parse_yaml_string

# File activerecord/lib/active_record/fixtures.rb, line 749
    def parse_yaml_string(fixture_content)
      YAML::load(erb_render(fixture_content))
    rescue => error
      raise Fixture::FormatError, "a YAML error occurred parsing #{yaml_file_path}. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please have a look at http://www.yaml.org/faq.html\nThe exact error was:\n  #{error.class}: #{error}"
    end