method

download

v7.1.3.2 - Show latest stable - 0 notes - Class: Preview

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1
2.3.8
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1 (0)
6.1.7.7 (0)
7.0.0 (38)
7.1.3.2 (0)
7.1.3.4 (0)
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

Related methods