[Sugar-devel] Some questions concerning saving methods on sugar

Alberto Arruda de Oliveira alberto.a.oliv at gmail.com
Wed Sep 22 18:58:18 EDT 2010


First of all, thanks for all the answers!

I decided to follow your advices and implement the saving feature of my
activity through the journal.

Although it's not working perfectly yet, I hope it will be soon. I'm just
having a little problem with the keep button. My activity creates the
journal entry like it should when I exit through the close button, but when
I press the keep button, it doesn't create the entry. Is there any big
differences in how the keep and close button access the journal to save the
state of the activity?

Also, related to the sugar-emulator, sometimes, when I close it, all the
journal entries are wiped. I suspect this is an emulator problem ( because
not only it happened with my activity, but also with other activities ), but
I'd like to be sure I'm not doing anything wrong!

Thanks again,

Alberto Arruda de Oliveira

2010/9/20 Alberto Arruda de Oliveira <alberto.a.oliv at gmail.com>

> Hello,
> I've been adapting an application to use as an activity, and I have some
> questions about the way to save on sugar.
> At first, I tried to just create a directory inside my Activity folder
> especially made for saving files, but it did not work, because of the access
> permissions to it, and, although we could simply manually change the folder
> permission for writing on that folder, we would have to do it for every
> single OLPC we installed our activity into and we didn't want that.
> Then, we started trying with the journal. Everything was going fine, until
> we discovered that another sugar activity, Scratch, implemented saving and
> loading on a similar fashion we previously wanted. It has a folder inside
> it's Activity directory with subdirectories related to each kind of Scratch
> project. Also, Scratch's Activity directory has the same access permission
> as any other sugar Activity installed.
> So, my question is, does anyone knows how Scratch implements it's save /
> loading method? is there any guide explaining how to do it without using the
> journal? Keep in mind that we do know that there are other directories we
> could use to save our files, but we would like to use our Activity directory
> if possible.
> Thanks in advance ( and sorry for any english mistakes :] ),
> Alberto Arruda de Oliveira
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