From ce8a148cbe6fce7a0cf2bbc0b0df88f9af5cf895 Mon Sep 17 00:00:00 2001
From: joshua stein <jcs@jcs.org>
Date: Tue, 15 Dec 2015 12:35:18 -0600
Subject: [PATCH] Story: don't count comments towards hotness when tag hotness
 mods < 0

---
 app/models/story.rb | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/app/models/story.rb b/app/models/story.rb
index f584b2e..c32f192 100644
--- a/app/models/story.rb
+++ b/app/models/story.rb
@@ -172,16 +172,17 @@ class Story < ActiveRecord::Base
   end
 
   def calculated_hotness
-    base = 0
-    self.tags.select{|t| t.hotness_mod != 0 }.each do |t|
-      base += t.hotness_mod
-    end
+    base = self.tags.map{|t| t.hotness_mod }.sum
 
-    # give a story's comment votes some weight, but ignore the story
-    # submitter's own comments
-    cpoints = self.comments.where("user_id <> ?", self.user_id).
-      select(:upvotes, :downvotes).map{|c| c.upvotes + 1 - c.downvotes }.
-      inject(&:+).to_f * 0.5
+    # give a story's comment votes some weight (unless the hotness mod is
+    # negative), but ignore the story submitter's own comments
+    if base < 0
+      cpoints = 0
+    else
+      cpoints = self.comments.where("user_id <> ?", self.user_id).
+        select(:upvotes, :downvotes).map{|c| c.upvotes + 1 - c.downvotes }.
+        inject(&:+).to_f * 0.5
+    end
 
     # don't immediately kill stories at 0 by bumping up score by one
     order = Math.log([ (score + 1).abs + cpoints, 1 ].max, 10)