报名人数问题

app/controllers/trustie_hacks_controller.rb

@@ -15,7 +15,7 @@ class TrustieHacksController < ApplicationController
       hacks = hacks.where("name like ?", "%#{search}%")
     end
 
-    @hackathon_users_count = hacks ? 0 : hacks.sum(:hack_users_count)
+    @hackathon_users_count = hacks.blank? ? 0 : hacks.sum(:hack_users_count)
     @hacks_count = hacks.count
 
     @hacks = hacks.page(page).per(limit)