如何用Phoenix和Arc替换上传的图像？

Question

I use Arc to upload images - it's basic structure of uploader - I don't do any custom or fancy actions there - validate, transform or filename are all similar to the ones in example .

I want to replace my uploaded image and as I see in uploads folder, where I store them- everything is fine, but in my app as I check want to use url/2 like this:

Avatar.url({file, scope}, :thumb)

it returns me url to the old file and sometimes this old file is broken- rendered only partially. Using mix phoenix.server doesn't change the situation. Is there any weird cache? I could use nasty work-around to ensure that file thumb.png is deleted, whenever it exists, but is there any different way?

TL;DR : How to replace the uploaded image with the same name to make sure that new usage of url (provided by Arc.Storage.Local or Arc.Storage.S3) will work properly?

Answer 1

The easiest work around in this case for me was to name differently each new uploaded image. To do so I used additional field in schema which holds the logo_number (I didn't wanted to name it id) and ensure that all of old files are deleted with simple usage of File module functions - namely ls and rm! .