diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/array/conversions.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/array/conversions.rb | 51 |
1 files changed, 43 insertions, 8 deletions
diff --git a/activesupport/lib/active_support/core_ext/array/conversions.rb b/activesupport/lib/active_support/core_ext/array/conversions.rb index 34b1551abc..a9882828ca 100644 --- a/activesupport/lib/active_support/core_ext/array/conversions.rb +++ b/activesupport/lib/active_support/core_ext/array/conversions.rb @@ -67,17 +67,35 @@ module ActiveSupport #:nodoc: end end - # Returns a string that represents this array in XML by sending - # <tt>to_xml</tt> to each element. + # Returns a string that represents this array in XML by sending +to_xml+ + # to each element. Active Record collections delegate their representation + # in XML to this method. # - # All elements are expected to respond to <tt>to_xml</tt>, if any of - # them does not an exception is raised. + # All elements are expected to respond to +to_xml+, if any of them does + # not 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 <tt>Hash</tt>. - # Otherwise the root element is "records". + # if all elements belong to the same type and that's not Hash: # - # Root children have as node name the one of the root singularized. + # 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 # @@ -92,9 +110,26 @@ module ActiveSupport #:nodoc: # </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 root children have as node name the one of the root + # singularized. You can change it with the <tt>:children</tt> option. + # # The +options+ hash is passed downwards: # - # [Message.find(:first)].to_xml(:skip_types => true) + # Message.all.to_xml(:skip_types => true) # # <?xml version="1.0" encoding="UTF-8"?> # <messages> |