Sync of the branch

app/models/concerns/attachable.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+module Attachable
+  extend ActiveSupport::Concern
+
+  included do
+    has_many_attached :attachments
+  end
+end

app/models/matching_request.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class MatchingRequest < ApplicationRecord
+  include Attachable
+
+  belongs_to :project
+end