在Ruby on Rails的，什么是创造，创造的区别！和API文档没有它？ [英] In Ruby on Rails, what's the difference between create and create! and API docs doesn't have it?

问题描述

ActiveRecord的有创建有的人用创造！ ...这是不是创造！可以抛出一个异常，而创建不？我找不到创造！的 目前Rails的API文档...

ActiveRecord has create and some people use create!... Is it that create! can raise an exception while create doesn't? I can't find create! in the current Rails API docs...

推荐答案

是创造！将提高对故障异常，创建刚刚返回false。文件位置：

Yes, create! will raise an exception on failure, create just returns false. Documentation here:

<一个href="http://api.rubyonrails.org/classes/ActiveRecord/Validations/ClassMethods.html#method-i-create-21">http://api.rubyonrails.org/classes/ActiveRecord/Validations/ClassMethods.html#method-i-create-21

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