lib/relaton/db.rb in relaton-0.1.1 vs lib/relaton/db.rb in relaton-0.1.2

@@ -3,11 +3,11 @@
 
 module Relaton
   class RelatonError < StandardError; end
 
   class Db
-    SUPPORTED_GEMS = %w[ isobib rfcbib gbbib ].freeze
+    SUPPORTED_GEMS = %w[isobib rfcbib gbbib].freeze
 
     # @param global_cache [String] filename of global DB
     # @param local_cache [String] filename of local DB
     def initialize(global_cache, local_cache)
       @db = open_cache_biblio(global_cache)
@@ -64,11 +64,11 @@
     def to_xml
       return nil if @db.nil?
       @db.transaction do
         Nokogiri::XML::Builder.new(encoding: "UTF-8") do |xml|
           xml.documents do
-            @db.roots.each { |key| @db[key]["bib"].to_xml(xml, {}) }
+            @db.roots.each { |key| @db[key]&.fetch("bib")&.to_xml(xml, {}) }
           end
         end.to_xml
       end
     end
 
@@ -142,10 +142,10 @@
     # if cached reference is undated, expire it after 60 days
     # @param bib [Hash]
     # @param year [String]
     def valid_bib_entry?(bib, year)
       bib&.is_a?(Hash) && bib&.has_key?("bib") && bib&.has_key?("fetched") &&
-        (year || Date.today - Date.iso8601(bib["fetched"]) < 60)
+        (year || Date.today - bib["fetched"] < 60)
     end
 
     # @param filename [String] DB filename
     # @return [Hash]
     def open_cache_biblio(filename)