From 8414cee6505bf0700add160ab11567806d5f699a Mon Sep 17 00:00:00 2001 From: chiu Date: Mon, 10 Feb 2020 19:42:44 +0800 Subject: [PATCH] fix nil error --- app/models/journal_paper.rb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/app/models/journal_paper.rb b/app/models/journal_paper.rb index fbc1265..3630718 100644 --- a/app/models/journal_paper.rb +++ b/app/models/journal_paper.rb @@ -58,7 +58,7 @@ class JournalPaper title << self.journal_title if self.journal_title.present? title << self.vol_no if (self.vol_no.present? && self.vol_no != "0") title << self.issue_no if (self.issue_no.present? && self.issue_no != "0") - title << "pp"+self.form_to_start+"-"+self.form_to_end if (self.form_to_start.present? && self.form_to_start != "0") + title << "pp"+self.form_to_start.to_s+"-"+self.form_to_end.to_s if (self.form_to_start.present? && self.form_to_start != "0") title << ( !self.journal_levels.blank? ? "(#{self.journal_levels.collect{|x| x.title}.join(', ')})" : nil) # if !self.publication_date.nil? # pd = self.publication_date.strftime("%Y-%m-%d").split('-')