Django view variables based on url

Question

I'm just starting off with python so bear with me.

Lets say this is my model:

class Event(models.Model):
    name = models.CharField(max_length=100, verbose_name=_('name'))
    location = models.CharField(max_length=200, verbose_name=_('location'))
    start_time = models.DateTimeField(verbose_name=_('start time'))
    end_time = models.DateTimeField(verbose_name=_('end time'))
    sales_start = models.DateField(verbose_name=_('sales start'))
    sales_end = models.DateField(verbose_name=_('sales end'))
    event_active = models.BooleanField(verbose_name=_('event active'))
    price = models.IntegerField(verbose_name=_('price'))
    maximum = models.IntegerField(verbose_name=_('maximum'))
    information = models.CharField(max_length=500, verbose_name=_('information'))
    logo = models.ImageField(verbose_name=_('logo'), blank=True, upload_to='img/%Y/%m/%d')

What I would like to accomplish is make a single page and fill it with data from an 'event', I would like to get this event by getting the Id from the url.

I'm not sure on how to do this as I don't understand certain parts of the documentation as I'm not a native English speaker.

Answer 1

I think this is what you are trying to do:

# urls.py
# note 'event_id' will be passed as argument to 'show_event' view.
url(r'events/(?P<event_id>\d+)/$', 'show_event', name='show_event')


# views.py
def show_event(request, event_id):
    ...
    # this will return a 404 response is case event with given id is not found
    event = get_object_or_404(Event, id=event_id)
    ...
    return render(request, 'template.html', {'event': event})


# template.html
<h1>Welcome to the event {{event.name}}</h1>

You will use URLs in this way: yourdomain.com/events/123. That would pull 123 event id from URL and render template.html sending the proper event object in the template context, so you can render it as you want.

Answer 2

So your urls.py will need to be designed to except a regular expression of anything your page name could be. In the example provided by Martin you can also have a regular expression match text instead of just a number.