Fixes #3050 - newly created users are only shown in the admin interface after reload

app/assets/javascripts/app/controllers/user.coffee

@@ -179,9 +179,21 @@ class User extends App.ControllerSubContent
         navupdate: '#users'
       genericObject: 'User'
       container: @el.closest('.content')
-      callback: @search
+      callback: @newUserAddedCallback
     )
 
+  # GitHub Issue #3050
+  # resets search input value to empty after new user added
+  # resets any active role tab
+  newUserAddedCallback: =>
+    @searchInput.val('')
+    @query = ''
+    @resetActiveTabs()
+    @search()
+
+  resetActiveTabs: ->
+    @$('.tab.active').removeClass('active')
+
   import: (e) ->
     e.preventDefault()
     new App.Import(

app/models/user/search.rb

@@ -91,6 +91,8 @@ returns
         # enable search only for agents and admins
         return [] if !search_preferences(current_user)
 
+        is_query = query.present? && query != '*'
+
         # lookup for roles of permission
         if params[:permissions].present?
           params[:role_ids] ||= []
@@ -99,7 +101,7 @@ returns
         end
 
         # try search index backend
-        if SearchIndexBackend.enabled?
+        if SearchIndexBackend.enabled? && is_query
           query_extension = {}
           if params[:role_ids].present?
             query_extension['bool'] ||= {}
@@ -162,12 +164,15 @@ returns
                       end
         end
 
-        statement.where(
-          '(users.firstname LIKE ? OR users.lastname LIKE ? OR users.email LIKE ? OR users.login LIKE ?) AND users.id != 1', "%#{query}%", "%#{query}%", "%#{query}%", "%#{query}%"
-        )
-        .order(Arel.sql(order_sql))
-        .offset(offset)
-        .limit(limit)
+        if is_query
+          statement = statement.where(
+            '(users.firstname LIKE ? OR users.lastname LIKE ? OR users.email LIKE ? OR users.login LIKE ?) AND users.id != 1', "%#{query}%", "%#{query}%", "%#{query}%", "%#{query}%"
+          )
+        end
+
+        statement.order(Arel.sql(order_sql))
+          .offset(offset)
+          .limit(limit)
       end
     end
   end

spec/requests/user_spec.rb

@@ -1434,6 +1434,37 @@ RSpec.describe 'User', type: :request do
     end
   end
 
+  describe 'GET /api/v1/users/search, checks ES Usage', searchindex: true, authenticated_as: :agent do
+    let!(:agent) { create(:agent) }
+
+    def make_request(params)
+      get '/api/v1/users/search', params: params, as: :json
+    end
+
+    before do
+      # create some users that can be found
+      create(:agent, firstname: 'Test-Agent1')
+      create(:agent, firstname: 'Test-Agent2')
+
+      configure_elasticsearch(rebuild: true)
+    end
+
+    it 'uses elasticsearch when query is non empty' do
+      # Check if ES is used
+      allow(SearchIndexBackend).to receive(:search)
+
+      make_request(query: 'Test')
+      expect(SearchIndexBackend).to have_received(:search)
+    end
+
+    it 'does not uses elasticsearch when query is empty' do
+      allow(SearchIndexBackend).to receive(:search)
+
+      make_request(query: '')
+      expect(SearchIndexBackend).not_to have_received(:search)
+    end
+  end
+
   describe 'POST /api/v1/users/avatar', authenticated_as: :user do
     let(:user) { create(:user) }
     let(:base64) { 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==' }

spec/system/manage/users_spec.rb

@@ -50,4 +50,27 @@ RSpec.describe 'Manage > Users', type: :system do
       expect(page).to have_text("Zammad looks like this for \"#{user.firstname} #{user.lastname}\"", wait: 10)
     end
   end
+
+  # Fixes GitHub Issue #3050 - Newly created users are only shown in the admin interface after reload
+  describe 'adding a new user', authenticated_as: -> { user } do
+    let(:user) { create(:admin) }
+
+    it 'newly added user is visible in the user list' do
+      visit '#manage/users'
+
+      within(:active_content) do
+        find('[data-type=new]').click
+
+        find('[name=firstname]').fill_in with: 'NewTestUserFirstName'
+        find('[name=lastname]').fill_in with: 'User'
+        find('span.label-text', text: 'Customer').first(:xpath, './/..').click
+
+        click '.js-submit'
+
+        expect(page).to have_css('table.user-list td', text: 'NewTestUserFirstName')
+      end
+
+    end
+
+  end
 end