Hi Kev,
I wouldn't worry too much about querying vs. db.get - if you're
concerned about the performance measure both approaches so you can see
the difference for your app.
As for combining the templates though, you could just add square
brackets around the linked_item in SingleItem:
values = {'items': [linked_item]}
cheers
Michael
On Mar 10, 7:27 am, kd <[email protected]> wrote:
> Hi,
>
> The homepage of my app displays a list of items with their content
> (might as well think of it as a blog), and you can also link to
> individual items. I'd like to use the same set of templates for both
> cases.
>
> So my handlers look something like this:
> -----------------------------------------------------
> class MainPage(webapp.RequestHandler):
> def get(self):
> items = db.GqlQuery('SELECT * FROM Item')
> values = {'items': items}
> self.response.out.write(template.render('main.html', values))
>
> class SingleItem(webapp.RequestHandler):
> def get(self):
> key = #determine item key
> linked_item = db.get(key)
> values = {'linked_item': linked_item}
> self.response.out.write(template.render('main.html', values))
> -----------------------------------------------------
>
> And here's main.html:
> -----------------------------------------------------
> {% if linked_item %}
> {{ linked_item.content }}
> {% else %}
> {% for item in items %}
> {{ item.content }}
> {% endfor %}
> {% endif %}
> -----------------------------------------------------
>
> This doesn't look like a great solution but I haven't been able to
> think of (or find) a better one. I've been told to use db.get when
> possible because it's faster, but the object it returns isn't iterable
> and so the template becomes awkward.
>
> Is there a way to put the return from db.get into an iterable object?
> That way I could simply have "{% for item in items %}
> {{ item.content }} {% endfor %}" in my template and it would work
> without errors.
>
> Should I just use a query instead of db.get? Any other solutions? I've
> been looking through GAE and Django template docs but haven't found
> anything yet.
>
> Any ideas, even a link to the right piece of documentation would be
> awesome.
>
> Thanks,
> Kev
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