ruby on rails - PaperClip 3.4: How to regenerate images is _original has been deleted? -


does know if possible tell paperclip use file other _original regenerate thumbnails from?

our _original files no longer available , want regenerate our thumbnails due style size change.

i'm not sure start looking on one.

alright, didn't test out extensively should work. assuming you're model defined as:

class image < activerecord::base   has_attached_file :attachment, styles: { small: "300x300>", large: "100x100>" } end

this script use open-uri treat urls file streams can pull large style url, update model , reprocess each image.

require 'open-uri'  image.find_each |image|   large_image = open(image.attachment.url(:large)) {|f| f.read }    image = large_image   image.reprocess! end

again, did basic testing , i'm not 100% image = assignment need more file stream, did test 1 image , seemed work. retained of existing image data , used large style when reprocessing of existing image , added original.

hope helps. luck.


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