Added SEO-friendly URLs for posts

Module02/mysite/blog/migrations/0002_alter_post_slug.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.4 on 2023-08-20 11:59
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('blog', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='post',
+            name='slug',
+            field=models.SlugField(max_length=250, unique_for_date='publish'),
+        ),
+    ]

Module02/mysite/blog/models.py

@@ -10,7 +10,7 @@ class Status(models.TextChoices):
         PUBLISHED = 'PB', 'Published'
 
     title = models.CharField(max_length=250)
-    slug = models.SlugField(max_length=250)
+    slug = models.SlugField(max_length=250, unique_for_date='publish')
     author = models.ForeignKey(User, on_delete=models.CASCADE, related_name='blog_posts')
     body = models.TextField()
     publish = models.DateTimeField(default=timezone.now)
@@ -29,6 +29,9 @@ def __str__(self):
 
     def get_absolute_url(self):
         return reverse("blog:post_detail", args=[
-            self.id
+            self.publish.year,
+            self.publish.month,
+            self.publish.day,
+            self.slug,
         ])
 

Module02/mysite/blog/urls.py

@@ -5,5 +5,5 @@
 
 urlpatterns = [
     path('', views.post_list, name='post_list'),
-    path('<int:id>/', views.post_detail, name='post_detail'),
+    path('<int:year>/<int:month>/<int:day>/<slug:post>/', views.post_detail, name='post_detail'),
 ]

Module02/mysite/blog/views.py

@@ -5,6 +5,13 @@ def post_list(request):
     posts = Post.objects.all()
     return render(request, 'blog/post/list.html', {'posts': posts})
 
-def post_detail(request, id):
-    post = get_object_or_404(Post, id=id, status=Post.Status.PUBLISHED)
+def post_detail(request, year, month, day, post):
+    post = get_object_or_404(
+                                Post, 
+                                status=Post.Status.PUBLISHED, 
+                                slug=post,
+                                publish__year=year, 
+                                publish__month=month, 
+                                publish__day=day
+                            )
     return render(request, 'blog/post/detail.html', {'post': post})