Question

I’m trying to write a method to store an image from a given url, inside a ruby worker. It comes along my Rails app in which I display the object image. Here is what I’ve come up with:

@message = Message.create!
my_uploader = PhotoUploader.new
photo = open(image_url)
@message[:photo] = my_uploader.store!(photo)
@message[:photo] = my_uploader.filename
@message.save!

the PhotoUploader:

def store_dir
  Rails.env.production? ? (primary_folder = "production") : (primary_folder = "test")
  "#{primary_folder}/media/#{model.id}" 
end

the Message class:

class Message < ActiveRecord::Base
  attr_accessible :content, :photo, :user_id
  mount_uploader :photo, PhotoUploader
end

The model.id returns an error in the storage path. The model is nil even after saving it, and the file is stored in #{primary_folder}/media

Answer 1

I think it’s that you’re not calling store! from the model, which is why model.id doesn’t work, because model is nil

This will probably do it for you:

@message = Message.create!
photo = open(image_url)
@message.photo = PhotoUploader.new
@message.photo.store!(photo)
@message.photo = @message.photo.filename
@message.save!

I tried this out in the rails console, and @message[:photo].store!(photo) gave the same error, but @message.photo.store!(photo) worked.