Support all number helpers of ActiveSupport::NumberHelper (#2427)

docs/customizing_dashboards.md

@@ -171,8 +171,7 @@ more results than expected. Default is `false`.
 and works by  by passing a hash that includes the formatter (`formatter`) and
 the options for the formatter (`formatter_options`). Defaults to the locale's
 delimiter when `formatter_options` does not include a `delimiter`. See the
-example below. Note that currently only
-`ActiveSupport::NumberHelper.number_to_delimited` is supported.
+example below. All helpers from `ActiveSupport::NumberHelper` are supported.
 
 For example, you might use the following to display U.S. currency:
 

lib/administrate/field/number.rb

@@ -38,14 +38,8 @@ def format(result)
         formatter = options[:format][:formatter]
         formatter_options = options[:format][:formatter_options].to_h
 
-        case formatter
-        when :number_to_delimited
-          ActiveSupport::NumberHelper.number_to_delimited(
-            result, **formatter_options
-          )
-        else
-          result
-        end
+        ActiveSupport::NumberHelper.
+          try(formatter, result, **formatter_options) || result
       end
     end
   end

spec/lib/fields/number_spec.rb

@@ -112,6 +112,15 @@
         end
       end
 
+      context "when `formatter: :number_to_currency`" do
+        it "includes the currency" do
+          with_currency = number_with_options(
+            100, format: { formatter: :number_to_currency }
+          )
+          expect(with_currency.to_s).to eq("$100.00")
+        end
+      end
+
       context "when passed incorrect `formatter`" do
         it "works" do
           thousand = number_with_options(1_000, format: { formatter: :rubbish })