rails error en metodo

[Joe Fraddy]

Amigos, no estoy seguro si va aquí o en desarrollo web, pero allí va la pregunta sobre este error, en el que intento subir un archivo a un bucket S3 de amazon:

NoMethodError in UploadsController#create
undefined method `write' for #<Aws::S3::Object:0x007ff0981bb850>

Código (ruby) [Seleccionar] Expandir

    # Upload the file
    obj.write(
      file: params[:file],
      acl: :public_read
    )



Este es mi código:

Código (ruby) [Seleccionar] Expandir

class UploadsController < ApplicationController

  def new

  end

  def create

  # Make an object in your bucket for your upload
    obj = S3_BUCKET.object(params[:file].original_filename)

    # Upload the file
    obj.write(
      file: params[:file],
      acl: :public_read
    )
   
    # Create an object for the upload
    @upload = Upload.new(
url: obj.public_url,
name: obj.key
)
   
    # Save the upload
    if @upload.save
      redirect_to uploads_path, success: 'File successfully uploaded'
    else
      flash.now[:notice] = 'There was an error'
      render :new
    end
  end

  def index
  @uploads = Upload.all
  end
end


Estoy usando la versión 2 de aws-sdk, pero al parecer si está bien:

Porque esto es lo que me trae:

Código [Seleccionar] Expandir

Parameters:

{"utf8"=>"✓",
"authenticity_token"=>"KNpjxo3vZBXKpno9JVGJXu69fxBpwjNdfY8p1f9fleaaecfk3I7avRk42v5FqKwIqMS6puX2Qm9GJhrn5rCB+w==",
"file"=>
  #<ActionDispatch::Http::UploadedFile:0x007ff0a8030890
   @content_type="image/jpeg",
   @headers="Content-Disposition: form-data; name=\"file\"; filename=\"lake-louise-alberta.jpg\"\r\nContent-Type: image/jpeg\r\n",
   @original_filename="lake-louise-alberta.jpg",
   @tempfile=#<File:/tmp/RackMultipart20170815-9057-16b57sd.jpg>>,
"commit"=>"Upload file"}



Saludos!!