TMP file url instead of AWS storage url, after migration from 1.3.1 to 2.0.1

[AleksandrLeontev]

I save Message model with nested Attachment model via accepts_nested_attributes_for and everything works on 1.3.1
When I migrate to 2.0.1 in general everything work, except one moment:
First time server return tmp path instead of absolute file path to AWS.
When I try to check attachment url via rails console or reload the page it works, but right after first upload uploader start return tmp file with 2.0.1 version

[mshibuya]

Can I take a look at your uploader code?

[AleksandrLeontev]

[mshibuya]

Sorry for getting back late.

but right after first upload uploader start return tmp file with 2.0.1 version

How and when do you obtain the attachment url? Could you provide a code snippet?

[mshibuya]

I suppose this is because of #2209, which defers the timing of storing attachments to after_commit phase.
Version 3.0 comes with #2546 that restores the timing to after_save. Or if you need to stay on 2.x, you need to hook into after_commit to obtain a stored URL, not cached one.