Upload and delete files from Amazon S3

aws-s3.rb

def upload_to_s3(file, file_name,file_path)
  aws        = AWS::S3.new
  bucket     = aws.buckets[ENV['S3_BUCKET_NAME']]
  object     = bucket.objects[file_name]
  object.write(:file => file)
  local_file = File.open(file_path)
  File.delete(local_file)
end

def delete_from_s3
  aws        = AWS::S3.new
  bucket     = aws.buckets[ENV['S3_BUCKET_NAME']]
  file_name  = "#{self.member.get_full_name} Directive.pdf"
  object     = bucket.objects[file_name]
  object.delete
end

def read_from_s3(file_name)
  aws        = AWS::S3.new
  bucket     = aws.buckets[ENV['S3_BUCKET_NAME']]
  object     = bucket.objects[file_name]
  object.url_for(:read).to_s
end

def download_from_s3(file_name)
  aws        = AWS::S3.new
  bucket     = aws.buckets[ENV['S3_BUCKET_NAME']]
  file       = bucket.objects[file_name]
  url = file.url_for(:read).to_s
  data = open(url).read
  send_data data, :disposition => 'attachment', :filename => file_name, :x_sendfile => true
end