The complete commented code is:
def show():
> "shows a wiki page"
> * # request.args(0) should receive an ID for the page you want to
> 'whow'
> # you query the database to fetch the page row*
> this_page = db.page(request.args(0)) or redirect(URL('index'))
> * # for this action '/show/' we want every comment to have page_id
> reference field defaults to the current page*
> db.comment.page_id.default = this_page.id
> *# we create a form for the comments only if user is logged in, else
> the form is None*
> form = crud.create(db.comment) if auth.user else None
> * # here we are fetching the existing comments for this page*
> pagecomments = db(db.comment.page_id==this_page.id).select()
> * # now we return some objects to be rendered in the view*
> return dict(page=this_page, comments=pagecomments, form=form)
--
Bruno Rocha
[http://rochacbruno.com.br]
