Hello,
I am trying to design a system for people to submit a series of documents to a
project. I want users to have the ability to submit updates to any documents, so
that there should be a history (or sequence) for each document. I think in terms of
python data structures, so the relational database organization is not all that clear
to me (so I am trying to learn it!). I am using buzhug, but the concept should be
the same in any rdb.
So my conceptual structure would look something like:
project1:
document 1, document 1a, document 1b
document 2
document 3, document 3a
project 2:
document 4, document 4a
etc...
I want to be able to query the history of any single document, so I can get a list of
document 1, 1a, and 1b. or document 3 and 3a, etc...
So I have something like this (omitting a few lines, for clarity) to set up the
record structure:
users.create((' name',str),
('email',str))
project.create( ('description', str),
('label',str),
('creation_date ',date),
('submitter',us ers))
documents.creat e(('filename',s tr),
('submit',date) ,
('submitter',us ers),
('type',str),
('project',proj ect))
with this structure, I can get a project with a series of documents, but each
document doesn't have a history. My first thought (with Python data structures) is
to use a list, but that's not an rdb concept. Do I make something like:
document_sequen ces.create(('na me',str),('proj ect',project))
and then change documents so that it contains not only a project field, but a
document_sequen ce field? Am I thinking about this correctly?
Is there a resource I can read that goes through any of this?
thanks,
Brian Blais
--
-----------------
bb****@bryant.e du
http://web.bryant.edu/~bblais
