Ruby API: no wrapper for metadata_keys_begin

[Do]

Hello, there is no wrapper for metadata_keys_begin for RUBY API. Please add!

My version:

def metadata(term)
  Xapian._safelyIterate(self.metadata_keys_begin(term),
                        self.metadata_keys_end(term)) { |item|
          item.term
  }
end

[Olly Betts]

There are several other begin/end iterator methods which appear not to be handled:

$ grep 'rb_define_method.*[a-zA-Z0-9]_begin"' xapian_wrap.cc|grep -v _dangerous_
  rb_define_method(SwigClassQuery.klass, "get_unique_terms_begin", VALUEFUNC(_wrap_Query_get_unique_terms_begin), -1);
  rb_define_method(SwigClassQueryParser.klass, "stoplist_begin", VALUEFUNC(_wrap_QueryParser_stoplist_begin), -1);
  rb_define_method(SwigClassQueryParser.klass, "unstem_begin", VALUEFUNC(_wrap_QueryParser_unstem_begin), -1);
  rb_define_method(SwigClassDatabase.klass, "spellings_begin", VALUEFUNC(_wrap_Database_spellings_begin), -1);
  rb_define_method(SwigClassDatabase.klass, "synonyms_begin", VALUEFUNC(_wrap_Database_synonyms_begin), -1);
  rb_define_method(SwigClassDatabase.klass, "synonym_keys_begin", VALUEFUNC(_wrap_Database_synonym_keys_begin), -1);
  rb_define_method(SwigClassDatabase.klass, "metadata_keys_begin", VALUEFUNC(_wrap_Database_metadata_keys_begin), -1);

[Olly Betts]

Added metadata_keys wrapper on master in 5b3439cc78f400b641ad815d4e6288e822f86c34.

[Olly Betts]

I've wrapped all the other missing iterators on master in e2d3f3fa67deab6baad96f74bf3cce86edae2153.

[Olly Betts]

Backported for 1.4.12 in 5f6ebf3e1a3f0dc364327d696a210d8e191c2100 and 81fa37bc833eabde8ec8d8981a155d3ab22e4828.

[Do]

Thanks!