I read here that Heroku doesn’t allow you to store photos on their server and that people use CarrierWave gem with Amazon to store photos. However, I just watched Ryan Bate’s Carrier Wave RailsCasts and he also mentions how CarrierWave has a remote url option whereby it will, in his words, “download” the photo from a URL and display it on your site. Does this mean that it stays on the remote server and just gets presented by CarrierWave on the Heroku site? I assume Carrier Wave’s not somehow attempting to transfer the image at the url to the new server?
Might be a stupid question but I don’t know a lot about servers (or anything :)))
the remote url option for CarrierWave gives the user a different way of providing the picture to your server: instead of uploading the picture file directly, the user may give a URL where the picture is (say, on a Flickr account, or something). When this is provided to the application using CarrierWave, the picture is downloaded from the third-party location (given by the url) to the application server — just as if the user had uploaded it directly — and then stored to Amazon’s S3.