使用 Paperclip 进行条件验证困难 [英] Conditional Validation with Paperclip difficult

问题描述

我有一个项目"，它经历了一个多页的创建过程.图像在第五步上传，我使用属性完成"跟踪这些步骤.在验证图像是否附有回形针时，我在使用以下代码时遇到问题:

I have an "item", which goes through a multi-page creation process. Images are uploaded at step five, and I keep track of the steps by using the attribute "complete". When validating whether an image is attached with paperclip, I get problems using the code below:

validates_attachment_presence :pic1, :if => Proc.new { |u|  u.complete == "step5"}

似乎我无法访问完整"属性，因为活动记录对象似乎是回形针图像.有没有办法让我检查我在流程中的哪个点并有条件地验证?

It seems that I can't access the "complete" attribute, as the active-record object seems to be the paperclip image. Is there a way for me to check at which point in the process I am and validate conditionally?

谢谢，迈克尔

推荐答案

怎么样

validates_attachment_presence :pic1, :if => 'complete == "setp5"?'

或

validates_attachment_presence :pic1, :if => :is_step5?

def is_step5?
  self.complete == "step5"
end

这篇关于使用 Paperclip 进行条件验证困难的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！