Django

# models.py
from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User

class Category(models.Model):
    name = models.CharField(max_length=100)
    slug = models.SlugField(unique=True)
    
    def __str__(self):
        return self.name
    
    class Meta:
        verbose_name_plural = "Categories"

class Article(models.Model):
    title = models.CharField(max_length=200)
    slug = models.SlugField(unique=True)
    content = models.TextField()
    category = models.ForeignKey(Category, on_delete=models.CASCADE)
    author = models.ForeignKey(User, on_delete=models.CASCADE)
    published_date = models.DateTimeField(default=timezone.now)
    is_featured = models.BooleanField(default=False)
    
    def __str__(self):
        return self.title

# views.py
from django.shortcuts import render, get_object_or_404
from django.views.generic import ListView, DetailView
from .models import Article, Category

# Function-based view
def article_detail(request, slug):
    article = get_object_or_404(Article, slug=slug)
    return render(request, 'blog/article_detail.html', {
        'article': article,
    })

# Class-based view
class ArticleListView(ListView):
    model = Article
    template_name = 'blog/article_list.html'
    context_object_name = 'articles'
    paginate_by = 10
    
    def get_queryset(self):
        return Article.objects.filter(
            is_featured=True
        ).order_by('-published_date')

# urls.py
from django.urls import path
from . import views

app_name = 'blog'

urlpatterns = [
    path('', views.ArticleListView.as_view(), name='article_list'),
    path('article/<slug:slug>/', views.article_detail, name='article_detail'),
    path('category/<slug:slug>/', views.CategoryDetailView.as_view(), name='category_detail'),
]

<!-- article_detail.html -->
{% extends "base.html" %}

{% block title %}{{ article.title }}{% endblock %}

{% block content %}
  <article>
    <header>
      <h1>{{ article.title }}</h1>
      <div class="meta">
        Published on {{ article.published_date|date:"F j, Y" }}
        by {{ article.author.username }}
        in <a href="{% url 'blog:category_detail' article.category.slug %}">
          {{ article.category.name }}
        </a>
      </div>
    </header>
    
    <div class="content">
      {{ article.content|safe }}
    </div>
  </article>
{% endblock %}