instiki/vendor/rails/activesupport/lib/active_support/core_ext/hash/conversions.rb
2007-01-22 07:43:50 -06:00

45 lines
1.6 KiB
Ruby

module ActiveSupport #:nodoc:
module CoreExtensions #:nodoc:
module Hash #:nodoc:
module Conversions
XML_TYPE_NAMES = {
"Fixnum" => "integer",
"Date" => "date",
"Time" => "datetime",
"TrueClass" => "boolean",
"FalseClass" => "boolean"
}
XML_FORMATTING = {
"date" => Proc.new { |date| date.to_s(:db) },
"datetime" => Proc.new { |time| time.xmlschema }
}
def to_xml(options = {})
options[:indent] ||= 2
options.reverse_merge!({ :builder => Builder::XmlMarkup.new(:indent => options[:indent]), :root => "hash" })
options[:builder].instruct! unless options.delete(:skip_instruct)
options[:builder].__send__(options[:root].to_s.dasherize) do
each do |key, value|
case value
when ::Hash
value.to_xml(options.merge({ :root => key, :skip_instruct => true }))
when ::Array
value.to_xml(options.merge({ :root => key, :children => key.to_s.singularize, :skip_instruct => true}))
else
type_name = XML_TYPE_NAMES[value.class.to_s]
options[:builder].tag!(key.to_s.dasherize,
XML_FORMATTING[type_name] ? XML_FORMATTING[type_name].call(value) : value,
options[:skip_types] || value.nil? || type_name.nil? ? { } : { :type => type_name }
)
end
end
end
end
end
end
end
end