1 files changed, 60 insertions, 0 deletions
diff --git a/app/graphql/resolvers/work_items_resolver.rb b/app/graphql/resolvers/work_items_resolver.rb
new file mode 100644
index 00000000000..1bc74131b9e
--- /dev/null
+++ b/app/graphql/resolvers/work_items_resolver.rb
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+module Resolvers
+  class WorkItemsResolver < BaseResolver
+    include SearchArguments
+    include LooksAhead
+
+    type Types::WorkItemType.connection_type, null: true
+
+    argument :iid, GraphQL::Types::String,
+             required: false,
+             description: 'IID of the issue. For example, "1".'
+    argument :iids, [GraphQL::Types::String],
+             required: false,
+             description: 'List of IIDs of work items. For example, `["1", "2"]`.'
+    argument :sort, Types::WorkItemSortEnum,
+             description: 'Sort work items by this criteria.',
+             required: false,
+             default_value: :created_desc
+    argument :state, Types::IssuableStateEnum,
+             required: false,
+             description: 'Current state of this work item.'
+    argument :types, [Types::IssueTypeEnum],
+             as: :issue_types,
+             description: 'Filter work items by the given work item types.',
+             required: false
+
+    def resolve_with_lookahead(**args)
+      # The project could have been loaded in batch by `BatchLoader`.
+      # At this point we need the `id` of the project to query for issues, so
+      # make sure it's loaded and not `nil` before continuing.
+      parent = object.respond_to?(:sync) ? object.sync : object
+      return WorkItem.none if parent.nil? || !parent.work_items_feature_flag_enabled?
+
+      args[:iids] ||= [args.delete(:iid)].compact if args[:iid]
+      args[:attempt_project_search_optimizations] = true if args[:search].present?
+
+      finder = ::WorkItems::WorkItemsFinder.new(current_user, args)
+
+      Gitlab::Graphql::Loaders::IssuableLoader.new(parent, finder).batching_find_all { |q| apply_lookahead(q) }
+    end
+
+    def ready?(**args)
+      validate_anonymous_search_access! if args[:search].present?
+
+      super
+    end
+
+    private
+
+    def unconditional_includes
+      [
+        {
+          project: [:project_feature, :group]
+        },
+        :author
+      ]
+    end
+  end
+end