Module: ActiveSupport::CoreExtensions::Hash::Conversions
- Included in:
- Hash
- Defined in:
- lib/active_support/core_ext/hash/conversions.rb
Defined Under Namespace
Modules: ClassMethods, FileLike
Constant Summary collapse
- XML_TYPE_NAMES =
{ "Symbol" => "symbol", "Fixnum" => "integer", "Bignum" => "integer", "BigDecimal" => "decimal", "Float" => "float", "TrueClass" => "boolean", "FalseClass" => "boolean", "Date" => "date", "DateTime" => "datetime", "Time" => "datetime", "ActiveSupport::TimeWithZone" => "datetime" }
- XML_FORMATTING =
{ "symbol" => Proc.new { |symbol| symbol.to_s }, "date" => Proc.new { |date| date.to_s(:db) }, "datetime" => Proc.new { |time| time.xmlschema }, "binary" => Proc.new { |binary| ActiveSupport::Base64.encode64(binary) }, "yaml" => Proc.new { |yaml| yaml.to_yaml } }
- XML_PARSING =
{ "symbol" => Proc.new { |symbol| symbol.to_sym }, "date" => Proc.new { |date| ::Date.parse(date) }, "datetime" => Proc.new { |time| ::Time.parse(time).utc rescue ::DateTime.parse(time).utc }, "integer" => Proc.new { |integer| integer.to_i }, "float" => Proc.new { |float| float.to_f }, "decimal" => Proc.new { |number| BigDecimal(number) }, "boolean" => Proc.new { |boolean| %w(1 true).include?(boolean.strip) }, "string" => Proc.new { |string| string.to_s }, "yaml" => Proc.new { |yaml| YAML::load(yaml) rescue yaml }, "base64Binary" => Proc.new { |bin| ActiveSupport::Base64.decode64(bin) }, "file" => Proc.new do |file, entity| f = StringIO.new(ActiveSupport::Base64.decode64(file)) f.extend(FileLike) f.original_filename = entity['name'] f.content_type = entity['content_type'] f end }
Class Method Summary collapse
Instance Method Summary collapse
- #rename_key(key, options = {}) ⇒ Object
-
#to_query(namespace = nil) ⇒ Object
(also: #to_param)
Converts a hash into a string suitable for use as a URL query string.
- #to_xml(options = {}) ⇒ Object
Class Method Details
.included(klass) ⇒ Object
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# File 'lib/active_support/core_ext/hash/conversions.rb', line 80 def self.included(klass) klass.extend(ClassMethods) end |
Instance Method Details
#rename_key(key, options = {}) ⇒ Object
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# File 'lib/active_support/core_ext/hash/conversions.rb', line 154 def rename_key(key, = {}) camelize = .has_key?(:camelize) ? [:camelize] : ActiveSupport.camelize_xml dasherize = .has_key?(:dasherize) ? [:dasherize] : ActiveSupport.dasherize_xml key = key.camelize if camelize key = key.dasherize if dasherize key end |
#to_query(namespace = nil) ⇒ Object Also known as: to_param
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).
Examples
{ :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"
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# File 'lib/active_support/core_ext/hash/conversions.rb', line 91 def to_query(namespace = nil) collect do |key, value| value.to_query(namespace ? "#{namespace}[#{key}]" : key) end.sort * '&' end |
#to_xml(options = {}) ⇒ Object
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# File 'lib/active_support/core_ext/hash/conversions.rb', line 99 def to_xml( = {}) require 'builder' unless defined?(Builder) = .dup [:indent] ||= 2 .reverse_merge!({ :builder => Builder::XmlMarkup.new(:indent => [:indent]), :root => "hash" }) [:builder].instruct! unless .delete(:skip_instruct) root = rename_key([:root].to_s, ) [:builder].__send__(:method_missing, root) do each do |key, value| case value when ::Hash value.to_xml(.merge({ :root => key, :skip_instruct => true })) when ::Array value.to_xml(.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(.merge({ :root => key, :skip_instruct => true })) else value.call(.merge({ :root => key, :skip_instruct => true }), key.to_s.singularize) end else if value.respond_to?(:to_xml) value.to_xml(.merge({ :root => key, :skip_instruct => true })) else type_name = XML_TYPE_NAMES[value.class.name] key = rename_key(key.to_s, ) attributes = [:skip_types] || value.nil? || type_name.nil? ? { } : { :type => type_name } if value.nil? attributes[:nil] = true end [:builder].tag!(key, XML_FORMATTING[type_name] ? XML_FORMATTING[type_name].call(value) : value, attributes ) end end end yield [:builder] if block_given? end end |