Remove feature flag board_search_optimization

- Update ListService to remove flag condition
- Update Specs

app/controllers/boards/issues_controller.rb

@@ -20,9 +20,6 @@ module Boards
     skip_before_action :authenticate_user!, only: [:index]
     before_action :validate_id_list, only: [:bulk_move]
     before_action :can_move_issues?, only: [:bulk_move]
-    before_action do
-      push_frontend_feature_flag(:board_search_optimization, board.group, default_enabled: true)
-    end
 
     def index
       list_service = Boards::Issues::ListService.new(board_parent, current_user, filter_params)

app/services/boards/issues/list_service.rb

@@ -12,7 +12,7 @@ module Boards
       def execute
         return fetch_issues.order_closed_date_desc if list&.closed?
 
-        fetch_issues.order_by_position_and_priority(with_cte: can_attempt_search_optimization?)
+        fetch_issues.order_by_position_and_priority(with_cte: params[:search].present?)
       end
 
       # rubocop: disable CodeReuse/ActiveRecord
@@ -91,7 +91,7 @@ module Boards
       end
 
       def set_attempt_search_optimizations
-        return unless can_attempt_search_optimization?
+        return unless params[:search].present?
 
         if board.group_board?
           params[:attempt_group_search_optimizations] = true
@@ -130,11 +130,6 @@ module Boards
       def board_group
         board.group_board? ? parent : parent.group
       end
-
-      def can_attempt_search_optimization?
-        params[:search].present? &&
-          Feature.enabled?(:board_search_optimization, board_group, default_enabled: true)
-      end
     end
   end
 end

ee/spec/controllers/boards/issues_controller_spec.rb

@@ -73,11 +73,6 @@ describe Boards::IssuesController do
         end
 
         context 'with search param' do
-          context 'when board_search_optimization is enabled' do
-            before do
-              stub_feature_flags(board_search_optimization: true)
-            end
-
           it 'returns matching issues using optimized search' do
             create(:labeled_issue, project: project_1, labels: [planning], title: 'Test Issue')
             create(:labeled_issue, project: project_1, labels: [planning], title: 'Sample Issue')
@@ -88,23 +83,6 @@ describe Boards::IssuesController do
             expect(json_response['issues'].length).to eq 1
           end
         end
-
-          context 'when board_search_optimization is disabled' do
-            before do
-              stub_feature_flags(board_search_optimization: false)
-            end
-
-            it 'returns empty result' do
-              create(:labeled_issue, project: project_1, labels: [planning], title: 'Test Issue')
-              create(:labeled_issue, project: project_1, labels: [planning], title: 'Sample Issue')
-
-              list_issues user: user, board: board, list: list1, search: 'Te'
-
-              expect(response).to match_response_schema('issues')
-              expect(json_response['issues'].length).to eq 0
-            end
-          end
-        end
       end
 
       context 'with invalid list id' do
@@ -131,11 +109,6 @@ describe Boards::IssuesController do
       end
 
       context 'with search param' do
-        context 'when board_search_optimization is enabled' do
-          before do
-            stub_feature_flags(board_search_optimization: true)
-          end
-
         it 'returns matching issues using optimized search' do
           create(:issue, project: project_1, title: 'Issue XI')
           create(:issue, project: project_1, title: 'Issue XX')
@@ -146,23 +119,6 @@ describe Boards::IssuesController do
           expect(json_response['issues'].length).to eq 1
         end
       end
-
-        context 'when board_search_optimization is disabled' do
-          before do
-            stub_feature_flags(board_search_optimization: false)
-          end
-
-          it 'returns empty result' do
-            create(:issue, project: project_1, title: 'Issue XI')
-            create(:issue, project: project_1, title: 'Issue XX')
-
-            list_issues user: user, board: board, search: 'XI'
-
-            expect(response).to match_response_schema('issues')
-            expect(json_response['issues'].length).to eq 0
-          end
-        end
-      end
     end
 
     context 'with unauthorized user' do

ee/spec/services/ee/boards/issues/list_service_spec.rb

@@ -153,21 +153,12 @@ describe Boards::Issues::ListService, services: true do
     end
 
     context 'when search param is present' do
-      shared_examples 'returns correct result using 3 characters' do
       it 'returns correct issues' do
         params = { board_id: board.id, search: 'Iss' }
 
         issues = described_class.new(parent, user, params).execute
         expect(issues).to contain_exactly(opened_issue1, opened_issue2, reopened_issue1)
       end
-      end
-
-      context 'when board_search_optimization feature is enabled' do
-        before do
-          stub_feature_flags(board_search_optimization: true)
-        end
-
-        it_behaves_like 'returns correct result using 3 characters'
 
       it 'returns correct issues using 2 characters' do
         params = { board_id: board.id, search: 'Is' }
@@ -176,21 +167,5 @@ describe Boards::Issues::ListService, services: true do
         expect(issues).to contain_exactly(opened_issue1, opened_issue2, reopened_issue1)
       end
     end
-
-      context 'when board_search_optimization feature is disabled' do
-        before do
-          stub_feature_flags(board_search_optimization: false)
-        end
-
-        it_behaves_like 'returns correct result using 3 characters'
-
-        it 'returns empty result using 2 characters' do
-          params = { board_id: board.id, search: 'Is' }
-
-          issues = described_class.new(parent, user, params).execute
-          expect(issues).to be_empty
-        end
-      end
-    end
   end
 end