# File lib/active_support/core_ext/hash/conversions.rb, line 161 def rename_key(key, options = {}) camelize = options.has_key?(:camelize) ? options[:camelize] : ActiveSupport.camelize_xml dasherize = options.has_key?(:dasherize) ? options[:dasherize] : ActiveSupport.dasherize_xml key = key.camelize if camelize key = key.dasherize if dasherize key end
Converts a hash into a string suitable for use as a URL query string. An optional namespace can be passed to enclose the param names (see example below).
{ :name => 'David', :nationality => 'Danish' }.to_query # => "name=David&nationality=Danish" { :name => 'David', :nationality => 'Danish' }.to_query('user') # => "user%5Bname%5D=David&user%5Bnationality%5D=Danish"
# File lib/active_support/core_ext/hash/conversions.rb, line 98 def to_query(namespace = nil) collect do |key, value| value.to_query(namespace ? "#{namespace}[#{key}]" : key) end.sort * '&' end
# File lib/active_support/core_ext/hash/conversions.rb, line 106 def to_xml(options = {}) require 'builder' unless defined?(Builder) options = options.dup options[:indent] ||= 2 options.reverse_merge!({ :builder => Builder::XmlMarkup.new(:indent => options[:indent]), :root => "hash" }) options[:builder].instruct! unless options.delete(:skip_instruct) root = rename_key(options[:root].to_s, options) options[:builder].__send__(:method_missing, root) 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})) when ::Method, ::Proc # If the Method or Proc takes two arguments, then # pass the suggested child element name. This is # used if the Method or Proc will be operating over # multiple records and needs to create an containing # element that will contain the objects being # serialized. if 1 == value.arity value.call(options.merge({ :root => key, :skip_instruct => true })) else value.call(options.merge({ :root => key, :skip_instruct => true }), key.to_s.singularize) end else if value.respond_to?(:to_xml) value.to_xml(options.merge({ :root => key, :skip_instruct => true })) else type_name = XML_TYPE_NAMES[value.class.name] key = rename_key(key.to_s, options) attributes = options[:skip_types] || value.nil? || type_name.nil? ? { } : { :type => type_name } if value.nil? attributes[:nil] = true end options[:builder].tag!(key, XML_FORMATTING[type_name] ? XML_FORMATTING[type_name].call(value) : value, attributes ) end end end yield options[:builder] if block_given? end end
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