我有一个场地,这个场地上发生了很多事件。我的模型如下所示:
class Event(models.Model): title = models.CharField(max_length=200) date_published = models.DateTimeField('published date',default=datetime.now, blank=True) date_start = models.DateTimeField('start date') date_end = models.DateTimeField('end date') def __unicode__(self): return self.title description = models.TextField() price = models.IntegerField(null=True, blank=True) venue = models.ForeignKey(Venue) class Venue(models.Model): title = models.CharField(max_length=200) date_published = models.DateTimeField('published date',default=datetime.now, blank=True) venue_latitude = models.CharField(max_length=200) venue_longitude = models.CharField(max_length=200) venue_address = models.CharField(max_length=200) venue_city = models.CharField(max_length=200) venue_state = models.CharField(max_length=200) venue_country = models.CharField(max_length=200) description = models.TextField() def __unicode__(self): return u'%s' % (self.title)
我想显示在某个场所发生的所有事件。我怎样才能做到这一点?我当前的视图如下所示:
def detail(request, venue_id): venue = get_object_or_404(Venue, pk=venue_id) return render(request, 'venue-detail.html', {'venue': venue})
你可以使用events = venue.event_set另一种方式。
events = venue.event_set
请注意,venue.event_set是经理的对象,像Event.objects,这样你就可以打电话.all,.filter,.exclude和类似它来得到一个查询集。
venue.event_set
Event.objects
.all,.filter,.exclude