Added forward and back links to blog posts

4 files changed, 40 insertions, 1 deletions

@@ -426,3 +426,27 @@
     text-decoration: none;
   }
 }
+
+.back-post, .next-post {
+  margin-left: 1em;
+  margin-bottom: 1em;
+  margin-right: 1em;
+
+  a, a:visited {
+    color: #555d66;
+    text-decoration: none;
+    font-size: .75em;
+  }
+
+  a:hover {
+    text-decoration: underline;
+  }
+}
+
+.back-post {
+  float: left;
+}
+
+.next-post {
+  float: right;
+}
@@ -24,6 +24,9 @@ class BlogsController < ApplicationController
     raise ActiveRecord::RecordNotFound unless @blog
     raise ActiveRecord::RecordNotFound unless @blog.published
 
+    @prev = @blog.prev
+    @next = @blog.next
+
     body = Redcarpet::Markdown.new(Redcarpet::Render::StripDown).render(@blog.body)
 
     set_meta_tags(og: {
@@ -48,6 +48,14 @@ class Blog < ApplicationRecord
     end
   end
 
+  def prev
+    Blog.where(published: true).where("published_at < ?", published_at).order(published_at: :desc).first
+  end
+
+  def next
+    Blog.where(published: true).where("published_at > ?", published_at).order(published_at: :asc).first
+  end
+
   private
     def set_draft_title
       if self.title.blank? and not self.published
@@ -1,4 +1,8 @@
 - title @blog.title
-.breadcrumb= link_to "← Back to home page", root_path
+- unless @prev.nil?
+  .back-post= link_to "← #{@prev.title}", @prev
+- unless @next.nil?
+  .next-post= link_to "#{@next.title} →", @next
+.clear
 = render @blog, short: false
 = show_comments(@blog)