用简单的表单显示完整的错误消息？

如何使用简单forms输出字段的完整错误消息？相当于rails：

例如显示：

 "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

如果有人仍然想知道现在有一种简单的方法可以做到这一点，如此处所述

只需在config/initializers/simple_form.rb将b.user :error更改为b.user :full_error ，现在您的错误消息将等同于RESOURCE.errors.full_messages

注意：如果您使用的是带简单forms的bootstrap，则更改simple_form_bootstrap.rb