How to make next and previous post button on my blog in Django?

Question

I am making next and previous post button work on my blog in Django/Python. I thought it would be possible if I give a next or previous ID of articles to my URL like http://localhost:8000/3/ .

So I did as follows

next_article = Article.objects.filter(id__gt=article.id).order_by('id').first()
previous_article = Article.objects.filter(id__lt=article.id).order_by('id').first()

<li><a href=" {{ previous_article }} ">Previous</a></li>
<li><a href=" {{ next_article }} ">Next</a></li>

their return values are definitely just the numbers when I print them in my console. but it doesnt work on my real blog. Their values are just the same as their original ID of the present post. How do I make this right?

Answer 1

What do you mean by doing:

<li><a href=" {{ previous_article }} ">Previous</a></li>
<li><a href=" {{ next_article }} ">Next</a></li>

Should href be a url?

Maybe use:

<li><a href=" {% url 'your-article-url-name' article.id-1 %} ">Previous</a></li>
<li><a href=" {% url 'your-article-url-name' article.id+1 %} ">Next</a></li>

if your urls are like:

url(r'^\d+/$', views.your-article-view, name='your-article-url-name')

Or if you have defined get_absloute_url for your article in the modle,you can use:

<li><a href=" {{ previous_article.get_absloute_url }} ">Previous</a></li>
<li><a href=" {{ next_article.get_absloute_url }} ">Next</a></li>