[Inquiry]GNUCash SoC - Implementing Undo

[Derek Atkins]

Ariel <asgnucash at dsgml.com> writes:

> It seems to me that an undo in a multi-user environment should be exactly 
> equal to the user deleting (or changing, etc) the transaction manually 
> back to what it was.

As pointed out, this isn't completely true.  In a multi-user environment
another user may have updated the transaction so your "undo" shouldn't
silently discard their changes.

> Meaning the log file would first show a 'do' transaction and later would 
> show an 'undo' transaction, rather then the transaction not showing up in 
> the log at all.

This is true..

> It's not exactly how undo on an editor works, but I think it's the right 
> thing for gnucash. One consequence is that if you do something and then 
> undo it, gnucash will ask you to save the file, while in an editor it 
> wouldn't.

Well, in a multi-user environment you're certainly using a DB, so there
would be no "save".  Each Do/Undo would effect a save to the DB.

>  	-Ariel

-derek

-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
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