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February 13, 2016 17:11
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| list=["user1",user2"] | |
| list.each do |name| | |
| h=Hacker.find_by_username(name) | |
| m=Message.where(receiver_id: h.id) | |
| puts h.id,m | |
| end | |
| #it will output only hackerid's if nobody sent any messages, otherwise it will print list of messages too |
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