no way to delete a section in sections index of a course

[Thomas Richter]

In the listings of all sections to a course there should be the possibility to mark each section for deletion but there is no link or button for this. This is against the CRUD pattern.

url:
http://localhost:7080/schoolyears/2009-2010/courses/python-for-beginners/@@index.html

[Tom Hoffman (tom-hoffman)]

This is trickier than it might sound. You don't want sections that contain valid data to be deleted, ever. Your really only want to allow people to get rid of mistakes. Differentiating between the two is tricky, and extraneous empty sections are mostly harmless.

[Thomas Richter (thomas-richter)]

Am Dienstag, den 14.04.2009, 19:00 +0000 schrieb Tom Hoffman:
> This is trickier than it might sound. You don't want sections that
> contain valid data to be deleted, ever. Your really only want to allow
> people to get rid of mistakes. Differentiating between the two is
> tricky, and extraneous empty sections are mostly harmless
Proposal: sections can only be deleted if they contain no other objects
inside. same as if you delete a directory in linux with rmdir it will
say to youif some files are in that it can not be deleted because
directory not empty.

what do you think?
>
> ** Changed in: schooltool
> Importance: Undecided => Medium
>

[Tom Hoffman (tom-hoffman)]

This is a reasonable approach. It just might be a little more complicated than you think, because "containment" is a little less straightforward in our object model than it is in a file system -- our db is not strictly hierarchical.