Share same pagination code for different views in Django - django

Question

I'm building a simple blog app using Django.
This app has a main template blog.html which is shared between the following views:
blog (url: /blog/[page number])
Main page of the blog, displays the last articles
search (url: /search/<query>/[page number])
Will display the articles who match the query
category (url: /category/<category name>/[page number])
Will display the articles from the given category
Each a this views provides the template blog.html with an object page obtained using the function Paginator each time with a different objects list (depending on the view).
Here is my problem:
The template blog.html contains a pager
<ul class="pager">
{% if page.has_previous %}
<li class="previous">
<a href="{{ url_previous_page }}" class="btn btn-primary" >← Older</a>
</li>
{% endif %}
{% if page.has_next %}
<li class="next">
<a href="{{ url_next_page }}" class="btn btn-primary" >Newer →</a>
</li>
{% endif %}
</ul>
How can I define in an elegant way the values of url_next_page and url_previous_page in all the views?

Answer 1

You shouldn't really need to supply the links for the next and previous buttons like that. I would suggest changing your pagination code to be something like this:
<div class="pagination-wrap">
<span class="pagination-links">
{% if page_obj.has_previous %}
{% endif %}
<span class="current">
{{ page_obj.number }} of {{ page_obj.paginator.num_pages }}
</span>
{% if page_obj.has_next %}
{% endif %}
</span>
<div>{{ page_obj.start_index }} to {{ page_obj.end_index }} of {{ page_obj.paginator.count }}</div>
</div>
In your views, all you need to specify is the number of objects to paginate by with paginate_by = 15.
If you really want to, you could create a mixin for your list views to use which has a method that could return the url you want.