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-rw-r--r--billing/app/helpers/braintree_helper.rb50
1 files changed, 50 insertions, 0 deletions
diff --git a/billing/app/helpers/braintree_helper.rb b/billing/app/helpers/braintree_helper.rb
new file mode 100644
index 0000000..3d6e887
--- /dev/null
+++ b/billing/app/helpers/braintree_helper.rb
@@ -0,0 +1,50 @@
+module BraintreeHelper
+ class BraintreeFormBuilder < ActionView::Helpers::FormBuilder
+ include ActionView::Helpers::AssetTagHelper
+ include ActionView::Helpers::TagHelper
+
+ def initialize(object_name, object, template, options, proc)
+ super
+ @braintree_params = @options[:params]
+ @braintree_errors = @options[:errors]
+ end
+
+ def fields_for(record_name, *args, &block)
+ options = args.extract_options!
+ options[:builder] = BraintreeFormBuilder
+ options[:params] = @braintree_params && @braintree_params[record_name]
+ options[:errors] = @braintree_errors && @braintree_errors.for(record_name)
+ new_args = args + [options]
+ super record_name, *new_args, &block
+ end
+
+ def text_field(method, options = {})
+ has_errors = @braintree_errors && @braintree_errors.on(method).any?
+ field = super(method, options.merge(:value => determine_value(method)))
+ result = content_tag("div", field, :class => has_errors ? "fieldWithErrors" : "")
+ result.safe_concat validation_errors(method)
+ result
+ end
+
+ protected
+
+ def determine_value(method)
+ if @braintree_params
+ @braintree_params[method]
+ else
+ nil
+ end
+ end
+
+ def validation_errors(method)
+ if @braintree_errors && @braintree_errors.on(method).any?
+ @braintree_errors.on(method).map do |error|
+ content_tag("div", ERB::Util.h(error.message), {:style => "color: red;"})
+ end.join
+ else
+ ""
+ end
+ end
+ end
+end
+