I’m wondering the best way to solve this particular problem: I have a schema for file uploads (think of an asset manager). The database record stores the file size, the file name, and its location. I also have a Phoenix endpoint where one can stream that file, e.g. for use as a src in an <img> tag. The route is something like /download/:id.
My question is: how to add a field to the Ecto Schema where I can populate the download url? The schema struct already knows the ID of a record, so the only thing I need to do is to build the URL using one of the Phoenix route helpers. Would this require a custom type?
