some things

apps/threads.lua

@@ -64,6 +64,10 @@ app:get("thread", "/:slug", function(self)
     return {status = 404}
   end
   self.thread = thread
+  local post_count = Posts:count(db.clause({
+    thread_id = thread.id
+  }))
+  local pages = math.floor(post_count / 20)
   local posts = db.query([[
     SELECT
       posts.id, post_history.content, users.username, avatars.file_path AS avatar_path
@@ -81,6 +85,7 @@ app:get("thread", "/:slug", function(self)
       posts.created_at ASC
     LIMIT 20
   ]], thread.id, tonumber(self.params.cursor or 0))
+  self.topic = Topics:find(thread.topic_id)
   self.user = util.get_logged_in_user_or_transient(self)
   self.posts = posts
   self.next_cursor = #posts > 0 and posts[#posts].id or nil