如何限制Paperclip仅接受图像？

Question

如何限制Paperclip仅接受图像？如果相关,我正在使用Amazon S3进行存储.谢谢阅读.

Answer 1

来自https://makandracards.com/makandra/606-only-allow-pictures-as-paperclip-attachments

validates_attachment_content_type :image, :content_type => /^image\/(jpg|jpeg|pjpeg|png|x-png|gif)$/, :message => 'file type is not allowed (only jpeg/png/gif images)'

Answer 2

回形针已经验证方法,如validates_attachment_presence,validates_attachment_content_type和validates_attachment_size.

所以你需要做的就是传递你想要作为附件的mime类型的图像:

validates_attachment_content_type 'image/png', 'image/jpg'