如何使用简单形式输出字段的完整错误消息?相当于rails:<%= RESOURCE.errors.full_messages%>
例如显示这个:
"Email has already been taken","Password confirmation doesn't match Password","Password is too short (minimum is 8 characters)"
而不是:f.error_notification
"has already been taken","doesn't match Password","is too short (minimum is 8 characters)"
simple_form(3.0.2)/ Rails 4.1.1