thank Melvyn :) i understands right now!
On Mon, Feb 20, 2017 at 9:24 AM, Melvyn Sopacua <m.r.sopa...@gmail.com>
wrote:
> On Monday 20 February 2017 08:39:07 carlos wrote:
>
> > Hi, Melvyn yes i use similar but for the question is
>
> > the best way?
>
> >
>
> > def get_absolute_url(self):
>
> >
>
> > return '/%s/%s-%s/' % (self.categories.all()[0].slug, self.id,
>
> > self.slug) #this way a take first category, but other best way to do
>
> > that?
>
>
>
> Sure. Whatever "the best" may be.
>
>
>
> Best = "Make sure we always get the same category":
>
>
>
> class CategoryInfo(models.Model):
>
> my_model = models.ForeignKey('MyModel', on_delete=models.CASCADE,
> releated_name='+')
>
> category = models.ForeignKey(Category, on_delete=models.CASCADE,
> related_name='+')
>
> is_primary = models.BooleanField(default=False)
>
>
>
> class MyModel(models.Model):
>
> post = models.CharField(....)
>
> slug = models.SlugField(.....)
>
> categories = models.ManyToMany(Category, through=CategoryInfo)
>
>
>
> def get_absolute_url(self):
>
> try:
>
> category = CategoryInfo.objects.get(my_model=self, is_primary=True)
>
> except Category.DoesNotExist:
>
> category = CategoryInfo.objects.filter(
>
> my_model=self
>
> ).first()
>
> return "/%s/%s-%s/" % (category.slug, self.id, self.slug)
>
>
>
> Best = "Don't depend on URL structure":
>
>
>
> class MyModel(models.Model):
>
> # .... fields ....
>
>
>
> def get_absolute_url(self):
>
> category = self.categories.first()
>
> kwargs = {
>
> 'category_slug': category.slug,
>
> 'pk': self.pk,
>
> 'slug': self.slug,
>
> }
>
> return reverse('mymodel_detail', args=(), kwargs=kwargs)
>
>
>
> urls.py:
>
> urlpatterns = (
>
> url(
>
> '^(?P<category_slug>[a-z0-9-A-Z_-]+)/(?<pk>[0-9]+)-(?P<slug>
> [a-z0-9-A-Z_-]+)/$',
>
> views.MyModelDetailView.as_view(),
>
> name='mymodel_detail'
>
> ),
>
> )
>
>
>
> --
>
> Melvyn Sopacua
>
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--
att.
Carlos Rocha
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