Gem 图片上传 carrierwave+upyun 如何为每个文件生成独立名称?

siyang1982 · February 21, 2012 · Last by siyang1982 replied at February 21, 2012 · 3698 hits

开发上传组件,图片存在又拍云上:mongoid + carrierwave + upyun 遇到问题是又拍云上传同名文件会覆盖之前的,请问如何保证每个文件名都不同?

另外,在上传过程中 carrierwave, carrierwave-upyun, carrierwave-mongoid 这几个 gem 包分别扮演了什么角色?感觉用了 upyun 后 carrierwave 不需要了?

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