什么是查询此信息的有效方法？ [RoR]

Question

Okay basically I'm trying to query the community_posts model and count the amount of posts where .community_topic_id is equal to community_topic which is a param. I was looking over the doc and I have a few ideas of how to do but, I want to make sure I'm doing it right as I have a few similar queries I'm writing for various other methods.

Hope this isn't too broad.. Not trying to ignite a "opinion war" I just want a way to do that wont turn out to be inefficient and force me to change my other queries.

Appreciate your help.

def topicreplycount(community_topic)
    "Code for query"
end

Answer 1

CommunityPost.count(community_topic_id: community_topic)