/
sitemaps.py
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/
sitemaps.py
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# Copyright (c) 2011, 2012 Free Software Foundation
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
# This program 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 Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Copyright (c) 2011, 2012 Free Software Foundation
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
# This program 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 Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This project incorporates work covered by the following copyright and permission notice:
# Copyright (c) 2009, Julien Fache
# 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.
"""Sitemaps for Objectapp"""
from django.contrib.sitemaps import Sitemap
from django.core.urlresolvers import reverse
from tagging.models import TaggedItem
from objectapp.models import Gbobject
from objectapp.models import Author
from objectapp.models import Objecttype
from objectapp.managers import tags_published
class GbobjectSitemap(Sitemap):
"""Sitemap for gbobjects"""
priority = 0.5
changefreq = 'weekly'
def items(self):
"""Return published gbobjects"""
return Gbobject.published.all()
def lastmod(self, obj):
"""Return last modification of an gbobject"""
return obj.last_update
class ObjecttypeSitemap(Sitemap):
"""Sitemap for objecttypes"""
changefreq = 'monthly'
def cache(self, objecttypes):
"""Cache categorie's gbobjects percent on total gbobjects"""
len_gbobjects = float(Gbobject.published.count())
self.cache_objecttypes = {}
for cat in objecttypes:
if len_gbobjects:
self.cache_objecttypes[cat.pk] = cat.gbobjects_published(
).count() / len_gbobjects
else:
self.cache_objecttypes[cat.pk] = 0.0
def items(self):
"""Return all objecttypes with coeff"""
objecttypes = Objecttype.objects.all()
self.cache(objecttypes)
return objecttypes
def lastmod(self, obj):
"""Return last modification of a Objecttype"""
gbobjects = obj.gbobjects_published()
if not gbobjects:
return None
return gbobjects[0].creation_date
def priority(self, obj):
"""Compute priority with cached coeffs"""
priority = 0.5 + self.cache_objecttypes[obj.pk]
if priority > 1.0:
priority = 1.0
return '%.1f' % priority
class AuthorSitemap(Sitemap):
"""Sitemap for authors"""
priority = 0.5
changefreq = 'monthly'
def items(self):
"""Return published authors"""
return Author.published.all()
def lastmod(self, obj):
"""Return last modification of an author"""
gbobjects = obj.gbobjects_published()
if not gbobjects:
return None
return gbobjects[0].creation_date
def location(self, obj):
"""Return url of an author"""
return reverse('objectapp_author_detail', args=[obj.username])
class TagSitemap(Sitemap):
"""Sitemap for tags"""
changefreq = 'monthly'
def cache(self, tags):
"""Cache tag's gbobjects percent on total gbobjects"""
len_gbobjects = float(Gbobject.published.count())
self.cache_tags = {}
for tag in tags:
gbobjects = TaggedItem.objects.get_by_model(
Gbobject.published.all(), tag)
self.cache_tags[tag.pk] = (gbobjects, gbobjects.count() / len_gbobjects)
def items(self):
"""Return all tags with coeff"""
tags = tags_published()
self.cache(tags)
return tags
def lastmod(self, obj):
"""Return last modification of a tag"""
gbobjects = self.cache_tags[obj.pk][0]
return gbobjects[0].creation_date
def priority(self, obj):
"""Compute priority with cached coeffs"""
priority = 0.5 + self.cache_tags[obj.pk][1]
if priority > 1.0:
priority = 1.0
return '%.1f' % priority
def location(self, obj):
"""Return url of a tag"""
return reverse('objectapp_tag_detail', args=[obj.name])