Progress on dms, code cleanup

Progress on dms, code cleanup

app/serializers/rest/chat_conversation_account_serializer.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+class REST::ChatConversationAccountSerializer < ActiveModel::Serializer
+  attributes :id, :is_hidden, :is_approved, :is_unread, :chat_conversation_id, :created_at
+
+  has_many :participant_accounts, key: :other_accounts, serializer: REST::AccountSerializer
+  has_one :last_chat_message, serializer: REST::ChatMessageSerializer, unless: :last_chat_message_id?
+
+  def id
+    object.id.to_s
+  end
+
+  def chat_conversation_id
+    object.chat_conversation_id.to_s
+  end
+
+  def last_chat_message_id?
+    object.last_chat_message_id.nil?
+  end
+
+end