-try:
- set
-except NameError:
- from sets import Set as set
+# Copyright (c) 2008, Eric Florenzano
+# Copyright (C) 2010, 2011 Linaro Limited
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials provided
+# with the distribution.
+# * Neither the name of the author nor the names of other
+# contributors may be used to endorse or promote products derived
+# from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
from django import template
-from django.template import TOKEN_BLOCK
-from django.http import Http404
-from django.core.paginator import Paginator, InvalidPage
from django.conf import settings
+from django.core.exceptions import ImproperlyConfigured
+from django.core.paginator import Paginator, InvalidPage
+from django.http import Http404
+from django.template import TOKEN_BLOCK
-register = template.Library()
+# TODO, import this normally later on
+from linaro_django_pagination.settings import *
-DEFAULT_PAGINATION = getattr(settings, 'PAGINATION_DEFAULT_PAGINATION', 20)
-DEFAULT_WINDOW = getattr(settings, 'PAGINATION_DEFAULT_WINDOW', 4)
-DEFAULT_ORPHANS = getattr(settings, 'PAGINATION_DEFAULT_ORPHANS', 0)
-INVALID_PAGE_RAISES_404 = getattr(settings,
- 'PAGINATION_INVALID_PAGE_RAISES_404', False)
-DISPLAY_PAGE_LINKS = getattr(settings, 'PAGINATION_DISPLAY_PAGE_LINKS', True)
-PREVIOUS_LINK_DECORATOR = getattr(settings, 'PAGINATION_PREVIOUS_LINK_DECORATOR', "‹‹ ")
-NEXT_LINK_DECORATOR = getattr(settings, 'PAGINATION_NEXT_LINK_DECORATOR', " ››")
-DISPLAY_DISABLED_PREVIOUS_LINK = getattr(settings, 'PAGINATION_DISPLAY_DISABLED_PREVIOUS_LINK', False)
-DISPLAY_DISABLED_NEXT_LINK = getattr(settings, 'PAGINATION_DISPLAY_DISABLED_NEXT_LINK', False)
def do_autopaginate(parser, token):
"""
Syntax is:
- autopaginate SOMETHING [PAGINATE_BY] [ORPHANS] [as NAME]
+ autopaginate QUERYSET [PAGINATE_BY] [ORPHANS] [as NAME]
"""
# Check whether there are any other autopaginations are later in this template
expr = lambda obj: (obj.token_type == TOKEN_BLOCK and \
self.multiple_paginations = multiple_paginations
def render(self, context):
- if self.multiple_paginations or context.has_key('paginator'):
+ if self.multiple_paginations or "paginator" in context:
page_suffix = '_%s' % self.queryset_var
else:
page_suffix = ''
orphans = self.orphans.resolve(context)
paginator = Paginator(value, paginate_by, orphans)
try:
- page_obj = paginator.page(context['request'].page(page_suffix))
+ request = context['request']
+ except KeyError:
+ raise ImproperlyConfigured(
+ "You need to enable 'django.core.context_processors.request'."
+ " See linaro-django-pagination/README file for TEMPLATE_CONTEXT_PROCESSORS details")
+ try:
+ page_obj = paginator.page(request.page(page_suffix))
except InvalidPage:
if INVALID_PAGE_RAISES_404:
raise Http404('Invalid page requested. If DEBUG were set to ' +
return u''
-def paginate(context, window=DEFAULT_WINDOW):
+def paginate(context, window=DEFAULT_WINDOW, margin=DEFAULT_MARGIN):
"""
Renders the ``pagination/pagination.html`` template, resulting in a
Digg-like display of the available pages, given the current page. If there
a different page.
``pagination_template``
- A custom template to include in place of the default ``pagination.html``
+ A custom template to include in place of the default ``pagination/default.html``
contents.
- """
+ Argument ``window`` is number to pages before/after current page. If window
+ exceeds pagination border (1 and end), window is moved to left or right.
+
+ Argument ``margin``` is number of pages on start/end of pagination.
+ Example:
+ window=2, margin=1, current=6 1 ... 4 5 [6] 7 8 ... 11
+ window=2, margin=0, current=1 [1] 2 3 4 5 ...
+ window=2, margin=0, current=5 ... 3 4 [5] 6 7 ...
+ window=2, margin=0, current=11 ... 7 8 9 10 [11]
+ """
+
+ if window < 0:
+ raise ValueError('Parameter "window" cannot be less than zero')
+ if margin < 0:
+ raise ValueError('Parameter "margin" cannot be less than zero')
try:
paginator = context['paginator']
page_obj = context['page_obj']
records['last'] = records['first'] + paginator.per_page - 1
if records['last'] + paginator.orphans >= paginator.count:
records['last'] = paginator.count
- # First and last are simply the first *n* pages and the last *n* pages,
- # where *n* is the current window size.
- first = set(page_range[:window])
- last = set(page_range[-window:])
- # Now we look around our current page, making sure that we don't wrap
- # around.
- current_start = page_obj.number-1-window
- if current_start < 0:
- current_start = 0
- current_end = page_obj.number-1+window
- if current_end < 0:
- current_end = 0
- current = set(page_range[current_start:current_end])
- pages = []
- # If there's no overlap between the first set of pages and the current
- # set of pages, then there's a possible need for elusion.
- if len(first.intersection(current)) == 0:
- first_list = list(first)
- first_list.sort()
- second_list = list(current)
- second_list.sort()
- pages.extend(first_list)
- diff = second_list[0] - first_list[-1]
- # If there is a gap of two, between the last page of the first
- # set and the first page of the current set, then we're missing a
- # page.
- if diff == 2:
- pages.append(second_list[0] - 1)
- # If the difference is just one, then there's nothing to be done,
- # as the pages need no elusion and are correct.
- elif diff == 1:
- pass
- # Otherwise, there's a bigger gap which needs to be signaled for
- # elusion, by pushing a None value to the page list.
- else:
- pages.append(None)
- pages.extend(second_list)
+
+ # figure window
+ window_start = page_obj.number - window - 1
+ window_end = page_obj.number + window
+
+ # solve if window exceeded page range
+ if window_start < 0:
+ window_end = window_end - window_start
+ window_start = 0
+ if window_end > paginator.num_pages:
+ window_start = window_start - (window_end - paginator.num_pages)
+ window_end = paginator.num_pages
+ pages = page_range[window_start:window_end]
+
+ # figure margin and add elipses
+ if margin > 0:
+ # figure margin
+ tmp_pages = set(pages)
+ tmp_pages = tmp_pages.union(page_range[:margin])
+ tmp_pages = tmp_pages.union(page_range[-margin:])
+ tmp_pages = list(tmp_pages)
+ tmp_pages.sort()
+ pages = []
+ pages.append(tmp_pages[0])
+ for i in range(1, len(tmp_pages)):
+ # figure gap size => add elipses or fill in gap
+ gap = tmp_pages[i] - tmp_pages[i - 1]
+ if gap >= 3:
+ pages.append(None)
+ elif gap == 2:
+ pages.append(tmp_pages[i] - 1)
+ pages.append(tmp_pages[i])
else:
- unioned = list(first.union(current))
- unioned.sort()
- pages.extend(unioned)
- # If there's no overlap between the current set of pages and the last
- # set of pages, then there's a possible need for elusion.
- if len(current.intersection(last)) == 0:
- second_list = list(last)
- second_list.sort()
- diff = second_list[0] - pages[-1]
- # If there is a gap of two, between the last page of the current
- # set and the first page of the last set, then we're missing a
- # page.
- if diff == 2:
- pages.append(second_list[0] - 1)
- # If the difference is just one, then there's nothing to be done,
- # as the pages need no elusion and are correct.
- elif diff == 1:
- pass
- # Otherwise, there's a bigger gap which needs to be signaled for
- # elusion, by pushing a None value to the page list.
- else:
+ if pages[0] != 1:
+ pages.insert(0, None)
+ if pages[-1] != paginator.num_pages:
pages.append(None)
- pages.extend(second_list)
- else:
- differenced = list(last.difference(current))
- differenced.sort()
- pages.extend(differenced)
+
to_return = {
- 'pages': pages,
- 'page_obj': page_obj,
- 'paginator': paginator,
- 'is_paginated': paginator.count > paginator.per_page,
- 'page_suffix': page_suffix,
- 'display_page_links': DISPLAY_PAGE_LINKS,
- 'display_disabled_previous_link': DISPLAY_DISABLED_PREVIOUS_LINK,
+ 'MEDIA_URL': settings.MEDIA_URL,
+ 'STATIC_URL': getattr(settings, "STATIC_URL", None),
'display_disabled_next_link': DISPLAY_DISABLED_NEXT_LINK,
- 'previous_link_decorator': PREVIOUS_LINK_DECORATOR,
+ 'display_disabled_previous_link': DISPLAY_DISABLED_PREVIOUS_LINK,
+ 'display_page_links': DISPLAY_PAGE_LINKS,
+ 'is_paginated': paginator.count > paginator.per_page,
'next_link_decorator': NEXT_LINK_DECORATOR,
+ 'page_obj': page_obj,
+ 'page_suffix': page_suffix,
+ 'pages': pages,
'pagination_template': pagination_template,
+ 'paginator': paginator,
+ 'previous_link_decorator': PREVIOUS_LINK_DECORATOR,
+ 'records': records,
}
if 'request' in context:
getvars = context['request'].GET.copy()
return {}
+register = template.Library()
register.inclusion_tag(
'pagination/pagination.html', takes_context=True)(paginate)
-
register.tag('autopaginate', do_autopaginate)
fnp / django-pagination.git / blobdiff