Author Topic: Undo everything for this sesssion (Read 4829 times)

Jeb.Beasley · « **on:** July 19, 2005, 12:40:45 pm »

Is there a way to undo an entire session? I under stand EA is based on a database with a save/as/you/go metaphor, but is there a way to create a backup at startup and revert back to that by quitting without saving the changes?

This is the biggest complaint I get about the product.

If there were some way to start a transaction when openng a project and use the file | save action for commits, that wold be great.

Thanks
Jeb

Olaf.Scheunemann · « **Reply #1 on:** July 21, 2005, 12:29:20 pm »

only thing I could think of is duplicating the EA file (=MS Access database) before starting to work on it - maybe via some macro automatically

I reported this missing undo and was told by a guru that the undo has been requested for a looong time but seems to be too hard to implement :-/

Jeb.Beasley · « **Reply #2 on:** July 21, 2005, 12:59:56 pm »

To my simple mind it seems easy. When I open a project file, do a getWorkspace().BeginTrans(). If I do any thing that touches the database, enable "File | Commit" and "File | Undo" If I am satisfied with my progress I will click File | Commit. and it will issue a Commit statement and a new BeginTrans. If I need to revert back to the state I was in when I started, I could do File | Undo (or Rollback).

If I attempt to close the application and have an open Trans, it should ask if I want to save (commit) my changes.

re the copy, I could do a little wrapper that did that and map it into the shortcut and also to the file extension eap. The wrapper coould make a copy, etc. Not so effective if using a central db repository though.

Jeb

thomaskilian · « **Reply #3 on:** July 21, 2005, 01:44:38 pm »

EA is based on ACCESS (sic!) and this AFAIK does not support Rollback/Commit

Eve · « **Reply #4 on:** July 21, 2005, 04:17:16 pm »

I don't know if access does or doesn't support commit/rollback, but I know that at least one of the other databases that EA supports doesn't. Other than that it would probably be a nice solution.

Simon

TrtnJohn · « **Reply #5 on:** July 21, 2005, 04:22:28 pm »

Have you tried using version control? You could use it to revert to a previous version. But, you would need to check the package in to make a version to fall back to.

Jeb.Beasley · « **Reply #6 on:** July 21, 2005, 07:03:43 pm »

ThomasKillian,
Thanks for the comment. Access does support transactions, we use them in oour in house applications using the Oledb interface. I don't know for odbc.

But I don't know what AFAIK is?

Where can I find out more about the pulgin interface?

tnx
jeb

mikewhit · « **Reply #7 on:** July 22, 2005, 12:42:21 am »

"pulgin" - more Bantu I expect ...

thomaskilian · « **Reply #8 on:** July 23, 2005, 01:49:36 am »

Quote

But I don't know what AFAIK is?

As Far As I Know

So I was wrong about Access, but Simon sorted it out

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