Add filter web UI

lib/frenzy/update_feeds.ex

@@ -81,6 +81,7 @@ defmodule Frenzy.UpdateFeeds do
     feed = Repo.preload(feed, :items)
 
     Enum.map(rss.items, fn entry ->
+      # todo: use Repo.exists for this
       if !Enum.any?(feed.items, fn item -> item.guid == entry.id end) do
         create_item(feed, entry)
       end
@@ -100,7 +101,7 @@ defmodule Frenzy.UpdateFeeds do
 
         {:err, reason} ->
           Logger.warn("Unable to fetch article for #{url}: #{reason}")
-          entry.content || entry.summary
+          entry.description
       end
 
     changeset =