lib/hammer_cli/output/formatters.rb in hammer_cli-0.0.14 vs lib/hammer_cli/output/formatters.rb in hammer_cli-0.0.15

@@ -1,22 +1,22 @@
 module HammerCLI::Output
   module Formatters
 
-    # Registry for formatters    
+    # Registry for formatters
     class FormatterLibrary
       def initialize(formatter_map={})
 
         @_formatters = {}
-        formatter_map.each do |type, formatters| 
+        formatter_map.each do |type, formatters|
           register_formatter(type, *Array(formatters))
         end
       end
 
       def register_formatter(type, *formatters)
         if @_formatters[type].nil?
           @_formatters[type] = FormatterContainer.new *formatters
-        else 
+        else
           formatters.each { |f| @_formatters[type].add_formatter(f) }
         end
       end
 
       def formatter_for_type(type)
@@ -28,11 +28,11 @@
     # All the tags the formatter has, needs to be present in the addapter.
     # Otherwise the formatter won't apply. Formatters with :flat tag are used first
     # as we expect them to serialize the value.
     #
     #   - by format: :flat x :data
-    #   - by output: :file X :screen 
+    #   - by output: :file X :screen
 
     # abstract formatter
     class FieldFormatter
 
       def tags
@@ -97,10 +97,16 @@
       def tags
         [:flat]
       end
 
       def format(list)
-        list.join(", ") if list
+        if list.is_a? Array
+          list.join(", ")
+        elsif list
+          list.to_s
+        else
+          ""
+        end
       end
     end
 
     HammerCLI::Output::Output.register_formatter(DateFormatter.new, :Date)
     HammerCLI::Output::Output.register_formatter(ListFormatter.new, :List)