1 files changed, 110 insertions, 0 deletions
diff --git a/mediagoblin/listings/views.py b/mediagoblin/listings/views.py
new file mode 100644
index 00000000..35af7148
--- /dev/null
+++ b/mediagoblin/listings/views.py
@@ -0,0 +1,110 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# 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/>.
+
+from mediagoblin.db.models import MediaEntry
+from mediagoblin.db.util import media_entries_for_tag_slug
+from mediagoblin.tools.pagination import Pagination
+from mediagoblin.tools.response import render_to_response
+from mediagoblin.decorators import uses_pagination
+
+from werkzeug.contrib.atom import AtomFeed
+
+
+def _get_tag_name_from_entries(media_entries, tag_slug):
+    """
+    Get a tag name from the first entry by looking it up via its slug.
+    """
+    # ... this is slightly hacky looking :\
+    tag_name = tag_slug
+
+    for entry in media_entries:
+        for tag in entry.tags:
+            if tag['slug'] == tag_slug:
+                tag_name = tag['name']
+                break
+        break
+    return tag_name
+
+
+@uses_pagination
+def tag_listing(request, page):
+    """'Gallery'/listing for this tag slug"""
+    tag_slug = request.matchdict[u'tag']
+
+    cursor = media_entries_for_tag_slug(request.db, tag_slug)
+    cursor = cursor.order_by(MediaEntry.created.desc())
+
+    pagination = Pagination(page, cursor)
+    media_entries = pagination()
+
+    tag_name = _get_tag_name_from_entries(media_entries, tag_slug)
+
+    return render_to_response(
+        request,
+        'mediagoblin/listings/tag.html',
+        {'tag_slug': tag_slug,
+         'tag_name': tag_name,
+         'media_entries': media_entries,
+         'pagination': pagination})
+
+
+ATOM_DEFAULT_NR_OF_UPDATED_ITEMS = 15
+
+
+def atom_feed(request):
+    """
+    generates the atom feed with the tag images
+    """
+    tag_slug = request.matchdict.get(u'tag')
+    feed_title = "MediaGoblin Feed"
+    if tag_slug:
+        cursor = media_entries_for_tag_slug(request.db, tag_slug)
+        link = request.urlgen('mediagoblin.listings.tags_listing',
+                              qualified=True, tag=tag_slug )
+        feed_title += "for tag '%s'" % tag_slug
+    else: # all recent item feed
+        cursor = MediaEntry.query.filter_by(state=u'processed')
+        link = request.urlgen('index', qualified=True)
+        feed_title += "for all recent items"
+
+    cursor = cursor.order_by(MediaEntry.created.desc())
+    cursor = cursor.limit(ATOM_DEFAULT_NR_OF_UPDATED_ITEMS)
+
+    feed = AtomFeed(
+        feed_title,
+        feed_url=request.url,
+        id=link,
+        links=[{'href': link,
+            'rel': 'alternate',
+            'type': 'text/html'}])
+    for entry in cursor:
+        feed.add(entry.get('title'),
+            entry.description_html,
+            id=entry.url_for_self(request.urlgen,qualified=True),
+            content_type='html',
+            author={'name': entry.get_uploader.username,
+                'uri': request.urlgen(
+                    'mediagoblin.user_pages.user_home',
+                    qualified=True, user=entry.get_uploader.username)},
+            updated=entry.get('created'),
+            links=[{
+                'href':entry.url_for_self(
+                   request.urlgen,
+                   qualified=True),
+                'rel': 'alternate',
+                'type': 'text/html'}])
+
+    return feed.get_response()