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Diffstat (limited to 'patchwork/paginator.py')
-rw-r--r-- | patchwork/paginator.py | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/patchwork/paginator.py b/patchwork/paginator.py new file mode 100644 index 0000000..31c0190 --- /dev/null +++ b/patchwork/paginator.py @@ -0,0 +1,88 @@ +# Patchwork - automated patch tracking system +# Copyright (C) 2008 Jeremy Kerr <jk@ozlabs.org> +# +# This file is part of the Patchwork package. +# +# Patchwork is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# Patchwork is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with Patchwork; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + +from django.core import paginator +from django.conf import settings + +DEFAULT_PATCHES_PER_PAGE = 100 +LONG_PAGE_THRESHOLD = 30 +LEADING_PAGE_RANGE_DISPLAYED = TRAILING_PAGE_RANGE_DISPLAYED = 10 +LEADING_PAGE_RANGE = TRAILING_PAGE_RANGE = 8 +NUM_PAGES_OUTSIDE_RANGE = 2 +ADJACENT_PAGES = 4 + +# parts from: +# http://blog.localkinegrinds.com/2007/09/06/digg-style-pagination-in-django/ + +class Paginator(paginator.Paginator): + def __init__(self, request, objects): + + patches_per_page = settings.DEFAULT_PATCHES_PER_PAGE + + if request.user.is_authenticated(): + patches_per_page = request.user.profile.patches_per_page + + n = request.META.get('ppp') + if n: + try: + patches_per_page = int(n) + except ValueError: + pass + + super(Paginator, self).__init__(objects, patches_per_page) + + try: + page_no = int(request.GET.get('page')) + self.current_page = self.page(int(page_no)) + except Exception: + page_no = 1 + self.current_page = self.page(page_no) + + self.leading_set = self.trailing_set = [] + + pages = self.num_pages + + if pages <= LEADING_PAGE_RANGE_DISPLAYED: + self.adjacent_set = [n for n in range(1, pages + 1) \ + if n > 0 and n <= pages] + elif page_no <= LEADING_PAGE_RANGE: + self.adjacent_set = [n for n in \ + range(1, LEADING_PAGE_RANGE_DISPLAYED + 1) \ + if n > 0 and n <= pages] + self.leading_set = [n + pages for n in \ + range(0, -NUM_PAGES_OUTSIDE_RANGE, -1)] + elif page_no > pages - TRAILING_PAGE_RANGE: + self.adjacent_set = [n for n in \ + range(pages - TRAILING_PAGE_RANGE_DISPLAYED + 1, \ + pages + 1) if n > 0 and n <= pages] + self.trailing_set = [n + 1 for n in range(0, \ + NUM_PAGES_OUTSIDE_RANGE)] + else: + self.adjacent_set = [n for n in range(page_no - ADJACENT_PAGES, \ + page_no + ADJACENT_PAGES + 1) if n > 0 and n <= pages] + self.leading_set = [n + pages for n in \ + range(0, -NUM_PAGES_OUTSIDE_RANGE, -1)] + self.trailing_set = [n + 1 for n in \ + range(0, NUM_PAGES_OUTSIDE_RANGE)] + + + self.leading_set.reverse() + self.long_page = \ + len(self.current_page.object_list) >= LONG_PAGE_THRESHOLD |