method
preview
v8.0.0 -
Show latest stable
- Class:
ActiveStorage::Attachment
preview(transformations)public
Returns an ActiveStorage::Preview instance for the attachment with the set of transformations provided. Example:
video.preview(resize_to_limit: [100, 100]).processed.url
or if you are using pre-defined variants:
video.preview(:thumb).processed.url
See ActiveStorage::Blob::Representable#preview for more information.
Raises an ArgumentError if transformations is a Symbol which is an unknown pre-defined variant of the attachment.
