Ruby on rails 如何使用回形针克隆而无需重新粘贴 new\u image=UserImage.create（：upload=>images.upload）新建图片保存 self.user\u images_Ruby On Rails_Paperclip

Ruby on rails 如何使用回形针克隆而无需重新粘贴 new\u image=UserImage.create（：upload=>images.upload）新建图片保存 self.user\u images

ruby-on-rails

Ruby on rails 如何使用回形针克隆而无需重新粘贴 new\u image=UserImage.create（：upload=>images.upload）新建图片保存 self.user\u images,ruby-on-rails,paperclip,Ruby On Rails,Paperclip,您可以这样做 new_image = UserImage.create(:upload => images.upload) new_image.save self.user_images << new_image new_image = UserImage.create(:upload => images.upload) if new_image.save self.user_images = new_image.upload if new_image.upload

您可以这样做

new_image = UserImage.create(:upload => images.upload)
new_image.save
self.user_images << new_image

new_image = UserImage.create(:upload => images.upload)
if new_image.save
  self.user_images = new_image.upload if new_image.upload.exists?
end