Question

I have an array of hashes that looks like this:

user_array = [<#Hashie::Mash id="1" name="Ben">, <#Hashie::Mash id="2" name="Scott">, <#Hashie::Mash id="3" name="David">]

And I also have an array that contains IDs pulled from an external source:

freq_array = ["1","2","2","3","2","3"]

I need to use freq_array to order user_array, so that the user whose ID appears the most in freq_array is first in the user_array. So based on the above freq_array, user_array would be

user_array = [<#Hashie::Mash id="2" name="Scott">, <#Hashie::Mash id="3" name="David">, <#Hashie::Mash id="1" name="Ben">]

What is the best way to do this? Thanks for reading.

EDIT: I got the format of the user_array hashes wrong. Have corrected.

Answer 1

user_array.sort_by { |user| freq_array.count(user["id"]) * -1 }