110 lines
3.6 KiB
Python
110 lines
3.6 KiB
Python
# GNU MediaGoblin -- federated, autonomous media hosting
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# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from mediagoblin.db.util import DESCENDING
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from mediagoblin.tools.pagination import Pagination
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from mediagoblin.tools.response import render_to_response
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from mediagoblin.decorators import uses_pagination
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from werkzeug.contrib.atom import AtomFeed
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def _get_tag_name_from_entries(media_entries, tag_slug):
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"""
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Get a tag name from the first entry by looking it up via its slug.
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"""
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# ... this is slightly hacky looking :\
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tag_name = tag_slug
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if media_entries.count():
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for tag in media_entries[0]['tags']:
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if tag['slug'] == tag_slug:
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tag_name == tag['name']
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break
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return tag_name
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@uses_pagination
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def tag_listing(request, page):
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"""'Gallery'/listing for this tag slug"""
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tag_slug = request.matchdict[u'tag']
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cursor = request.db.MediaEntry.find(
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{u'state': u'processed',
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u'tags.slug': tag_slug})
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cursor = cursor.sort('created', DESCENDING)
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pagination = Pagination(page, cursor)
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media_entries = pagination()
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tag_name = _get_tag_name_from_entries(media_entries, tag_slug)
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return render_to_response(
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request,
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'mediagoblin/listings/tag.html',
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{'tag_slug': tag_slug,
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'tag_name': tag_name,
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'media_entries': media_entries,
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'pagination': pagination})
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ATOM_DEFAULT_NR_OF_UPDATED_ITEMS = 15
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def tag_atom_feed(request):
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"""
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generates the atom feed with the tag images
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"""
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tag_slug = request.matchdict[u'tag']
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cursor = request.db.MediaEntry.find(
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{u'state': u'processed',
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u'tags.slug': tag_slug})
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cursor = cursor.sort('created', DESCENDING)
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cursor = cursor.limit(ATOM_DEFAULT_NR_OF_UPDATED_ITEMS)
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"""
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ATOM feed id is a tag URI (see http://en.wikipedia.org/wiki/Tag_URI)
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"""
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feed = AtomFeed(
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"MediaGoblin: Feed for tag '%s'" % tag_slug,
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feed_url=request.url,
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id='tag:'+request.host+',2011:gallery.tag-%s' % tag_slug,
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links=[{'href': request.urlgen(
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'mediagoblin.listings.tags_listing',
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qualified=True, tag=tag_slug ),
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'rel': 'alternate',
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'type': 'text/html'}])
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for entry in cursor:
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feed.add(entry.get('title'),
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entry.get('description_html'),
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id=entry.url_for_self(request.urlgen,qualified=True),
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content_type='html',
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author={'name': entry.get_uploader.username,
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'uri': request.urlgen(
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'mediagoblin.user_pages.user_home',
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qualified=True, user=entry.get_uploader.username)},
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updated=entry.get('created'),
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links=[{
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'href':entry.url_for_self(
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request.urlgen,
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qualified=True),
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'rel': 'alternate',
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'type': 'text/html'}])
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return feed.get_response()
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