Display only some of the page numbers by django pagination

Question

I am using the django paginator in the template. Its working ok, but not good when there\'s large numbers of pages.

views.py:

def blog(request):
             


        

Answer 1

First of all I would change the following:

try:
    blogs = paginator.page(page)
except(EmptyPage, InvalidPage):
    blogs = paginator.page(page)  # Raises the same error

But you could pass a range within your context.

index = paginator.page_range.index(blogs.number)
max_index = len(paginator.page_range)
start_index = index - 3 if index >= 3 else 0
end_index = index + 3 if index <= max_index - 3 else max_index
page_range = paginator.page_range[start_index:end_index]

Now you should be able to loop over the range to construct the right links with ?page=.

=== Edit ===
So your view would be something like this:

def blog(request):
    paginator = Paginator(Blog.objects.all(), 1)

    try:
        page = int(request.GET.get('page', '1'))
    except:
        page = 1

    try:
        blogs = paginator.page(page)
    except(EmptyPage, InvalidPage):
        blogs = paginator.page(1)

    # Get the index of the current page
    index = blogs.number - 1  # edited to something easier without index
    # This value is maximum index of your pages, so the last page - 1
    max_index = len(paginator.page_range)
    # You want a range of 7, so lets calculate where to slice the list
    start_index = index - 3 if index >= 3 else 0
    end_index = index + 3 if index <= max_index - 3 else max_index
    # Get our new page range. In the latest versions of Django page_range returns 
    # an iterator. Thus pass it to list, to make our slice possible again.
    page_range = list(paginator.page_range)[start_index:end_index]

    return render(request, 'blogs.html', {
        'blogs': blogs,
        'page_range': page_range,
    })

So now we have to edit your template to accept our new list of page numbers:

    {% if blogs.has_previous %}
        Prev
    {% endif %}
    {% if blogs.has_next %}
        Next
    {% endif %}
    

        

        {% for pg in page_range %}
            {% if blogs.number == pg %}
                
{{pg}}
            {% else %}
                
{{pg}}
            {% endif %}
        {% endfor %}