rails: carrierwave_upload

rails_carrierwave_upload.rb

# POST /pictures
# POST /pictures.json
def create

 #check if file is within picture_path
 if params[:picture][:picture_path]["file"]
      picture_path_params = params[:picture][:picture_path]
      #create a new tempfile named fileupload
      tempfile = Tempfile.new("fileupload")
      tempfile.binmode
      #get the file and decode it with base64 then write it to the tempfile
      tempfile.write(Base64.decode64(picture_path_params["file"]))

      #create a new uploaded file
      uploaded_file = ActionDispatch::Http::UploadedFile.new(:tempfile => tempfile, :filename => picture_path_params["filename"], :original_filename => picture_path_params["original_filename"])

      #replace picture_path with the new uploaded file
      params[:picture][:picture_path] =  uploaded_file

 end

 @picture = Picture.new(params[:picture])

 respond_to do |format|
   if @picture.save
     format.html { redirect_to @picture, notice: 'Picture was successfully created.' }
     format.json { render json: @picture, status: :created, location: @picture }
   else
     format.html { render action: "new" }
     format.json { render json: @picture.errors, status: :unprocessable_entity }
   end
 end
end

# picture {:user_id => "1", :folder_id => 1, etc., :picture_path {:file => "base64 awesomeness", :original_filename => "my file name", :filename => "my file name"}}