2007-04-12
- perlvdb: new module to relay database query to arbitrary Perl functions

New module on the truck, courtesy of Bastian Friedrich. The Perl Virtual Database module (perlvdb) can be used to relay the database requests of modules (auth_db, alias_db, ...) to arbitrary Perl functions.

Sample scenario

LDAP directories commonly contain information about users of a network. With the virtual database, LDAP authentication becomes possible; multiple e-mail addresses can be used for aliasing through the alias_db module...

Steps:

• Configure alias_db and auth_db to use "perlvdb:OpenSER::VDB::Adapter::Alias" and "perlvdb:OpenSER::VDB::Adapter::Auth" as their databases

• Implement "virtual tables" (VTabs) that provide "query" functions in your Perl module script, or in arbitrary other (reachable) packages.

• In the configuration script, use alias_db_lookup("vtabname") (vtabname being the name of your function, your package, or your class) to use your virtual database.

For more details, see module's documentation:

http://www.openser.org/docs/modules/devel/perlvdb.html