Add a views count on article

Incremented by non logged in visitors

articles/admin.py

@@ -26,12 +26,12 @@ class ArticleAdmin(admin.ModelAdmin):
             {
                 "fields": (
                     "title",
-                    "status",
+                    ("author", "status"),
-                    ("created_at", "published_at", "updated_at"),
+                    ("published_at", "created_at", "updated_at"),
-                    "author",
+                    "views_count",
                 )
             },
         ),
         ("Content", {"fields": ("content",)}),
     ]
-    readonly_fields = ["created_at", "updated_at"]
+    readonly_fields = ["created_at", "updated_at", "views_count"]

articles/migrations/0004_article_views_count.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1 on 2020-08-14 20:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("articles", "0003_auto_20200814_1522"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="article",
+            name="views_count",
+            field=models.IntegerField(default=0),
+        ),
+    ]

articles/models.py

@@ -23,6 +23,7 @@ class Article(models.Model):
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)
     author = models.ForeignKey(User, on_delete=models.PROTECT)
+    views_count = models.IntegerField(default=0)
 
     class Meta:
         ordering = ["-published_at"]

articles/views.py

@@ -1,3 +1,4 @@
+from django.db.models import F
 from django.views import generic
 
 from articles.models import Article
@@ -18,3 +19,11 @@ class ArticleDetailView(generic.DetailView):
 
     def get_queryset(self):
         return super().get_queryset().filter(status=Article.PUBLISHED)
+
+    def get_object(self, queryset=None):
+        obj = super().get_object(queryset)
+        if not self.request.user.is_authenticated:
+            obj.views_count = F("views_count") + 1
+            obj.save(update_fields=["views_count"])
+
+        return obj