remove story downvoting, add story hiding

stories should either be reported for spam (coming later), upvoted,
or left alone rather than being downvoted for being uninteresting.
since users don't like leaving uninteresting things alone, they can
now hide stories from their view without affecting the story's
score.

hiding is implemented as a Vote with its vote set to 0 and the
reason set to "H"

add a /hidden url which shows all of a user's hidden stories

while i'm here, simplify Vote guts and add some tests to make sure
all the flip-flopping stuff works right

app/assets/javascripts/application.js.erb

@@ -7,35 +7,40 @@
 var _Lobsters = Class.extend({
   curUser: null,
 
-  storyDownvoteReasons: { <%= Vote::STORY_REASONS.map{|k,v|
-      "#{k.inspect}: #{v.inspect}" }.join(", ") %> },
   commentDownvoteReasons: { <%= Vote::COMMENT_REASONS.map{|k,v|
       "#{k.inspect}: #{v.inspect}" }.join(", ") %> },
 
-  upvote: function(voterEl) {
+  upvoteStory: function(voterEl) {
     Lobsters.vote("story", voterEl, 1);
   },
-  downvote: function(voterEl) {
-    Lobsters._showDownvoteWhyAt("story", voterEl, function(k) {
-      Lobsters.vote("story", voterEl, -1, k); });
+  hideStory: function(hiderEl) {
+    if (!Lobsters.curUser)
+      return Lobsters.bounceToLogin();
+
+    var li = $(hiderEl).closest(".story, .comment");
+    var act;
+
+    if (li.hasClass("hidden")) {
+      act = "unhide";
+      li.removeClass("hidden");
+      hiderEl.innerHTML = "hide";
+    } else {
+      act = "hide";
+      li.addClass("hidden");
+      hiderEl.innerHTML = "unhide";
+    }
+
+    $.post("/stories/" + li.attr("data-shortid") + "/" + act);
   },
 
   upvoteComment: function(voterEl) {
     Lobsters.vote("comment", voterEl, 1);
   },
   downvoteComment: function(voterEl) {
-    Lobsters._showDownvoteWhyAt("comment", voterEl, function(k) {
-      Lobsters.vote("comment", voterEl, -1, k); });
-  },
-
-  _showDownvoteWhyAt: function(thingType, voterEl, onChooseWhy) {
-    if (!Lobsters.curUser)
-      return Lobsters.bounceToLogin();
-
     var li = $(voterEl).closest(".story, .comment");
     if (li.hasClass("downvoted")) {
       /* already upvoted, neutralize */
-      Lobsters.vote(thingType, voterEl, -1, null);
+      Lobsters.vote("comment", voterEl, -1, null);
       return;
     }
 
@@ -53,13 +58,7 @@ var _Lobsters = Class.extend({
 
     var d = $("<div id=\"downvote_why\"></div>");
 
-    var reasons;
-    if (thingType == "comment")
-      reasons = Lobsters.commentDownvoteReasons;
-    else
-      reasons = Lobsters.storyDownvoteReasons;
-
-    $.each(reasons, function(k, v) {
+    $.each(Lobsters.commentDownvoteReasons, function(k, v) {
       var a = $("<a href=\"#\"" + (k == "" ? " class=\"cancelreason\"" : "") +
         ">" + v + "</a>");
 
@@ -68,7 +67,7 @@ var _Lobsters = Class.extend({
         $("#downvote_why_shadow").remove();
 
         if (k != "")
-          onChooseWhy(k);
+          Lobsters.vote("comment", voterEl, -1, k);
 
         return false;
       });
@@ -205,8 +204,7 @@ var _Lobsters = Class.extend({
     })
     .success(function(data) {
       if (data && data.title)
-        title_field.val(data.title.substr(0,
-          title_field.maxLength));
+        title_field.val(data.title.substr(0, title_field.maxLength));
 
       button.val(old_value);
       button.prop("disabled", false);
@@ -220,6 +218,7 @@ var _Lobsters = Class.extend({
   bounceToLogin: function() {
     document.location = "/login?return=" +
       encodeURIComponent(document.location);
+    return false;
   },
 });
 
@@ -235,12 +234,12 @@ $(document).ready(function() {
     return false;
   });
 
-  $("li.story a.downvoter").click(function() {
-    Lobsters.downvote(this);
+  $("li.story a.upvoter").click(function() {
+    Lobsters.upvoteStory(this);
     return false;
   });
-  $("li.story a.upvoter").click(function() {
-    Lobsters.upvote(this);
+  $("li.story a.hider").click(function() {
+    Lobsters.hideStory(this);
     return false;
   });
 

app/assets/stylesheets/application.css

@@ -509,6 +509,12 @@ li .byline a.inactive_user {
 	text-decoration: line-through;
 }
 
+li.story.hidden {
+	opacity: 0.25;
+}
+ol.show_hidden li.story.hidden {
+	opacity: 1.0 !important;
+}
 
 li.story.expired {
 	opacity: 0.6;

app/controllers/home_controller.rb

@@ -10,6 +10,15 @@ class HomeController < ApplicationController
   # for rss feeds, load the user's tag filters if a token is passed
   before_filter :find_user_from_rss_token, :only => [ :index, :newest ]
 
+  def hidden
+    @stories = find_stories({ :hidden => true })
+
+    @heading = @title = "Hidden Stories"
+    @cur_url = "/hidden"
+
+    render :action => "index"
+  end
+
   def index
     @stories = find_stories
 
@@ -38,7 +47,6 @@ def newest
 
     @heading = @title = "Newest Stories"
     @cur_url = "/newest"
-    @newest = true
 
     @rss_link = "<link rel=\"alternate\" type=\"application/rss+xml\" " <<
       "title=\"RSS 2.0 - Newest Items\" href=\"/newest.rss" <<
@@ -76,7 +84,6 @@ def recent
 
     @heading = @title = "Recent Stories"
     @cur_url = "/recent"
-    @recent = true
 
     render :action => "index"
   end
@@ -145,14 +152,28 @@ def find_stories(how = {})
   def _find_stories(how)
     stories = Story.where(:is_expired => false)
 
-    if @user && !(how[:newest] || how[:by_user])
-      # exclude downvoted items
+    if @user && !how[:by_user] && !how[:hidden]
+      # exclude downvoted and hidden items
       stories = stories.where(
         Story.arel_table[:id].not_in(
           Vote.arel_table.where(
             Vote.arel_table[:user_id].eq(@user.id)
           ).where(
-            Vote.arel_table[:vote].lt(0)
+            Vote.arel_table[:vote].lteq(0)
+          ).where(
+            Vote.arel_table[:comment_id].eq(nil)
+          ).project(
+            Vote.arel_table[:story_id]
+          )
+        )
+      )
+    elsif @user && how[:hidden]
+      stories = stories.where(
+        Story.arel_table[:id].in(
+          Vote.arel_table.where(
+            Vote.arel_table[:user_id].eq(@user.id)
+          ).where(
+            Vote.arel_table[:vote].eq(0)
           ).where(
             Vote.arel_table[:comment_id].eq(nil)
           ).project(

app/controllers/stories_controller.rb

@@ -1,6 +1,6 @@
 class StoriesController < ApplicationController
   before_filter :require_logged_in_user_or_400,
-    :only => [ :upvote, :downvote, :unvote, :preview ]
+    :only => [ :upvote, :unvote, :hide, :unhide, :preview ]
 
   before_filter :require_logged_in_user, :only => [ :destroy, :create, :edit,
     :fetch_url_title, :new ]
@@ -201,21 +201,24 @@ def upvote
     render :text => "ok"
   end
 
-  def downvote
+  def hide
     if !(story = find_story)
       return render :text => "can't find story", :status => 400
     end
 
-    if !Vote::STORY_REASONS[params[:reason]]
-      return render :text => "invalid reason", :status => 400
-    end
+    Vote.vote_thusly_on_story_or_comment_for_user_because(0, story.id,
+      nil, @user.id, "H")
+
+    render :text => "ok"
+  end
 
-    if !@user.can_downvote?(story)
-      return render :text => "not permitted to downvote", :status => 400
+  def unhide
+    if !(story = find_story)
+      return render :text => "can't find story", :status => 400
     end
 
-    Vote.vote_thusly_on_story_or_comment_for_user_because(-1, story.id,
-      nil, @user.id, params[:reason])
+    Vote.vote_thusly_on_story_or_comment_for_user_because(0, story.id,
+      nil, @user.id, nil)
 
     render :text => "ok"
   end

app/models/story.rb

@@ -10,8 +10,6 @@ class Story < ActiveRecord::Base
   validates_length_of :description, :maximum => (64 * 1024)
   validates_presence_of :user_id
 
-  DOWNVOTABLE_DAYS = 14
-
   # after this many minutes old, a story cannot be edited
   MAX_EDIT_MINS = 30
 
@@ -119,8 +117,7 @@ def assign_short_id_and_upvote
   end
 
   def calculated_hotness
-    # don't immediately kill stories at 0 by bumping up score by one
-    order = Math.log([ (score + 1).abs, 1 ].max, 10)
+    order = Math.log([ score.abs, 1 ].max, 10)
     if score > 0
       sign = 1
     elsif score < 0
@@ -226,14 +223,6 @@ def give_upvote_or_downvote_and_recalculate_hotness!(upvote, downvote)
       "hotness = '#{self.calculated_hotness}' WHERE id = #{self.id.to_i}")
   end
 
-  def is_downvotable?
-    if self.created_at
-      Time.now - self.created_at <= DOWNVOTABLE_DAYS.days
-    else
-      false
-    end
-  end
-
   def is_editable_by_user?(user)
     if user && user.is_moderator?
       return true
@@ -406,26 +395,4 @@ def url_is_editable_by_user?(user)
   def url_or_comments_url
     self.url.blank? ? self.comments_url : self.url
   end
-
-  def vote_summary_for(user)
-    r_counts = {}
-    r_whos = {}
-    Vote.where(:story_id => self.id, :comment_id => nil).each do |v|
-      r_counts[v.reason.to_s] ||= 0
-      r_counts[v.reason.to_s] += v.vote
-      if user && user.is_moderator?
-        r_whos[v.reason.to_s] ||= []
-        r_whos[v.reason.to_s].push v.user.username
-      end
-    end
-
-    r_counts.keys.sort.map{|k|
-      if k == ""
-        "+#{r_counts[k]}"
-      else
-        "#{r_counts[k]} #{Vote::STORY_REASONS[k]}" +
-          (user && user.is_moderator?? " (#{r_whos[k].join(", ")})" : "")
-      end
-    }.join(", ")
-  end
 end

app/models/vote.rb

@@ -2,16 +2,6 @@ class Vote < ActiveRecord::Base
   belongs_to :user
   belongs_to :story
 
-  STORY_REASONS = {
-    "O" => "Off-topic",
-    "Q" => "Low Quality",
-    "A" => "Already Posted",
-    "T" => "Poorly Tagged",
-    "L" => "Poorly Titled",
-    "S" => "Spam",
-    "" => "Cancel",
-  }
-
   COMMENT_REASONS = {
     "O" => "Off-topic",
     "I" => "Incorrect",
@@ -82,7 +72,7 @@ def self.vote_thusly_on_story_or_comment_for_user_because(vote, story_id,
     v = Vote.where(:user_id => user_id, :story_id => story_id,
       :comment_id => comment_id).first_or_initialize
 
-    if !v.new_record? && v.vote == vote
+    if !v.new_record? && v.vote == vote && vote != 0
       return
     end
 
@@ -91,35 +81,22 @@ def self.vote_thusly_on_story_or_comment_for_user_because(vote, story_id,
 
     Vote.transaction do
       # unvote
-      if vote == 0
-        if !v.new_record?
-          if v.vote == -1
-            downvote = -1
-          else
-            upvote = -1
-          end
-        end
-
-        v.destroy
+      if vote == 0 && reason == nil
+        # neutralize previous vote
+        upvote = (v.vote == 1 ? -1 : 0)
+        downvote = (v.vote == -1 ? -1 : 0)
+        v.destroy!
 
       # new vote or change vote
       else
-        if v.new_record?
-          if vote == -1
-            downvote = 1
-          else
-            upvote = 1
-          end
-        elsif v.vote == -1
-          # changing downvote to upvote
-          downvote = -1
-          upvote = 1
-        elsif v.vote == 1
-          # changing upvote to downvote
-          upvote = -1
-          downvote = 1
+        if !v.new_record?
+          upvote = (v.vote == 1 ? -1 : 0)
+          downvote = (v.vote == -1 ? -1 : 0)
         end
 
+        upvote += (vote == 1 ? 1 : 0)
+        downvote += (vote == -1 ? 1 : 0)
+
         v.vote = vote
         v.reason = reason
         v.save!

app/views/home/index.html.erb

@@ -1,21 +1,20 @@
-<ol class="stories list">
+<ol class="stories list <%= @cur_url == "/hidden" ? "show_hidden" : "" %>">
   <%= render :partial => "stories/listdetail", :collection => @stories,
     :as => :story %>
 </ol>
 
 <div class="morelink">
   <% if @page && @page > 1 %>
-    <a href="<%= @tag ? "/t/#{@tag.tag}" : (@newest ? "/newest" +
-      (@for_user ? "/#{@for_user}" : "") : "") %><%= @page == 2 ? "/" :
-      "/page/#{@page - 1}" %>">&lt;&lt; Page <%= @page - 1 %></a>
+    <a href="<%= @cur_url %><%= @cur_url == "/" ? "" : "/" %><%=
+      @page == 2 ? "" : "page/#{@page - 1}" %>">&lt;&lt; Page
+      <%= @page - 1 %></a>
   <% end %>
 
   <% if @show_more %>
     <% if @page && @page > 1 %>
       |
     <% end %>
-    <a href="<%= @tag ? "/t/#{@tag.tag}" : (@newest ? "/newest" +
-      (@for_user ? "/#{@for_user}" : "") : "") %>/page/<%= @page + 1 %>">Page
-      <%= @page + 1 %> &gt;&gt;</a>
+    <a href="<%= @cur_url %><%= @cur_url == "/" ? "" : "/" %>page/<%=
+      @page + 1 %>">Page <%= @page + 1 %> &gt;&gt;</a>
   <% end %>
 </div>