add tag seq nav

app/presenters/post_presenter.rb

@@ -16,7 +16,12 @@ class PostPresenter < Presenter
     path = options[:path_prefix] || "/posts"
     
     html =  %{<article class="post-preview" id="post_#{post.id}" data-id="#{post.id}" data-tags="#{h(post.tag_string)}" data-uploader="#{h(post.uploader_name)}" data-rating="#{post.rating}" data-width="#{post.image_width}" data-height="#{post.image_height}" data-flags="#{flags.join(' ')}" data-parent-id="#{post.parent_id}" data-has-children="#{post.has_children?}" data-score="#{post.score}">}
-    html << %{<a href="#{path}/#{post.id}">}
+    if options[:tags]
+      tag_param = "?tags=#{CGI::escape(options[:tags])}"
+    else
+      tag_param = nil
+    end
+    html << %{<a href="#{path}/#{post.id}#{tag_param}">}
     html << %{<img src="#{post.preview_file_url}" alt="#{h(post.tag_string)}">}
     html << %{</a>}
     html << %{</article>}

app/presenters/post_set_presenters/base.rb

@@ -12,7 +12,7 @@ module PostSetPresenters
       end
 
       posts.each do |post|
-        html << PostPresenter.preview(post)
+        html << PostPresenter.preview(post, :tags => template.params[:tags])
       end
 
       html.html_safe