I tried the following:
openacs4=# select version();
-[ RECORD 1 ]-------------------------------------------------------------
version | PostgreSQL 7.2.1 on sparc-sun-solaris2.8, compiled by GCC 2.95.3
openacs4=# select content_folder__register_content_type(-100,'cr_foo','f');
-[ RECORD 1 ]-------------------+--
content_folder__register_conten | 0
openacs4=# select content_item__new (
'foo_item2',
NULL,
NULL,
NULL,
current_timestamp,
null,
null,
null,
'content_item',
'cr_foo',
NULL,
NULL,
NULL,
NULL,
NULL
);
-[ RECORD 1 ]-
content_item__new | 2585
openacs4=# select acs_object_id_seq.nextval from dual;
N-[ RECORD 1 ]-
nextval | 2586
openacs4=# insert into cr_fooi (item_id,
revision_id,
title,
description,
context_id,
creation_user,
creation_ip)
values (2585,2586,'foo test','this is a test of foo',null,null,null);
INSERT 0 0
openacs4=# select * from cr_foo;
-[ RECORD 1 ]
foo_id | 2586
The key was that I needed to register the content type to the root folder.
