Add milestoneWildcardId to board issues graphQL endpoint

Changelog: added

app/graphql/resolvers/board_list_issues_resolver.rb

@@ -13,7 +13,10 @@ module Resolvers
     alias_method :list, :object
 
     def resolve(**args)
-      filter_params = item_filters(args[:filters]).merge(board_id: list.board.id, id: list.id)
+      filters = item_filters(args[:filters])
+      mutually_exclusive_milestone_args!(filters)
+
+      filter_params = filters.merge(board_id: list.board.id, id: list.id)
       service = ::Boards::Issues::ListService.new(list.board.resource_parent, context[:current_user], filter_params)
       pagination_connections = Gitlab::Graphql::Pagination::Keyset::Connection.new(service.execute)
 
@@ -26,5 +29,13 @@ module Resolvers
     def self.complexity_multiplier(args)
       0.005
     end
+
+    private
+
+    def mutually_exclusive_milestone_args!(filters)
+      if filters[:milestone_title] && filters[:milestone_wildcard_id]
+        raise ::Gitlab::Graphql::Errors::ArgumentError, 'Incompatible arguments: milestoneTitle, milestoneWildcardId.'
+      end
+    end
   end
 end

app/graphql/types/boards/board_issue_input_base_type.rb

@@ -24,6 +24,10 @@ module Types
                as: :issue_types,
                description: 'Filter by the given issue types.',
                required: false
+
+      argument :milestone_wildcard_id, ::Types::MilestoneWildcardIdEnum,
+               required: false,
+               description: 'Filter by milestone ID wildcard.'
     end
   end
 end

doc/api/graphql/reference/index.md

@@ -17414,6 +17414,7 @@ Field that are available while modifying the custom mapping attributes for an HT
 | <a id="boardissueinputiterationwildcardid"></a>`iterationWildcardId` | [`IterationWildcardId`](#iterationwildcardid) | Filter by iteration ID wildcard. |
 | <a id="boardissueinputlabelname"></a>`labelName` | [`[String]`](#string) | Filter by label name. |
 | <a id="boardissueinputmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Filter by milestone title. |
+| <a id="boardissueinputmilestonewildcardid"></a>`milestoneWildcardId` | [`MilestoneWildcardId`](#milestonewildcardid) | Filter by milestone ID wildcard. |
 | <a id="boardissueinputmyreactionemoji"></a>`myReactionEmoji` | [`String`](#string) | Filter by reaction emoji applied by the current user. Wildcard values "NONE" and "ANY" are supported. |
 | <a id="boardissueinputnot"></a>`not` | [`NegatedBoardIssueInput`](#negatedboardissueinput) | List of negated arguments. |
 | <a id="boardissueinputreleasetag"></a>`releaseTag` | [`String`](#string) | Filter by release tag. |
@@ -17594,6 +17595,7 @@ Represents an escalation rule.
 | <a id="negatedboardissueinputiterationwildcardid"></a>`iterationWildcardId` | [`NegatedIterationWildcardId`](#negatediterationwildcardid) | Filter by iteration ID wildcard. |
 | <a id="negatedboardissueinputlabelname"></a>`labelName` | [`[String]`](#string) | Filter by label name. |
 | <a id="negatedboardissueinputmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Filter by milestone title. |
+| <a id="negatedboardissueinputmilestonewildcardid"></a>`milestoneWildcardId` | [`MilestoneWildcardId`](#milestonewildcardid) | Filter by milestone ID wildcard. |
 | <a id="negatedboardissueinputmyreactionemoji"></a>`myReactionEmoji` | [`String`](#string) | Filter by reaction emoji applied by the current user. Wildcard values "NONE" and "ANY" are supported. |
 | <a id="negatedboardissueinputreleasetag"></a>`releaseTag` | [`String`](#string) | Filter by release tag. |
 | <a id="negatedboardissueinputtypes"></a>`types` | [`[IssueType!]`](#issuetype) | Filter by the given issue types. |

spec/graphql/resolvers/board_list_issues_resolver_spec.rb

@@ -17,11 +17,20 @@ RSpec.describe Resolvers::BoardListIssuesResolver do
 
     # auth is handled by the parent object
     context 'when authorized' do
-      let!(:issue1) { create(:issue, project: project, labels: [label], relative_position: 10) }
-      let!(:issue2) { create(:issue, project: project, labels: [label, label2], relative_position: 12) }
-      let!(:issue3) { create(:issue, project: project, labels: [label, label3], relative_position: 10) }
+      let!(:issue1) { create(:issue, project: project, labels: [label], relative_position: 10, milestone: started_milestone) }
+      let!(:issue2) { create(:issue, project: project, labels: [label, label2], relative_position: 12, milestone: started_milestone) }
+      let!(:issue3) { create(:issue, project: project, labels: [label, label3], relative_position: 10, milestone: future_milestone) }
       let!(:issue4) { create(:issue, project: project, labels: [label], relative_position: nil) }
 
+      let(:wildcard_started) { 'STARTED' }
+      let(:filters) { { milestone_title: ["started"], milestone_wildcard_id: wildcard_started } }
+
+      it 'raises a mutually exclusive filter error when milstone wildcard and title are provided' do
+        expect do
+          resolve_board_list_issues(args: { filters: filters })
+        end.to raise_error(Gitlab::Graphql::Errors::ArgumentError)
+      end
+
       it 'returns issues in the correct order with non-nil relative positions', :aggregate_failures do
         # by relative_position and then ID
         result = resolve_board_list_issues
@@ -36,6 +45,12 @@ RSpec.describe Resolvers::BoardListIssuesResolver do
         expect(result).to match_array([issue1, issue3, issue4])
       end
 
+      it 'finds only issues filtered by milestone wildcard' do
+        result = resolve_board_list_issues(args: { filters: { milestone_wildcard_id: wildcard_started } })
+
+        expect(result).to match_array([issue1, issue2])
+      end
+
       it 'finds only issues matching search param' do
         result = resolve_board_list_issues(args: { filters: { search: issue1.title } })
 
@@ -73,6 +88,9 @@ RSpec.describe Resolvers::BoardListIssuesResolver do
       let(:board_parent) { user_project }
       let(:project) { user_project }
 
+      let_it_be(:started_milestone) { create(:milestone, project: user_project, title: 'started milestone', start_date: 1.day.ago, due_date: 1.day.from_now) }
+      let_it_be(:future_milestone) { create(:milestone, project: user_project, title: 'future milestone', start_date: 1.day.from_now) }
+
       it_behaves_like 'group and project board list issues resolver'
     end
 
@@ -86,6 +104,9 @@ RSpec.describe Resolvers::BoardListIssuesResolver do
       let(:board_parent) { group }
       let!(:project) { create(:project, :private, group: group) }
 
+      let_it_be(:started_milestone) { create(:milestone, group: group, title: 'started milestone', start_date: 1.day.ago, due_date: 1.day.from_now) }
+      let_it_be(:future_milestone) { create(:milestone, group: group, title: 'future milestone', start_date: 1.day.from_now) }
+
       it_behaves_like 'group and project board list issues resolver'
     end
   end