Apply consistency & PEP8 to atom feeds

This patch applies the atom feed thumbnail changes from 65d8ca7 to user
atom feeds and rearranges the code in both views for better consistency
with PEP8 and with each other. It also fixes a spacing issue with the
feed title on the main page.

mediagoblin/listings/views.py

@@ -73,17 +73,23 @@ def atom_feed(request):
     tag_slug = request.matchdict.get(u'tag')
     feed_title = "MediaGoblin Feed"
     if tag_slug:
-        cursor = media_entries_for_tag_slug(request.db, tag_slug)
+        feed_title += " for tag '%s'" % tag_slug
         link = request.urlgen('mediagoblin.listings.tags_listing',
                               qualified=True, tag=tag_slug )
-        feed_title += "for tag '%s'" % tag_slug
+        cursor = media_entries_for_tag_slug(request.db, 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"
+        link = request.urlgen('index', qualified=True)
+        cursor = MediaEntry.query.filter_by(state=u'processed')
+    cursor = cursor.order_by(MediaEntry.created.desc())
+    cursor = cursor.limit(ATOM_DEFAULT_NR_OF_UPDATED_ITEMS)
 
-    atomlinks = [
-        {'href': link,
+
+    """
+    ATOM feed id is a tag URI (see http://en.wikipedia.org/wiki/Tag_URI)
+    """
+    atomlinks = [{
+        'href': link,
         'rel': 'alternate',
         'type': 'text/html'}]
 
@@ -93,9 +99,6 @@ def atom_feed(request):
                 'rel': 'hub',
                 'href': push_url})
 
-    cursor = cursor.order_by(MediaEntry.created.desc())
-    cursor = cursor.limit(ATOM_DEFAULT_NR_OF_UPDATED_ITEMS)
-
     feed = AtomFeed(
         feed_title,
         feed_url=request.url,
@@ -111,14 +114,17 @@ def atom_feed(request):
         else:
             content = entry.description_html
 
-        feed.add(entry.get('title'),
+        feed.add(
+            entry.get('title'),
             content,
             id=entry.url_for_self(request.urlgen, qualified=True),
             content_type='html',
-            author={'name': entry.get_actor.username,
+            author={
+                'name': entry.get_actor.username,
                 'uri': request.urlgen(
                     'mediagoblin.user_pages.user_home',
-                    qualified=True, user=entry.get_actor.username)},
+                    qualified=True,
+                    user=entry.get_actor.username)},
             updated=entry.get('created'),
             links=[{
                 'href': entry.url_for_self(

mediagoblin/user_pages/views.py

@@ -24,6 +24,7 @@ from mediagoblin import messages, mg_globals
 from mediagoblin.db.models import (MediaEntry, MediaTag, Collection, Comment,
                                    CollectionItem, LocalUser, Activity, \
                                    GenericModelReference)
+from mediagoblin.plugins.api.tools import get_media_file_paths
 from mediagoblin.tools.response import render_to_response, render_404, \
     redirect, redirect_obj
 from mediagoblin.tools.text import cleaned_markdown_conversion
@@ -538,23 +539,21 @@ def atom_feed(request):
         username = request.matchdict['user']).first()
     if not user or not user.has_privilege(u'active'):
         return render_404(request)
+    feed_title = "MediaGoblin Feed for user '%s'" % request.matchdict['user']
+    link = request.urlgen('mediagoblin.user_pages.user_home',
+                          qualified=True, user=request.matchdict['user'])
+    cursor = MediaEntry.query.filter_by(actor=user.id, state=u'processed')
+    cursor = cursor.order_by(MediaEntry.created.desc())
+    cursor = cursor.limit(ATOM_DEFAULT_NR_OF_UPDATED_ITEMS)
 
-    cursor = MediaEntry.query.filter_by(
-        actor = user.id,
-        state = u'processed').\
-        order_by(MediaEntry.created.desc()).\
-        limit(ATOM_DEFAULT_NR_OF_UPDATED_ITEMS)
 
     """
     ATOM feed id is a tag URI (see http://en.wikipedia.org/wiki/Tag_URI)
     """
     atomlinks = [{
-           'href': request.urlgen(
-               'mediagoblin.user_pages.user_home',
-               qualified=True, user=request.matchdict['user']),
+        'href': link,
         'rel': 'alternate',
-           'type': 'text/html'
-           }]
+        'type': 'text/html'}]
 
     if mg_globals.app_config["push_urls"]:
         for push_url in mg_globals.app_config["push_urls"]:
@@ -563,7 +562,7 @@ def atom_feed(request):
                 'href': push_url})
 
     feed = AtomFeed(
-               "MediaGoblin: Feed for user '%s'" % request.matchdict['user'],
+        feed_title,
         feed_url=request.url,
         id='tag:{host},{year}:gallery.user-{user}'.format(
             host=request.host,
@@ -572,16 +571,25 @@ def atom_feed(request):
         links=atomlinks)
 
     for entry in cursor:
+        # Include a thumbnail image in content.
+        file_urls = get_media_file_paths(entry.media_files, request.urlgen)
+        if 'thumb' in file_urls:
+            content = '<img src="{thumb}" alt='' /> {desc}'.format(
+                thumb=file_urls['thumb'], desc=entry.description_html)
+        else:
+            content = entry.description_html
+
         feed.add(
             entry.get('title'),
-            entry.description_html,
+            content,
             id=entry.url_for_self(request.urlgen, qualified=True),
             content_type='html',
             author={
                 'name': entry.get_actor.username,
                 'uri': request.urlgen(
                     'mediagoblin.user_pages.user_home',
-                    qualified=True, user=entry.get_actor.username)},
+                    qualified=True,
+                    user=entry.get_actor.username)},
             updated=entry.get('created'),
             links=[{
                 'href': entry.url_for_self(