escape-nil-comparisons (#604)

* account for custom work types in #sort_entries

* do not export custom work entry types

Author: alishaevn

app/parsers/bulkrax/csv_parser.rb

@@ -283,6 +283,10 @@ def file_set_entry_class
       CsvFileSetEntry
     end
 
+    def valid_entry_types
+      ['Bulkrax::CsvCollectionEntry', 'Bulkrax::CsvFileSetEntry', 'Bulkrax::CsvEntry']
+    end
+
     # TODO: figure out why using the version of this method that's in the bagit parser
     # breaks specs for the "if importer?" line
     def total
@@ -325,6 +329,7 @@ def write_files
       require 'open-uri'
       folder_count = 0
       sorted_entries = sort_entries(importerexporter.entries.uniq(&:identifier))
+                       .select { |e| valid_entry_types.include?(e.type) }
 
       sorted_entries[0..limit || total].in_groups_of(records_split_count, false) do |group|
         folder_count += 1
@@ -391,12 +396,12 @@ def sort_entries(entries)
       # always export models in the same order: work, collection, file set
       entries.sort_by do |entry|
         case entry.type
-        when 'Bulkrax::CsvEntry'
-          '0'
         when 'Bulkrax::CsvCollectionEntry'
           '1'
         when 'Bulkrax::CsvFileSetEntry'
           '2'
+        else
+          '0'
         end
       end
     end