eva1.rb

  def evaluate_email_template email_template
      expected_to_be_column = []
      model_column_names = []
      subject = email_template.subject.scan(/__.*?__/).map{|i| i.gsub(/__/,"").strip.downcase.tr(" ","_") }
      body = email_template.body.scan(/__.*?__/).map{|i| i.gsub(/__/,"").strip.downcase.tr(" ","_") }
      signature = email_template.signature.scan(/__.*?__/).map{|i| i.gsub(/__/,"").strip.downcase.tr(" ","_") }
      expected_to_be_column << subject if subject.present?
      expected_to_be_column << body if body.present?
      expected_to_be_column << signature if signature.present?
      expected_to_be_column = expected_to_be_column.flatten.uniq
      valid?(expected_to_be_column)
    end

    def valid?(attrs)
      instance = core.camelize.constantize.new
      arr = []
      attrs.each do |attr|
        arr << instance.respond_to?(attr.to_sym)
      end
      arr.all?
    end