This code works well:
def detail(request, entity_group_id):
entity_group = get_object_or_404(EntityGroup, pk=entity_group_id) # noqa
entity_list = entity_group.members.order_by('name')
context = {
'entity_group': entity_group,
'entity_list': entity_list,
}
return render(request, 'core/detail.html', context)
When I converted it to a Generic View, a Reverse not found error occured
class DetailView(generic.DetailView):
model = EntityGroup
template_name = 'core/detail.html'
def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
context['entity_group'] = EntityGroup
context['entity_list'] = EntityGroup.members
return context
This is mu models.py
class Entity(models.Model):
is_person = models.BooleanField(default=True)
person = models.ForeignKey(Person, on_delete=models.PROTECT, null=True)
# noqa
company = models.ForeignKey(Company, on_delete=models.PROTECT,
null=True) # noqa
name = models.CharField(max_length=30)
def __str__(self):
return self.name
@property
def title(self):
return self.name
class Meta:
verbose_name_plural = 'entities'
class EntityGroup(models.Model):
name = models.CharField(max_length=20)
is_individual = models.BooleanField(default=True)
members = models.ManyToManyField(Entity, through='Membership')
def __str__(self):
return self.name
@property
def title(self):
return self.name
class Membership(models.Model):
entity_group = models.ForeignKey(EntityGroup, on_delete=models.PROTECT,
null=False) # noqa
entity = models.ForeignKey(Entity, on_delete=models.PROTECT, null=False)
def __str__(self):
return self.entity_group.name + '-' + self.entity.name
@property
def title(self):
return self.entity_group.name + '-' + self.entity.name
class Meta:
unique_together = ("entity", "entity_group")
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