Show user id on profile pages to moderators and admins

app/views/users/show.html.erb

@@ -131,6 +131,10 @@
                 <% end -%>
               </dd>
             <% end -%>
+            <% if current_user&.moderator? || current_user&.administrator? %>
+              <dt class="list-inline-item m-0"><%= t ".uid" %></dt>
+              <dd class="list-inline-item"><%= link_to @user.id, api_user_path(:id => @user.id) %></dd>
+            <% end -%>
           </dl>
         </small>
       </div>

config/locales/en.yml

@@ -2697,6 +2697,7 @@ en:
       remove as friend: Unfriend
       add as friend: Add Friend
       mapper since: "Mapper since:"
+      uid: "User id:"
       ct status: "Contributor terms:"
       ct undecided: Undecided
       ct declined: Declined

test/controllers/users_controller_test.rb

@@ -495,6 +495,7 @@ class UsersControllerTest < ActionDispatch::IntegrationTest
       assert_select "a[href='/user/#{ERB::Util.u(user.display_name)}/blocks']", 0
       assert_select "a[href='/user/#{ERB::Util.u(user.display_name)}/blocks_by']", 0
       assert_select "a[href='/blocks/new/#{ERB::Util.u(user.display_name)}']", 0
+      assert_select "a[href='/api/0.6/user/#{ERB::Util.u(user.id)}']", 0
     end
 
     # Login as a moderator
@@ -512,6 +513,7 @@ class UsersControllerTest < ActionDispatch::IntegrationTest
       assert_select "a[href='/user/#{ERB::Util.u(user.display_name)}/blocks']", 0
       assert_select "a[href='/user/#{ERB::Util.u(user.display_name)}/blocks_by']", 0
       assert_select "a[href='/blocks/new/#{ERB::Util.u(user.display_name)}']", 1
+      assert_select "a[href='/api/0.6/user/#{ERB::Util.u(user.id)}']", 1
     end
   end