On 2/4/12 4:00 PM, D.C. Ernst wrote:
I just finished a worksheet for my linear algebra class and while
working on it I had to start over 5 times because I was nailed with the
rearranging text and output bug. I created the worksheet on my school's
notebook server, which is running Sage 4.7. Each time here is what
happened. I would be editing a block of text in the tinyMCE editor, I'd
click save, and suddenly the raw HTML would appear in a Sage cell. The
moment I tried to fix stuff, the worksheet would get completely fubared.
Along the way, I had been copying the contents under the "Edit" menu
because this happens to be so frequently. Each time, I would delete the
worksheet, create a new one, and then paste the contents I had copied
from the Edit menu into the new worksheet. Eventually, it would happen
again. Luckily, I finished the worksheet before it happened again, but I
want to share this worksheet with my students. A few questions:
1. Why does this happen to me so much?
Possibly because you are running 4.7, and maybe it happened a lot in
4.7. When you are editing, how often are you evaluating cells? Do you
know what the worksheet timeout is set to in your server (log in as the
administrator, go to the Notebook settings page, and look at the Idle
timeout)? My best guess for the cause is that while you are editing a
text cell, the worksheet times out. Then it messes up when you try to
save the text cell.
If you can replicate it on sagenb.org, that would be fantastic. The
entire notebook has had massive rewrites since the version you are
running, and at least one bug dealing with saving text cells was fixed
last July.
2. Will it happen to my students after saving the published version?
Possibly.
3. What's the proper way to start over in order to minimize the risk of
it happening again?
Can you check the idle timeout?
Thanks,
Jason
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