Question

Hi i am little struggle to make this hash and sort it by created of and key , value pair.

Here is my code

 hash_answers = {}
 unless answers.blank?
  answers.each_with_index do |ans ,index|
    voted_up_users = ans.votes_up_by_all_users(ans)
    voted_down_users = ans.votes_down_by_all_users(ans)
    hash_answers[ans.id] = voted_up_users.count -voted_down_users.count #line one
    hash_answers[index+1] = ans.created_at # line 2
  end
end

if i have line 1 only in code not line 2 then this below code work fine for me

     @answers = hash_answers.sort_by { |key, value| value }.reverse

but i also want to sort it by craeted_at

How i can achive this or make hash in another way

Any help will be most appreciated

Thanks

Answer 1

Usually you can sort on a number of things by creating an array of these things and use that as your sort key:

@answers = hash_answers.sort_by { |k, v| [ v[:created_at], v[:count] }

This is dependent on having a sortable structure to start with. You’re jamming two entirely different things into the same hash. A better approach might be:

hash_answers[ans.id] = {
  :id => ans.id,
  :count => voted_up_users.count -voted_down_users.count,
  :created_at => ans.created_at
}

You can adjust the order of the elements in the array to sort in the correct order.