"maybe a chapter needs to be added as the 13th chapter in a Book, for example"
MPTT and the other trees are mainly used on data structures where node insertion might happen anywhere on a tree. In your case, you only put chapters in books and would never move a chapter inside of a 'Library' or inside a 'File'. In other words these trees are all made up of the same node type - the typical example would be a 'Category'. Categories can have subcategories, which have sub-subcategories, etc. I'm not an expert but to me it doesn't look like you'd get much gain from using MPTT in this situation. On Feb 3, 7:58 am, Tim <jtim.arn...@gmail.com> wrote: > hi, > I think mptt or treebeard may be a good fit for my project, but I'm > not sure. Currently I have the project setup in a conventional way > with no explicit tree structure, just a pattern of ForeignKey usage. > It works, but I'm beginning to get into some complexity. > > The project is for building (compiling) a large set of documentation. > A 'Library' contains 'Books'; A 'Book' contains 'Chapters';' Chapters' > are made up of 'Files' and 'Files' refer to external 'Images'. Each of > these elements has its own set of configuration parameters. > > I'm trying to write an interface for writers to configure 'Books' and/ > or 'Chapters', which could mean setting particular configuration > fields for the element, or removing/adding elements into the overall > hierarchy at specific points (maybe a chapter needs to be added as the > 13th chapter in a Book, for example). > > I have the merest grasp of tree traversal and the associated > mathematics, but from reading the mptt docs, I think that the > application might be the perfect fit for my project. > > Can someone confirm or point me to some other documentation to help me > figure this out? > thanks, > --Tim Arnold -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
