Nrthugu

modeltranslation...

i change title, content and slug sections on my translation.py. Everything work is fine but i have a problem.

let me try to explain;

i have one post in my website and this post "slug" like this;

slug_en = some_en_slug

slug_fr = some_fr_slug

And i have one language changer on my navbar.

     {% get_current_language as LANGUAGE_CODE %}

     {% get_available_languages as LANGUAGES %}

     {% get_language_info_list for LANGUAGES as languages %}



<form action="{% url "set_language" %}" method="post" class="navbar-form navbar-right">

{% csrf_token %}

<div class="form-group">

    <select name="language" class="form-control" onchange="this.form.submit()">

    {% for language in languages %}

    <option value="{{ language.code }}"

        {% if language.code == LANGUAGE_CODE %}selected="selected"{% endif %}>

        {{ language.name_local }}

    </option>

    {% endfor %}

    </select>

</div>

</form>

Actually this lang. changer working fine. This is change all slug href url's on outside post... But this didnt change slug url in post page.

when i go this url;

https://example.com/en/en_slug

and after try change language, my browser is going this url;

https://example.com/fr/en_slug and i see 404 page..

i need to go to https://example.com/fr/fr_slug this url after change language ...

I dont have any idea for this. I would like your help.

urls.py

from django.urls import path

from . import views

from django.utils.translation import gettext_lazy as _



app_name = "article"





urlpatterns = [

    path(_('dashboard/'),views.dashboard,name="dashboard"),

    path(_('addarticle/'),views.addarticle,name="addarticle"),

    path('<slug>',views.detail,name="detail"),

    path('edit/<int:id>',views.editArticle,name="edit"),

    path('delete/<int:id>',views.deleteArticle,name="delete"),

    path(_('article/'),views.articles,name="article"),

    path('comment/<int:id>',views.addcomment,name="comment"),

    path('category/<slug>', views.category_detail,name="category_detail" )

]

models.py

from django.db import models

from ckeditor.fields import RichTextField

from django.utils.text import slugify



class Article(models.Model):



    author = models.ForeignKey("auth.User",on_delete = models.CASCADE, verbose_name="Author")

    title = models.CharField(max_length = 120, verbose_name="Title")

    category = models.ForeignKey('Category', on_delete = models.CASCADE, null=True, blank=True)

    content = RichTextField(verbose_name="Content")

    created_date = models.DateTimeField(auto_now_add=True, verbose_name="Created Date")

    image = models.ImageField(blank=True, null=True, verbose_name="Add Image (.jpg .png)")

    slug = models.SlugField(unique=True, max_length = 130)



    def __str__(self):

        return self.title



    def get_unique_slug(self):

        slug = slugify(self.title.replace("ı","i"))

        unique_slug = slug

        counter = 1

        while Article.objects.filter(slug=unique_slug).exists():

            unique_slug = '{}-{}'.format(slug, counter)

            counter += 1

        return unique_slug



    def save(self, *args, **kwargs):

        if not self.slug:

            self.slug = self.get_unique_slug()

        return super(Article, self).save(*args, **kwargs)

translation.py

from modeltranslation.translator import translator, TranslationOptions

from .models import Article



class ArticleTranslationOptions(TranslationOptions):

    fields = ('title', 'content','slug')



translator.register(Article, ArticleTranslationOptions)

view.py

from django.shortcuts import render,  get_object_or_404

from .models import Article, Category

from django.core.paginator import Paginator

from django.utils.translation import gettext as _



def index(request): 

    from django.utils import translation  

    articles = Article.objects.all()

    category = Category.objects.all()



    context = {

        "articles": articles,

        "category": category,



         }



    return render(request, 'index.html', context)



def detail(request,slug):

    article = get_object_or_404(Article, slug = slug)

    category = Category.objects.all()



    return render(request, "detail.html", {"article":article, "category":category,})







def category_detail(request,slug):

    template = "category_detail.html"



    category=get_object_or_404(Category,slug=slug)

    article=Article.objects.filter(category=category)



    context = {

        'category' : category,

        'article' : article,

    }

    return render(request,template,context)



def category_page(request):

    object_list = Category.objects.all()

    context = {'object_list': object_list,}

    return render(request, 'detail.html', context)

I think i need some changes in urls.py but i dont know :/

Thanks for help...

In your detail view you should try matching the slug for all the languages:

from django.conf import settings

from django.db.models import Q



languages = dict(settings.LANGUAGES).keys()

q = Q()

for lang in languages:

    kwargs = {'slug_%s' % lang: slug}

    q |= Q(**kwargs)

articles = Article.objects.filter(q)

if articles.exists():

    article = articles.first()

else:

    return Http404

If you want to switch the URL to the correct slug for the current language, you could add the following line after article = articles.first():

if not article.slug == slug:  

    # slug is a different language than the current one

    return redirect(reverse("detail", kwargs={'slug': article.slug}))

Note that this will add a round-trip and refetch the same article a second time, but I don't see how you would otherwise change the URL.