Difficulty adding slug to Generic Detail View in Django - django

Question

The view works with just the PK, however, the problem is that my PK on the live site is an incoherent string and I want to make it coherent titling for an article to boost SEO. I don't want to change the PK to the slug. I want both.
When I try to add both the PK and a slug it fails and I get the error: no reverse match.
URL path:
path('idea/<slug:slug>,<int:pk>', views.IdeaDetailView.as_view(), name='detail')
Model:
class Idea(models.Model):
idea_id = models.UUIDField(primary_key=True, default=uuid.uuid4, help_text='Searches ID')
idea_number = models.IntegerField(blank=True, null=True)
user = models.ForeignKey(User, on_delete=models.CASCADE, null=True, blank=True)
idea_title = models.CharField(max_length=300, blank=True, null=True)
idea_text = NonStrippingTextField(max_length=10000, blank=True, null=True)
Views.py:
class IdeaDetailView(generic.DetailView):
model = Idea
template_name = "idea/detail.html"
def get_context_data(self, **kwargs):
context = super(IdeaDetailView, self).get_context_data(**kwargs)
context['results'] = Idea.objects.filter(idea_id=self.kwargs.get('pk'))
return context
Admin.py:
class IdeaAdmin(admin.ModelAdmin):
prepopulated_fields = {"slug": ("idea_title",)}
I want to add a slug which is the idea_title, however if I try to add that into the URL it fails.

Answer 1

Try adding a slugfield, get_absolute_url method, and save method to your Idea model, like this:
from django.conf import settings
from django.db import models
from django.urls import reverse
from django.utils.text import slugify
class Idea(models.Model):
idea_id = models.UUIDField(primary_key=True, default=uuid.uuid4, help_text='Searches ID')
idea_number = models.IntegerField(blank=True, null=True)
user = models.ForeignKey(User, on_delete=models.CASCADE, null=True, blank=True)
idea_title = models.CharField(max_length=300, blank=True, null=True)
idea_text = NonStrippingTextField(max_length=10000, blank=True, null=True)
slug = models.SlugField(
default='',
editable=False,
max_length=300,
)
def get_absolute_url(self):
kwargs = {
'pk': self.id,
'slug': self.slug
}
return reverse('idea-pk-slug-detail', kwargs=kwargs)
def save(self, *args, **kwargs):
value = self.title
self.slug = slugify(value, allow_unicode=True)
super().save(*args, **kwargs)
Then, in urls.py:
path('idea/<int:pk>-<str:slug>/', views.IdeaDetailView.as_view(), name='detail')
And, in views.py right under template_name:
query_pk_and_slug = True
Two more methods and more info found HERE.
Hope this helps!