method

download

v7.1.3.4 - Show latest stable - 0 notes - Class: Preview

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What's this?

download(&block) public

Downloads the file associated with this preview’s variant. If no block is given, the entire file is read into memory and returned. That’ll use a lot of RAM for very large files. If a block is given, then the download is streamed and yielded in chunks. Raises ActiveStorage::Preview::UnprocessedError if the preview has not been processed yet.

Show source

# File activestorage/app/models/active_storage/preview.rb, line 90
  def download(&block)
    if processed?
      variant.download(&block)
    else
      raise UnprocessedError
    end
  end

download

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