Using carrierwave with paper_trail

[cristi.prodan]

Hi,

I'm trying to include undo support using the paper_trail gem and the
tutorial described in this railscast http://railscasts.com/episodes/255-undo-with-paper-trail.

My model uses carrierwave for pictures manipulation. After deleting an
instance of the model, the file also gets deleted. Is there any way to
prevent that (which would allow restoring the instance of the model
using paper_trail) ?

E.g.

@model.destroy # also deletes the file; I would like to call
something that keeps the file

@model.delete # does not work because the version of the model is not
saved by paper_trail.

Thanks,
Cristi

[Jonas Nicklas]

The ORM adapters call #remove_*column_name*! to remove the file.
Override that method to do nothing, or write your own ORM adapter that
doesn't do that (they're not a lot of code, see:
https://github.com/jnicklas/carrierwave/blob/master/lib/carrierwave/orm/activerecord.rb).

/Jonas

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[frizbe1605]

If you are using Mongoid you can include Mongoid::Paranoia which will
just set a deleted_at attribute. The record would no longer be
returned unless explicitly called for ala
@model.where(:deleted_at.exists => true)

On Mar 22, 3:17 am, "cristi.prodan" <prodan.crist...@gmail.com> wrote:
> Hi,
>
> I'm trying to include undo support using the paper_trail gem and the

> tutorial described in this railscasthttp://railscasts.com/episodes/255-undo-with-paper-trail.