Script para eliminar el la la nota de la tarea con menor nota / Script to eliminate the homework with less score

homework_3_1.rb

require 'mongo'


@client =  Mongo::Connection.new('localhost',27017)
@db = @client['school']
@collection = @db['students']
@filter = Array.new

@collection.find().each do |student|
  hash = Hash.new

  puts student['_id']
  
  hash['id'] = student['_id']
  hash['scores'] = []
  
  student['scores'].each { |score| hash['scores'] << score['score'] if score['type'] == 'homework' }
  
  @filter << hash
end

@filter.each do |hash|
  @collection.update(
    {'_id' => hash['id']},
    {'$pull' => {'scores' => {'type' => 'homework', 'score' => hash['scores'].sort[0]}}}
    )
end