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module BraintreeFormHelper
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]
@braintree_existing = @options[:existing]
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]
elsif @braintree_existing
if @braintree_existing.kind_of?(Braintree::CreditCard)
case method
when :number
method = :masked_number
when :cvv
return nil
end
end
@braintree_existing.send(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
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