Add sample Django admin

sample_project/demo/admin.py

@@ -0,0 +1,37 @@
+from django.contrib import admin
+
+from .models import Category, Post, Tag
+
+
+class PostAdmin(admin.ModelAdmin):
+    list_display = ("title", "author", "category", "created_at", "updated_at")
+    list_filter = ("author", "category", "tags", "created_at")
+    search_fields = ("title", "content")
+    filter_horizontal = ("tags",)
+    date_hierarchy = "created_at"
+
+    fieldsets = (
+        (None, {"fields": ("title", "author", "category")}),
+        ("Content", {"fields": ("content", "tags")}),
+        (
+            "Timestamps",
+            {"fields": ("created_at", "updated_at"), "classes": ("collapse",)},
+        ),
+    )
+
+    readonly_fields = ("created_at", "updated_at")
+
+
+class CategoryAdmin(admin.ModelAdmin):
+    list_display = ("name",)
+    search_fields = ("name",)
+
+
+class TagAdmin(admin.ModelAdmin):
+    list_display = ("name",)
+    search_fields = ("name",)
+
+
+admin.site.register(Post, PostAdmin)
+admin.site.register(Category, CategoryAdmin)
+admin.site.register(Tag, TagAdmin)