django: better paginator

betterpaginator.py

from django.core.paginator import Paginator, EmptyPage

class BetterPaginator(Paginator):
    """An enhanced version of the Paginator"""

    def __init__(self, getvars, *args, **kwargs):
        """default args are:

        self, object_list, per_page, orphans=0, allow_empty_first_page=True
        
        """
        super(BetterPaginator, self).__init__(*args, **kwargs)
        getvars_dict = getvars.copy()
        try:
            self.page_num = self.validate_number(getvars_dict.pop('page')[0])
        except KeyError:
            self.page_num = 1
        self.getvars = getvars_dict and '&' + getvars_dict.urlencode() or ''

    def get_context(self, range_gap=5):
        if self.page_num > range_gap:
            start = self.page_num - range_gap
        else:
            start = 1
        if self.page_num < (self.num_pages - range_gap):
            end = self.page_num + range_gap + 1
        else:
            end = self.num_pages + 1
        try:
            paginator = self.page(self.page_num)
        except EmptyPage:
            paginator = self.page(1)
        return {
            'page_range': range(start, end),
            'objects': paginator.object_list,
            'num_pages': self.num_pages,
            'page_num': self.page_num,
            'per_page':self.per_page,
            'has_previous': paginator.has_previous(),
            'has_next': paginator.has_next(),
            'previous_page': paginator.previous_page_number(),
            'next_page': paginator.next_page_number(),
            'is_first': self.page_num == 1,
            'is_last': self.page_num == self.num_pages,
            'objects_count': self.count,
            'start_index': paginator.start_index,
            'end_index': paginator.end_index,
            'getvars': self.getvars,
        }