Paperclip: How to store a picture in a Rails console?

问题

I tried storing a local image in a rails console.

Because I have many pictures in my local storage (I use crawler to download tons of pictures), I want to store them into a database, with the benefit of paperclip to do some image job, like thumbnail etc. If I use a webpage to save new pictures to database one by one, it will cost a lot of time. So I want to find a way in rails console (some code) that can batch save-picture-into-database.

回答1:

To further clarify @andrea's answer:

YourPaperclippedModelHere.new(:your_paperclip_field => File.new(path, "r"))

So if your model is called Image and your paperclip field is data:

Image.new(:data => File.new(path_to_your_file, "r"))

回答2:

If this is the model:

class User < ActiveRecord::Base
  has_attached_file :avatar
end

then the following should work from the console:

>> User.create(:avatar => File.open('/path/to/image.jpg', 'rb'))

回答3:

I dont know if it is what you want ... but to save an paperclip asset from console You could simple use a File instance . a.e.

Image.new :data=>File.new("/path/to/image.jpg","r")

回答4:

Late Answer but hopefully it will work for others. You need to include.

File.new("#{Rails.root}/public/images/default_avatar.png", "r")

来源：https://stackoverflow.com/questions/4680265/paperclip-how-to-store-a-picture-in-a-rails-console