How to migrate data between datastores using Dragonfly

Question

Is it possible to migrate data between two different datastores using Dragonfly?

I'm currently storing images in the DB - using a custom relational data store, and want to migrate to an S3-like web API sore.

Answer 1

The answer is in issue markevans/dragonfly #382 on github.

In short:

• update Dragonfly configuration to new sorage
• keep old storoage configuration in "named" config
• you can access attachemnts from old storage by:

 

job = Dragonfly.app("filestore").fetch(model.attachment_uid)
model.attachment = job.to_file(job.name)

Another solution worth mentioning I found here https://gist.github.com/lassebunk/cce8b54d7d36da0960eb)

(@CambridgeMike it is probably your own issue, but recording answers for others here).