Add money form field

app/helpers/default_form_builder.rb

@@ -3,4 +3,8 @@ class DefaultFormBuilder < ActionView::Helpers::FormBuilder
     self.multipart = true
     @template.legal_document_field(@object_name, method, objectify_options(options))
   end
+
+  def money_field(method, options = {})
+    @template.money_field(@object_name, method, objectify_options(options))
+  end
 end

app/helpers/form_helper.rb

@@ -5,4 +5,11 @@ module FormHelper
 
     file_field(object_name, method, options)
   end
+
+  def money_field(object_name, method, options = {})
+    options[:pattern] = '^[0-9.]+$' unless options[:pattern]
+    options[:maxlength] = 255 unless options[:maxlength]
+
+    text_field(object_name, method, options)
+  end
 end

spec/views/shared_examples/money_form_field.rb

@@ -0,0 +1,11 @@
+RSpec.shared_examples 'money form field' do
+  it 'has max length' do
+    render
+    expect(field[:maxlength]).to eq('255')
+  end
+
+  it 'has money pattern' do
+    render
+    expect(field[:pattern]).to eq('^[0-9.]+$')
+  end
+end