First run at comments on content.

steveklabnik · steveklabnik · commit 0caf44c90b8e · 2010-12-25T21:53:10.000-05:00
This doesn't look spectacular, but it works. Sweet.
diff --git a/controllers/content.rb b/controllers/content.rb
@@ -15,3 +15,20 @@
   @content = Content.find(params[:id])
   haml :"content/show"
 end
+
+post "/content/:id/comment" do
+  @content = Content.first(:id => params[:id])
+  if current_user
+    params[:comment][:author] = current_user.username
+    params[:comment][:author_email] = current_user.email
+  else 
+    params[:comment][:author] = "Anonymous"
+    params[:comment][:author_email] = "anonymous@example.com"
+  end
+  @content.comments << Comment.new(params[:comment])
+  @content.save
+
+  flash[:notice] = "Replied!"
+  redirect "/content/#{@content.id}"
+end
+
diff --git a/helpers.rb b/helpers.rb
@@ -62,8 +62,8 @@ def require_login_or_api!(opts = {:return => "/"})
 
   #gives a gravatar url for an email
   def gravatar_url_for email
-    require 'md5'
-    "http://www.gravatar.com/avatar/#{MD5::md5(email.downcase)}"
+    require 'digest/md5'
+    "http://www.gravatar.com/avatar/#{Digest::MD5.hexdigest(email.downcase)}"
   end
 
 end
diff --git a/models/comment.rb b/models/comment.rb
@@ -0,0 +1,11 @@
+class Comment
+  include MongoMapper::EmbeddedDocument
+
+  #the body of the comment
+  key :body, String
+
+  #the person who wrote it
+  key :author, String
+  key :author_email, String
+
+end
diff --git a/models/content.rb b/models/content.rb
@@ -6,6 +6,8 @@ class Content
 
   key :author, String
   key :author_email, String
+
+  many :comments
  
   def image
     require 'digest/md5'
diff --git a/views/content/show.haml b/views/content/show.haml
@@ -2,3 +2,21 @@
 %p
   :markdown
     #{@content.body}
+- @content.comments.each do |reply|
+  %div
+    %a{:href => "/hackers/#{reply.author}"}
+      %img{:src => gravatar_url_for(reply.author_email), :alt => "#{reply.author.downcase}_gravatar", :class => "comment_gravatar"}
+  %div
+    %p
+      <a href="/hackers/#{reply.author}">#{reply.author}</a> says:
+    %p
+      = reply.body
+
+%h2 Add a comment
+%form{:action => "/content/#{@content.id}/comment", :method => "POST"}
+  %label{:for => "comment_body"} Body
+  %br
+  %textarea{:id => "comment_body", :name => "comment[body]", :rows => 20, :cols => 50}
+  %br
+  %input{:type => "submit", :value => "Submit", :class => "button"}
+  
