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In https://github.com/rails/rails/pull/28676 the `#to_path` method was added to `ActionDispatch::Http::UploadedFile`. This broke usage with `IO.copy_stream`: source = ActionDispatch::Http::UploadedFile.new(...) IO.copy_stream(source, destination) # ~> TypeError: can't convert ActionDispatch::Http::UploadedFile to IO (ActionDispatch::Http::UploadedFile#to_io gives Tempfile) Normally `IO.copy_stream` just calls `#read` on the source object. However, when `#to_path` is defined, `IO.copy_stream` calls `#to_io` in order to retrieve the raw `File` object. In that case it trips up, because `ActionDispatch::Http::UploadedFile#to_io` returned a `Tempfile` object, which is not an `IO` subclass. We fix this by having `#to_io` return an actual `File` object. |
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| .. | ||
| abstract_controller | ||
| action_controller | ||
| action_dispatch | ||
| action_pack | ||
| abstract_controller.rb | ||
| action_controller.rb | ||
| action_dispatch.rb | ||
| action_pack.rb | ||