make linking to specific comments work

app/assets/stylesheets/application.css

@@ -359,7 +359,8 @@ li.downvoted div.voters a.downvoter {
 ol.stories li,
 ol.comments li {
 	clear: both;
-	padding-top: 1em;
+	padding-top: 0.5em;
+	padding-bottom: 0.5em;
 }
 ol.stories li:first-child {
 	padding-top: 0.5em;
@@ -382,6 +383,10 @@ ol.comments li.negative_7 {
 	opacity: 0.2;
 }
 
+ol.comments li.highlighted {
+	background-color: #ffffbf;
+}
+
 li .link {
 	font-weight: bold;
 	vertical-align: middle;
@@ -540,8 +545,8 @@ div#story_box div.markdown_help_toggler {
 	width: 610px;
 }
 
-div.comment_form_container {
-	max-width: 550px;
+div.comment_form_container, div.comment_reply {
+	max-width: 500px;
 }
 
 /* data tables */

app/controllers/stories_controller.rb

@@ -76,27 +76,67 @@ class StoriesController < ApplicationController
     end
   end
 
-   def show
-     @story = Story.find_by_short_id!(params[:id])
+  def show
+    @story = Story.find_by_short_id!(params[:id])
 
     @page_title = @story.title
 
-     @comments = Comment.ordered_for_story_or_thread_for_user(
-      @story.id, nil, @user ? @user.id : nil)
+    @comments = Comment.ordered_for_story_or_thread_for_user(@story.id, nil,
+      @user ? @user.id : nil)
     @comment = Comment.new
 
-     if @user
-       if v = Vote.find_by_user_id_and_story_id(@user.id, @story.id)
-         @story.vote = v.vote
+    if @user
+      if v = Vote.find_by_user_id_and_story_id(@user.id, @story.id)
+        @story.vote = v.vote
       end
  
-       @votes = Vote.comment_votes_by_user_for_story_hash(@user.id, @story.id)
-       @comments.each do |c|
-         if @votes[c.id]
-           c.current_vote = @votes[c.id]
+      @votes = Vote.comment_votes_by_user_for_story_hash(@user.id, @story.id)
+      @comments.each do |c|
+        if @votes[c.id]
+          c.current_vote = @votes[c.id]
         end
       end
-     end
+    end
+  end
+
+  def show_comment
+    @story = Story.find_by_short_id!(params[:id])
+
+    @page_title = @story.title
+
+    @showing_comment = Comment.find_by_short_id(params[:comment_short_id])
+
+    if !@showing_comment
+      flash[:error] = "Could not find comment.  It may have been deleted."
+      return redirect_to @story.comments_url
+    end
+
+    @comments = Comment.ordered_for_story_or_thread_for_user(@story.id,
+      @showing_comment.thread_id, @user ? @user.id : nil)
+
+    @comments.each do |c,x|
+      if c.id == @showing_comment.id
+        c.highlighted = true
+        break
+      end
+    end
+
+    @comment = Comment.new
+
+    if @user
+      if v = Vote.find_by_user_id_and_story_id(@user.id, @story.id)
+        @story.vote = v.vote
+      end
+ 
+      @votes = Vote.comment_votes_by_user_for_story_hash(@user.id, @story.id)
+      @comments.each do |c|
+        if @votes[c.id]
+          c.current_vote = @votes[c.id]
+        end
+      end
+    end
+
+    render :action => "show"
   end
 
   def undelete

app/models/comment.rb

@@ -9,7 +9,7 @@ class Comment < ActiveRecord::Base
   attr_accessible :comment
 
   attr_accessor :parent_comment_short_id, :current_vote, :previewing,
-    :indent_level
+    :indent_level, :highlighted
 
   before_create :assign_short_id_and_upvote
   after_create :assign_votes, :mark_submitter, :email_reply
@@ -150,6 +150,8 @@ class Comment < ActiveRecord::Base
     }
     recursor.call(nil, 0)
 
+    # TODO: handle deleted comments, show for user_id
+
     ordered
   end
   

app/views/comments/_comment.html.erb

@@ -1,6 +1,7 @@
 <li id="comment_<%= comment.short_id %>" data-shortid="<%= comment.short_id %>"
 class="comment <%= comment.current_vote ? (comment.current_vote[:vote] == 1 ?
 "upvoted" : "downvoted") : "" %>
+  <%= comment.highlighted ? "highlighted" : "" %>
 	<%= comment.score <= 0 ? "negative" : "" %>
 	<%= comment.score <= -3 ? "negative_3" : "" %>
 	<%= comment.score <= -5 ? "negative_5" : "" %>

config/routes.rb

@@ -37,6 +37,7 @@ Lobsters::Application.routes.draw do
   post "/comments/:story_id" => "comments#create"
   post "/comments/preview/:story_id" => "comments#preview"
 
+  get "/s/:id/:title/comments/:comment_short_id" => "stories#show_comment"
   get "/s/:id/(:title)" => "stories#show"
   get "/u/:id" => "users#show"