joshwlewis

# app/validators/scss_format_validator.rb
class ScssFormatValidator < ActiveModel::EachValidator
  def validate_each(object, attribute, value)
    begin
      # Attempt to parse SCSS
      Sass::Engine.new(value, syntax: :scss).render
    rescue Exception => e
      # Add error if parsing fails
      object.errors.add(attribute, :invalid_scss, error: e.inspect)
    end

chaslemley

require "aws-sdk"

class Dynamo
  attr_accessor :attributes

  def initialize(hash)
    raise ArgumentError, "argument passed to .new must be a Hash" unless hash.is_a? Hash
    raise ArgumentError, "hash must contain key :#{self.class.hash_key}" unless hash.has_key? self.class.hash_key.to_sym
    raise ArgumentError, "hash must contain key :#{self.class.range_key}" unless self.class.has_range_key? && hash.has_key?(self.class.range_key.to_sym)
    @attributes = {}