paperclip

I then want to use Paperclip to have photos for each Listing. I added the appropriate code to the listings show.html.erb, the listing.rb model, the listings_controller.rb and the _form.html.erb partial. When I try uploading an image for the Listing I get this error: Paperclip::Error in ListingsController#update Listing model missing required attr_accessor for 'avatar_file_name' Line 44 of listings_controller: def update respond_to do |format| if @listing.update(listing_params) format.html { redirect_to @listing, notice: 'Listing was successfully updated.' } format.json { head :no_content }

I'm trying to upload a Dynamically generated file from Flex (PNG image) to Ruby on Rails Server back end using the following code (from Flex on Rails book): public function save():void { var bitmapData:BitmapData = new BitmapData(width, height); bitmapData.draw(this); var ba:ByteArray = (new PNGEncoder()).encode(bitmapData); var fileRef:FileReference = new FileReference(); //TODO: Remove HardCoding of URL here var request : URLRequest = new URLRequest("http://localhost:3000/doodles"); request.method = URLRequestMethod.POST; var boundary : String = "----------Ij5GI3GI3ei4GI3ei4KM7GI3KM7KM7";

Does anyone know of a way to copy files with Paperclip using S3 for storage? Before I try to write my own, I just wanted to make sure there wasn't already a way to do this. Thanks After some more messing around with paperclip, I figured it out. It's ridiculously simple to copy files! # Stupid example method that just copies a user's profile pic to another user. def copy_profile_picture(user_1, user_2) user_2.picture = user_1.picture user_2.save # Copied the picture and we're done! end This also works great with amazon s3. Sweet 来源： https://stackoverflow.com/questions/2739839/how-to-copy-a-file

Having a problem with a Paperclip upload in Rails 4 - failing on ForbiddenAttributesError (strong parameters validation). Have the latest paperclip gem and latest rails 4 gems. I have a model "Image" with an attached file "upload" in the model: has_attached_file :upload, :styles => { :review => ["1000x1200>", :png], :thumb => ["100x100>", :png]}, :default_url => "/images/:style/missing.png" The image model was created with a scaffold, and I added paperclip migrations. The form partial was updated to use f.file_field :upload the form generates what appears to be a typical set of paperclip

I'm trying to configure Paperclip to provide different missing images based on the instance's category attribute. Every category of the object has its own missing image. This is my first take: EDIT to add full models: class Service < ActiveRecord::Base attr_accessible :logo, :logo_file_name, :logo_content_type, :logo_file_size, :logo_updated_at belongs_to :category, :counter_cache => true has_attached_file :logo, :path => "/:id-:style-:filename", :url => ":s3_eu_url", :default_url => "/logos/:style/#{self.category.name]}.png", :styles => { :large => "600x400>", :medium => "300x200>", :small =>