1 files changed, 31 insertions, 0 deletions
diff --git a/app/graphql/types/notes/noteable_interface.rb b/app/graphql/types/notes/noteable_interface.rb
new file mode 100644
index 00000000000..bd22f12d6f0
--- /dev/null
+++ b/app/graphql/types/notes/noteable_interface.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module Types
+  module Notes
+    module NoteableInterface
+      include Types::BaseInterface
+
+      field :notes, Types::Notes::NoteType.connection_type, null: false, description: "All notes on this noteable."
+      field :discussions, Types::Notes::DiscussionType.connection_type, null: false, description: "All discussions on this noteable."
+
+      def self.resolve_type(object, context)
+        case object
+        when Issue
+          Types::IssueType
+        when MergeRequest
+          Types::MergeRequestType
+        when Snippet
+          Types::SnippetType
+        when ::DesignManagement::Design
+          Types::DesignManagement::DesignType
+        when ::AlertManagement::Alert
+          Types::AlertManagement::AlertType
+        else
+          raise "Unknown GraphQL type for #{object}"
+        end
+      end
+    end
+  end
+end
+
+Types::Notes::NoteableInterface.prepend_mod_with('Types::Notes::NoteableInterface')