overview, :activity, :groups, :contributed, :projects, :starred, :snippets]
     end
 
     tabs

app/views/users/show.html.haml

@@ -111,6 +111,10 @@
             %li.js-projects-tab
               = link_to user_projects_path, data: { target: 'div#projects', action: 'projects', toggle: 'tab', endpoint: user_projects_path(format: :json) } do
                 = s_('UserProfile|Personal projects')
+          - if profile_tab?(:starred)
+            %li.js-starred-tab
+              = link_to user_starred_projects_path, data: { target: 'div#starred', action: 'starred', toggle: 'tab', endpoint: user_starred_projects_path(format: :json) } do
+                = s_('UserProfile|Starred projects')
           - if profile_tab?(:snippets)
             %li.js-snippets-tab
               = link_to user_snippets_path, data: { target: 'div#snippets', action: 'snippets', toggle: 'tab', endpoint: user_snippets_path(format: :json) } do
@@ -142,6 +146,10 @@
         #projects.tab-pane
           -# This tab is always loaded via AJAX
 
+      - if profile_tab?(:starred)
+        #starred.tab-pane
+          -# This tab is always loaded via AJAX
+
       - if profile_tab?(:snippets)
         #snippets.tab-pane
           -# This tab is always loaded via AJAX

config/routes/user.rb

@@ -59,6 +59,7 @@ scope(constraints: { username: Gitlab::PathRegex.root_namespace_route_regex }) d
     get :groups
     get :projects
     get :contributed, as: :contributed_projects
+    get :starred, as: :starred_projects
     get :snippets
     get :exists
     get :activity