a = FileType.to_csv
b = a.split(/\n/)
attributes = b.delete_at(0).split(',')
new_file_types = []
b.each do |value_row|
  values = value_row.scan( /([^",]+)|"([^"]+)"/ ).flatten.compact
  obj = FileType.new
  values.each_with_index do |val, index|
    obj[attributes[index]] = val
  end
  new_file_types << obj
end

FileType.delete_all

new_file_types.each(&:save)

    desc "Clear and populate the categories table"
    task categories: :environment do
      Category.delete_all
      ActiveRecord::Base.connection.reset_pk_sequence!("categories")
      categories = []

      rand(3..7).times do
        category_name = Faker::Lorem.words(rand(1..3)).join(" ").capitalize
        category_description = Faker::Lorem.paragraph[0..149]

        categories.push({ name: category_name, description: category_description })
      end

      Category.create!([categories])

      puts "Populated categories table"
    end

var baseModule = {
  prop1: {},
  prop2: 'some string',
  prop3: true,
...
}

(later in app.get middleware)

function doSomething(req, res, next) {
  req.module = _.clone(baseModule)
  req.module.prop1.foo = req.query.someParam; // = "bar"
  console.log(req.module.prop1); // {foo:bar} as expected
...

(still later on a completely different request)

function doSomethingElse(req, res, next) {
  req.module = _.clone(baseModule)
  req.module.prop1.buh = req.query.someParam; // = "sner"
  console.log(req.module.prop1); // {foo:bar, buh:sner} NOT as expected
...