I found a error in this video, (i don't know it's ok ) but, when you make an update in one picture, the old picture does not disappear in Amazon s3
I saw Dromezone but I need a plugin that I can use in one input form ,for example: One blog with multiple picture. In this case first I need creat the blog and then upload a picture.
if I would like to upload multiple images en this case (book)? Can you create tutorial using carrierwave + nested ?