I'm trying to create Unicode slugs with Django. The problem arises when it tries to save and resolve URLs with said slugs with Unicode characters in it. When I checked, Django seems to modify the characters when SlugField is used.
This is my models.py:
class Post(models.Model):
title = models.CharField()
slug = models.SlugField(unique=True, blank=True, allow_unicode=True)
urls.py
from django.urls import path
from . import views
app_name = 'blog'
urlpatterns = [
# Cat
path('', views.CatList.as_view(), name='cat-list'),
path('create/', views.CatCreate.as_view(), name='cat-create'),
path('<slug:cat_slug>/', views.CatDetail.as_view(), name='cat-detail'),
path('<slug:cat_slug>/edit/', views.CatEdit.as_view(), name='cat-edit'),
# Post
path('<slug:cat_slug>/posts/', views.CatDetail.as_view(), name='post-list'),
path('<slug:cat_slug>/posts/create/', views.PostCreate.as_view(), name='post-create'),
path('<slug:cat_slug>/posts/<slug:post_slug>/', views.PostDetail.as_view(), name='post-detail'),
path('<slug:cat_slug>/posts/<slug:post_slug>/edit/', views.PostEdit.as_view(), name='post-edit')
]
And I use slugify(slug, allow_unicode=True) to auto-generate slug from title.
So to test this I used தமிழ் as title. Instead of a successful redirect to the URL /cats/test-cat/posts/தமிழ்/ Django showed NoReverseMatch exception with the following message.
Reverse for 'post-detail' with arguments '('test-cat', 'zw93tz-தமழ')' not found. 1 pattern(s) tried: ['cats/(?P<cat_slug>[-a-zA-Z0-9_]+)/posts/(?P<post_slug>[-a-zA-Z0-9_]+)/$']
When I check the database, the title field has the right characters தமிழ் but the slug field has the modified characters தமழ.
When I looked up for solutions, I found a workaround to use <str> instead of <slug> in urls.py.
Why is this happening with <slug> and how to fix this?
