修正 Topic#reply_ids 会拉出所有回复 ID 列表的问题;

Author: huacnlee

app/models/topic.rb

@@ -157,7 +157,7 @@ def destroy
   # 所有的回复编号
   def reply_ids
     Rails.cache.fetch([self, 'reply_ids']) do
-      replies.only(:id).map(&:id).sort
+      self.replies.order('id asc').pluck(:id)
     end
   end
 

spec/models/topic_spec.rb

@@ -248,4 +248,13 @@
       expect(t.lock_node).to eq true
     end
   end
+
+  describe '.reply_ids' do
+    let(:t) { create(:topic) }
+    let!(:replies) { create_list(:reply, 10, topic: t) }
+
+    it 'should work' do
+      expect(t.reply_ids).to eq replies.collect(&:id)
+    end
+  end
 end