lib/administrate/field/number.rb in administrate-0.5.0 vs lib/administrate/field/number.rb in administrate-0.6.0

@@ -2,15 +2,11 @@
 
 module Administrate
   module Field
     class Number < Field::Base
       def to_s
-        if data.nil?
-          "-"
-        else
-          format_string % value
-        end
+        data.nil? ? "-" : format_string % value
       end
 
       private
 
       def format_string
@@ -24,10 +20,12 @@
       def suffix
         options[:suffix].to_s
       end
 
       def decimals
-        options.fetch(:decimals, 0)
+        _left, right = data.to_s.split(".")
+        default = right.nil? ? 0 : right.size
+        options.fetch(:decimals, default)
       end
 
       def value
         data * options.fetch(:multiplier, 1)
       end