On Nov 15, 5:48 pm, fhucho <fhu...@gmail.com> wrote: > Hi, > I am developing a web app, where users should be able to (in this > order): > 1) create their item type (item type can be everything - car, > book, movie..., item type has some user defined parameters, > like price, rating) > 2) add items of their type - e.g. they can create book type (with > title, author, rating parameters) and then add books > 3) view, filter (at least by one parameter), delete, edit their > items > > How should I design the data model? Is this even posible in App > Engine? > > Thanks in advance django has impressive builtin editor for our models with djangoforms.ModelForm seen on http://code.google.com/appengine/articles/djangoforms.html Theoretically the create "CRUD" and/or factory pattern http://en.wikipedia.org/wiki/Factory_method_pattern I recommend and use for likewise. The categoryproperty.db http://code.google.com/appengine/docs/python/datastore/typesandpropertyclasses.html#Category seems obvious choice which needs documention how it differs from a word. app I maintain has similar function, create item, add item, edit, view, filter by longitude latitude and/or category (www.koolbusiness.com/ai) sourced montao.googlecode.com Sincerely Nick RTZ
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