How to save image url in database through carrierwave

Question

如何通过使用carrierwave将图像的url而不是图像名称保存在数据库中？

Answer 1

Assuming you have image as the field mounted in User model for carrierwave, just to get the url you could do

user = User.first
user.image.url

But if you definitely need an image url then you can add a new column image_url then you could add a after_save method in your model and update the field with the url.

# in user.rb
after_save do |user|
  user.update(image_url, user.image.url)
end