Add search to group labels page [ci skip]

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

app/controllers/groups/labels_controller.rb

@@ -11,7 +11,7 @@ class Groups::LabelsController < Groups::ApplicationController
   def index
     respond_to do |format|
       format.html do
-        @labels = @group.labels.page(params[:page])
+        @labels = @available_labels.page(params[:page])
       end
       format.json do
         render json: LabelSerializer.new.represent_appearance(@available_labels)
@@ -113,7 +113,7 @@ class Groups::LabelsController < Groups::ApplicationController
         group_id: @group.id,
         only_group_labels: params[:only_group_labels],
         include_ancestor_groups: params[:include_ancestor_groups],
-        include_descendant_groups: params[:include_descendant_groups]
-      ).execute
+        include_descendant_groups: params[:include_descendant_groups],
+        search: params[:search]).execute
   end
 end

app/views/groups/labels/index.html.haml

 - page_title 'Labels'
 - can_admin_label = can?(current_user, :admin_label, @group)
+- hide = @available_labels.empty? || (params[:page].present? && params[:page] != '1')
 - issuables = ['issues', 'merge requests'] + (@group&.feature_available?(:epics) ? ['epics'] : [])
+- search = params[:search]
 
 - if can_admin_label
   - content_for(:header_content) do
     .nav-controls
       = link_to _('New label'), new_group_label_path(@group), class: "btn btn-new"
 
-- if @labels.exists?
+- if @labels.exists? || search.present?
   #promote-label-modal
   %div{ class: container_class }
     .top-area.adjust
       .nav-text
         = _('Labels can be applied to %{features}. Group labels are available for any project within the group.') % { features: issuables.to_sentence }
+      .nav-controls
+        = form_tag group_labels_path(@group), method: :get do
+          .input-group
+            = search_field_tag :search, params[:search], { placeholder: _('Filter'), id: 'label-search', class: 'form-control search-text-input input-short', spellcheck: false }
+            %span.input-group-append
+              %button.btn.btn-default{ type: "submit", "aria-label" => _('Submit search') }
+                = icon("search")
 
     .labels-container.prepend-top-5
-      .other-labels
-        %h5 Labels
-        %ul.content-list.manage-labels-list.js-other-labels
-          = render partial: 'shared/label', subject: @group, collection: @labels, as: :label, locals: { use_label_priority: false }
-          = paginate @labels, theme: 'gitlab'
+      - if @labels.any?
+        .other-labels
+          - if can_admin_label
+            %h5{ class: ('hide' if hide) } Labels
+          %ul.content-list.manage-labels-list.js-other-labels
+            = render partial: 'shared/label', subject: @group, collection: @labels, as: :label, locals: { use_label_priority: false }
+            = paginate @labels, theme: 'gitlab'
+      - elsif search.present?
+        .nothing-here-block
+          = _('No labels with such name or description')
 - else
   = render 'shared/empty_states/labels'
 

spec/features/groups/labels/search_labels_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'Search for labels', :js do
+  let(:user) { create(:user) }
+  let(:group) { create(:group) }
+  let!(:label1) { create(:group_label, title: 'Foo', description: 'Lorem ipsum', group: group) }
+  let!(:label2) { create(:group_label, title: 'Bar', description: 'Fusce consequat', group: group) }
+
+  before do
+    group.add_maintainer(user)
+    sign_in(user)
+
+    visit group_labels_path(group)
+  end
+
+  it 'searches for label by title' do
+    fill_in 'label-search', with: 'Bar'
+    find('#label-search').native.send_keys(:enter)
+
+    expect(page).to have_content(label2.title)
+    expect(page).to have_content(label2.description)
+    expect(page).not_to have_content(label1.title)
+    expect(page).not_to have_content(label1.description)
+  end
+
+  it 'searches for label by description' do
+    fill_in 'label-search', with: 'Lorem'
+    find('#label-search').native.send_keys(:enter)
+
+    expect(page).to have_content(label1.title)
+    expect(page).to have_content(label1.description)
+    expect(page).not_to have_content(label2.title)
+    expect(page).not_to have_content(label2.description)
+  end
+
+  it 'shows nothing found message' do
+    fill_in 'label-search', with: 'nonexistent'
+    find('#label-search').native.send_keys(:enter)
+
+    expect(page).to have_content('No labels with such name or description')
+    expect(page).not_to have_content(label1.title)
+    expect(page).not_to have_content(label1.description)
+    expect(page).not_to have_content(label2.title)
+    expect(page).not_to have_content(label2.description)
+  end
+end