/usr/lib/ruby/vendor_ruby/active_support/core_ext/array/conversions.rb is in ruby-activesupport-3.2 3.2.6-6+deb7u1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | require 'active_support/xml_mini'
require 'active_support/core_ext/hash/keys'
require 'active_support/core_ext/hash/reverse_merge'
require 'active_support/core_ext/string/inflections'
class Array
# Converts the array to a comma-separated sentence where the last element is joined by the connector word. Options:
# * <tt>:words_connector</tt> - The sign or word used to join the elements in arrays with two or more elements (default: ", ")
# * <tt>:two_words_connector</tt> - The sign or word used to join the elements in arrays with two elements (default: " and ")
# * <tt>:last_word_connector</tt> - The sign or word used to join the last element in arrays with three or more elements (default: ", and ")
def to_sentence(options = {})
if defined?(I18n)
default_words_connector = I18n.translate(:'support.array.words_connector', :locale => options[:locale])
default_two_words_connector = I18n.translate(:'support.array.two_words_connector', :locale => options[:locale])
default_last_word_connector = I18n.translate(:'support.array.last_word_connector', :locale => options[:locale])
else
default_words_connector = ", "
default_two_words_connector = " and "
default_last_word_connector = ", and "
end
options.assert_valid_keys(:words_connector, :two_words_connector, :last_word_connector, :locale)
options.reverse_merge! :words_connector => default_words_connector, :two_words_connector => default_two_words_connector, :last_word_connector => default_last_word_connector
case length
when 0
""
when 1
self[0].to_s.dup
when 2
"#{self[0]}#{options[:two_words_connector]}#{self[1]}"
else
"#{self[0...-1].join(options[:words_connector])}#{options[:last_word_connector]}#{self[-1]}"
end
end
# Converts a collection of elements into a formatted string by calling
# <tt>to_s</tt> on all elements and joining them:
#
# Blog.all.to_formatted_s # => "First PostSecond PostThird Post"
#
# Adding in the <tt>:db</tt> argument as the format yields a comma separated
# id list:
#
# Blog.all.to_formatted_s(:db) # => "1,2,3"
def to_formatted_s(format = :default)
case format
when :db
if respond_to?(:empty?) && self.empty?
"null"
else
collect { |element| element.id }.join(",")
end
else
to_default_s
end
end
alias_method :to_default_s, :to_s
alias_method :to_s, :to_formatted_s
# Returns a string that represents the array in XML by invoking +to_xml+
# on each element. Active Record collections delegate their representation
# in XML to this method.
#
# All elements are expected to respond to +to_xml+, if any of them does
# not then an exception is raised.
#
# The root node reflects the class name of the first element in plural
# if all elements belong to the same type and that's not Hash:
#
# customer.projects.to_xml
#
# <?xml version="1.0" encoding="UTF-8"?>
# <projects type="array">
# <project>
# <amount type="decimal">20000.0</amount>
# <customer-id type="integer">1567</customer-id>
# <deal-date type="date">2008-04-09</deal-date>
# ...
# </project>
# <project>
# <amount type="decimal">57230.0</amount>
# <customer-id type="integer">1567</customer-id>
# <deal-date type="date">2008-04-15</deal-date>
# ...
# </project>
# </projects>
#
# Otherwise the root element is "records":
#
# [{:foo => 1, :bar => 2}, {:baz => 3}].to_xml
#
# <?xml version="1.0" encoding="UTF-8"?>
# <records type="array">
# <record>
# <bar type="integer">2</bar>
# <foo type="integer">1</foo>
# </record>
# <record>
# <baz type="integer">3</baz>
# </record>
# </records>
#
# If the collection is empty the root element is "nil-classes" by default:
#
# [].to_xml
#
# <?xml version="1.0" encoding="UTF-8"?>
# <nil-classes type="array"/>
#
# To ensure a meaningful root element use the <tt>:root</tt> option:
#
# customer_with_no_projects.projects.to_xml(:root => "projects")
#
# <?xml version="1.0" encoding="UTF-8"?>
# <projects type="array"/>
#
# By default name of the node for the children of root is <tt>root.singularize</tt>.
# You can change it with the <tt>:children</tt> option.
#
# The +options+ hash is passed downwards:
#
# Message.all.to_xml(:skip_types => true)
#
# <?xml version="1.0" encoding="UTF-8"?>
# <messages>
# <message>
# <created-at>2008-03-07T09:58:18+01:00</created-at>
# <id>1</id>
# <name>1</name>
# <updated-at>2008-03-07T09:58:18+01:00</updated-at>
# <user-id>1</user-id>
# </message>
# </messages>
#
def to_xml(options = {})
require 'active_support/builder' unless defined?(Builder)
options = options.dup
options[:indent] ||= 2
options[:builder] ||= Builder::XmlMarkup.new(:indent => options[:indent])
options[:root] ||= if first.class.to_s != "Hash" && all? { |e| e.is_a?(first.class) }
underscored = ActiveSupport::Inflector.underscore(first.class.name)
ActiveSupport::Inflector.pluralize(underscored).tr('/', '_')
else
"objects"
end
builder = options[:builder]
builder.instruct! unless options.delete(:skip_instruct)
root = ActiveSupport::XmlMini.rename_key(options[:root].to_s, options)
children = options.delete(:children) || root.singularize
attributes = options[:skip_types] ? {} : {:type => "array"}
return builder.tag!(root, attributes) if empty?
builder.__send__(:method_missing, root, attributes) do
each { |value| ActiveSupport::XmlMini.to_tag(children, value, options) }
yield builder if block_given?
end
end
end
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