auto define methods on class from hash

homeboy.rb

class Homeboy
  def initialize( params={} )
    params.map do |kv|
      self.instance_variable_set("@#{kv[0]}", kv[1])
      self.class.send(:define_method, "#{kv[0]}") { kv[1] }
    end
  end

  def to_s
    instance_variables.map { |sym| "#{sym.to_s[1..-1]},#{self.send(sym.to_s[1..-1])}" }
  end
end


# -------------
# Usage

best_customer = Homeboy.new( { customer_first_name: 'bub', customer_email: '[email protected]' }  )
best_customer.customer_first_name

  ...

best_customer.to_s.map { |str| type( str.split(",").first, str.split(",").last ) }