make Haven resilant to feeds that have items missing links

Author: mawise

app/views/feeds/read.html.erb

@@ -54,7 +54,7 @@ end
       <source src="<%= entry.audio %>" type="audio/mpeg">
     </audio> 
   <% end %>
-  <% if entry.link.start_with? "https://www.youtube.com/watch?v=" 
+  <% if !entry.link.nil? && entry.link.start_with?("https://www.youtube.com/watch?v=")
        video_id = entry.link.split("?v=").last.split("&").first
        video_img = "https://img.youtube.com/vi/#{video_id}/0.jpg"
      %>

lib/haven_feed_entry.rb

@@ -10,6 +10,7 @@ def initialize(feed, item)
       @feed_title = feed.channel.title
       @title = item.title
       @link = item.link
+      @link = "" if @link.nil?  ## prevent missing links from pulling nils into the DB
       @date = parse_time(item.date)
       @content = item.description
       @content = item.content_encoded if item.content_encoded