-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Zbigniew Lukasiak wrote: > I would like to include your critisizm of the support for many to > many in RecursiveUpdate in it's documentation. Tell me if I get > it right. What I remember is two points: > > 1. That I rely on the fact that > > if($object->can($name) and > !$object->result_source->has_relationship($name) and > $object->can( 'set_' . $name ) ) > > then $name must be a many to many pseudo relation.
So my version of the heuristic goes like this: # start with a has_many relation. # check for related source having two belongs_to rels *only*, # and one of them refers to ourselves, # and at most one other col (id pk) # then the *other* rel on the related source is the "target" ...if that doesn't match, then the link table probably isn't sane, and the m2m code should be avoided. I have some code to do this, and am pondering its fragility before shipping in the next release of LFB's Metadata.pm. Ideally, DBIC would instead populate the relationship_info details after someone has set up __PACKAGE__->many_to_many(...). That would avoid this guesswork. regards, oliver. - -- Oliver Gorwits, Network and Telecommunications Group, Oxford University Computing Services -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFI37cr2NPq7pwWBt4RAi7QAKCMuB48A6MfPEA5bZhflJ7avQLYiwCg9GbX L+cFSGE/tLZ/cI6YgK860UM= =JN85 -----END PGP SIGNATURE----- _______________________________________________ List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class IRC: irc.perl.org#dbix-class SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/ Searchable Archive: http://www.grokbase.com/group/[EMAIL PROTECTED]
