From d53e9a48c78ba49842f39f958e3d8ea8371f76aa Mon Sep 17 00:00:00 2001
From: chiu <naruto0426@rulingcom.com>
Date: Tue, 12 Nov 2019 22:23:52 +0800
Subject: [PATCH] Update book.rb fix error

---
 app/models/book.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/models/book.rb b/app/models/book.rb
index 63ea980..a67e0ba 100644
--- a/app/models/book.rb
+++ b/app/models/book.rb
@@ -40,7 +40,9 @@ class Book
   before_validation :add_http
 
   scope :sort_for_frontend, ->{ where(:is_hidden=>false).order_by(:year => "desc", :publish_date => "desc", :publication_date => "desc") }
-
+  def book_paper_type
+    self.book_type.title rescue ""
+  end
   def create_link
     title = []
     # title << self.member_profile.name if self.member_profile.present?