put this code into your application's __init__.py
it adds a mixin to the Paginator
class that implements a digg style pagination. the mixin has just one method called digg_page_range
that takes the current page object as the parameter. this method is an iterator which yields page numbers with None
values representing gaps. this iterator is similar to the original paginator's method page_range
and it can be used in your code to emit the needed markup.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | from django.core.paginator import Paginator
class PaginatorMixin :
def digg_page_range(self, page) :
BODY_PAGES = 9
MARGIN_PAGES = 3
TAIL_PAGES = 2
position = 1
p, q = TAIL_PAGES, max(1, min(page.number - BODY_PAGES / 2, self.num_pages - BODY_PAGES + 1))
if q - p > MARGIN_PAGES :
for x in xrange(position, p + 1) :
yield x
yield None
position = q
p, q = q + BODY_PAGES - 1, self.num_pages - TAIL_PAGES + 1
if q - p > MARGIN_PAGES :
for x in xrange(position, p + 1) :
yield x
yield None
position = q
for x in xrange(position, self.num_pages + 1) :
yield x
if PaginatorMixin not in Paginator.__bases__ :
Paginator.__bases__ = (PaginatorMixin,) + Paginator.__bases__
#
# example usage in a custom tag (used from within django.views.generic.list_detail.object_list template):
#
# @register.inclusion_tag('paginator.html', takes_context = True)
# def pages(context) :
# page_obj = context['page_obj']
# return {'digg_page_range' : page_obj.paginator.digg_page_range(page_obj), 'page_obj' : page_obj}
#
# where paginator.html might look like this:
#
#<span class="pages">
# {% if page_obj.has_previous %}<a href="?page={{page_obj.previous_page_number}}"><</a>{% endif %}
# {% for p in digg_page_range %}
# {% if not p %}...{% else %}{% ifequal p page_obj.number %}<span>{{p}}</span>{% else %}<a href="?page={{p}}">{{p}}</a>{% endifequal %}{% endif %}
# {% endfor %}
# {% if page_obj.has_next %}<a href="?page={{page_obj.next_page_number}}">></a>{% endif %}
#</span>
|
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