carrierwave

I'm using active_admin and carrierwave gems. Have two simple models: class Image < ActiveRecord::Base attr_accessible :gallery_id, :file belongs_to :gallery mount_uploader :file, FileUploader end class Gallery < ActiveRecord::Base attr_accessible :description, :title, :file, :images_attributes has_many :images accepts_nested_attributes_for :images, allow_destroy: true mount_uploader :file, FileUploader end Now my active_admin form for Gallery looks like this: form do |f| f.inputs "Gallery" do f.input :title end f.has_many :images do |ff| ff.input :file end f.actions end Now I can upload one

I use CarrierWave to generate versions (thumbnails with different sizes) and also to add a watermark on each versions. I have currently manage to apply the watermark for each thumbnails but I would like to add it on the original image to. Here is what I tried: def watermark manipulate! do |img| watermark = Magick::Image.read(Rails.root.join('app/assets/images/watermark_512.png')).first img = img.composite(watermark, Magick::CenterGravity, Magick::OverCompositeOp) end end version :original do process :watermark end version :thumb_512 do process :resize_to_fit => [512, 512] process :watermark

Using Carrierwave with Rails 3.2.6. All fine, except I need to sort a table where some attachments are displayed by file size. I'm using S3 for storage with fog. Let's say I have a Carrierwave showing like this: <%= @project.attachment %> I am able to show the size of the file by using '.size' after the field name: <%= @project.attachment.size %> shows the file size in bytes, but as I need to use an order clause when getting the records from the database, I cannot sort on this. Is there any way to write the file size to a particular column in the database after it has been uploaded so I can

I can upload a file and save the file name in the database. But the file name doesn't appear when I edit. I'd like to: display the file name and the uploaded image when click "Edit" link in _article.html.erb. display the uploaded image in _article.html.erb. article.rb class Article < ActiveRecord::Base . . has_many :photos, dependent: :destroy accepts_nested_attributes_for :photos . . end photo.rb class Photo < ActiveRecord::Base belongs_to :article mount_uploader :image, ImageUploader validates :image, presence: true #validates :article_id, presence: true end .schema articles CREATE TABLE

I'm making a webapp with paid downloads, and I followed Carrierwave's guide for protecting uploads . Everything is working as expecting save one thing. Here's my current setup: Product File Uploader ... def store_dir "#{Rails.root}/downloads/#{model.product_id}/#{model.id}" end ... Routes get "/downloads/:product_id/:product_file_id/:filename", :controller => "products", action: "download", conditions: {method: :get} ProductsController def download product_file = ProductFile.find(params[:product_file_id]) name = File.basename(product_file.file.file.file) send_file "#{Rails.root}/downloads/#