Question

Can anyone Convert my Sql query into Rails Query???

SELECT DISTINCT conversation_cbgs.* FROM "conversation_cbgs" 
INNER JOIN "message_cbgs" 
ON "message_cbgs"."conversation_cbg_id" = "conversation_cbgs"."id"  
INNER JOIN "user_message_cbgs" 
ON "user_message_cbgs"."message_cbg_id" = "message_cbgs"."id" 
WHERE "user_message_cbgs"."user_id" = 1 
ORDER BY conversations_cbgs.updated_at DESC

Answer 1

Assuming you have your models built correctly – which would be helpful for those answering your questions, by the way – you would have something like:

Conversation.select("DISTINCT conversation_cbgs.*")
  .joins(:messages)
  .joins(:user_messages)
  .where("user_message_cbgs.user_id = ?", 1)
  .order("conversations_cbgs.updated_at DESC")

There are other ways using scopes and merges, etc. but you haven’t posted any models for us to show you.