How can I restrict Paperclip to only accept images? I'm using Amazon S3 for storage if that's relevant. Thanks for reading.
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。
2 个解决方案
#1
13
Paperclip has validation methods like validates_attachment_presence, validates_attachment_content_type, and validates_attachment_size.
Paperclip具有验证方法，如validates_attachment_presence，validates_attachment_content_type和validates_attachment_size。
So all you need to do is pass mime types of images you'd like to have as attachments:
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'
#2
24
From https://makandracards.com/makandra/606-only-allow-pictures-as-paperclip-attachments
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)$/, :message => 'file type is not allowed (only jpeg/png/gif images)'
#1
13
Paperclip has validation methods like validates_attachment_presence, validates_attachment_content_type, and validates_attachment_size.
Paperclip具有验证方法，如validates_attachment_presence，validates_attachment_content_type和validates_attachment_size。
So all you need to do is pass mime types of images you'd like to have as attachments:
所以你需要做的就是传递你想要作为附件的mime类型的图像：
validates_attachment_content_type 'image/png', 'image/jpg'
#2
24
From https://makandracards.com/makandra/606-only-allow-pictures-as-paperclip-attachments
来自https://makandracards.com/makandra/606-only-allow-pictures-as-paperclip-attachments
validates_attachment_content_type :image, :content_type => /^image\/(jpg|jpeg|pjpeg|png|x-png|gif)$/, :message => 'file type is not allowed (only jpeg/png/gif images)'