Always use lower case URLs, fix date formatting and add full date title

app/helpers/embed_helper.rb

@@ -9,7 +9,7 @@ module EmbedHelper
       if dt.year == current.year
         dt.strftime("%e %b")
       else
-        dt.strftime("%e %b %Y")
+        dt.strftime("%b '%y")
       end
     end
   end

app/models/topic_embed.rb

@@ -7,7 +7,7 @@ class TopicEmbed < ActiveRecord::Base
   validates_presence_of :content_sha1
 
   def self.normalize_url(url)
-    url.sub(/\/$/, '')
+    url.downcase.sub(/\/$/, '').sub(/\-+/, '-')
   end
 
   # Import an article from a source (RSS/Atom/Other)
@@ -21,7 +21,7 @@ class TopicEmbed < ActiveRecord::Base
     end
     contents << "\n<hr>\n<small>#{I18n.t('embed.imported_from', link: "<a href='#{url}'>#{url}</a>")}</small>\n"
 
-    embed = TopicEmbed.where(embed_url: url).first
+    embed = TopicEmbed.where("lower(embed_url) = ?", url).first
     content_sha1 = Digest::SHA1.hexdigest(contents)
     post = nil
 
@@ -93,7 +93,7 @@ class TopicEmbed < ActiveRecord::Base
 
   def self.topic_id_for_embed(embed_url)
     embed_url = normalize_url(embed_url)
-    TopicEmbed.where(embed_url: embed_url).pluck(:topic_id).first
+    TopicEmbed.where("lower(embed_url) = ?", embed_url).pluck(:topic_id).first
   end
 
   def self.first_paragraph_from(html)

app/views/embed/comments.html.erb

@@ -10,7 +10,7 @@
 <%- if @topic_view.posts.present? %>
   <%- @topic_view.posts.each do |post| %>
     <article class='post<%- if post.trashed? %> deleted<% end %>' id='post-<%= post.id.to_s %>'>
-      <%= link_to embed_post_date(post.created_at), post.url, class: 'post-date', target: "_blank" %>
+      <%= link_to embed_post_date(post.created_at), post.url, title: post.created_at.strftime("%B %e, %Y %l:%M%P"), class: 'post-date', target: "_blank" %>
       <%- if post.reply_to_post.present? && !post.cooked.index('aside') %>
         <%= link_to I18n.t('embed.in_reply_to', username: post.reply_to_post.username), post.reply_to_post.url, 'data-link-to-post' => post.reply_to_post.id.to_s, :class => 'in-reply-to' %>
       <%- end %>