One thing I discovered after my post which I think is CRITICAL: has_one & might_have both use the PK of the local (what's the proper terminology?) table as the FK into the foreign table. Perhaps saying something like this for the might_have docs:
"Creates an optional one-to-one relationship with a class, where the primary key of the foreign class is equal to the primary key of the local table. Ie. Foo.id == Bar.id. Unlike belongs_to, might_have ONLY suppports using each tables primary key as the key column." I'm sure I said that in a very ineloquent way, but hopefully you get the idea. Drew On 10/19/06, Lee Standen <[EMAIL PROTECTED]> wrote: > Belongs to is a child -> parent relationship > Has one is a sibling <-> sibling relationship? > > I'm just guessing here. > > My response #2 would be that one is an alias for another > > > > On Thu, 19 Oct 2006, Drew Taylor wrote: > > > This morning I was doing some work on relationships and ran into this > > question: > > What is the difference between belongs_to and has_one/might_have? > > > > They seem VERY similar. AFAICT the fundamental difference is that with > > belongs_to cascading delete is turned off, while with has_one > > cascading delete is turned on by default. Is there any other > > differences between these two? > > > > Thanks, > > Drew > > -- > > ---------------------------------------------------------------- > > Drew Taylor * Web development & consulting > > Email: [EMAIL PROTECTED] * Site implementation & hosting > > Web : www.drewtaylor.com * perl/mod_perl/DBI/mysql/postgres > > ---------------------------------------------------------------- > > > > _______________________________________________ > > List: http://lists.rawmode.org/cgi-bin/mailman/listinfo/dbix-class > > Wiki: http://dbix-class.shadowcatsystems.co.uk/ > > IRC: irc.perl.org#dbix-class > > SVN: http://dev.catalyst.perl.org/repos/bast/trunk/DBIx-Class/ > > Searchable Archive: > > http://www.mail-archive.com/[email protected]/ > > > > > > _______________________________________________ > List: http://lists.rawmode.org/cgi-bin/mailman/listinfo/dbix-class > Wiki: http://dbix-class.shadowcatsystems.co.uk/ > IRC: irc.perl.org#dbix-class > SVN: http://dev.catalyst.perl.org/repos/bast/trunk/DBIx-Class/ > Searchable Archive: http://www.mail-archive.com/[email protected]/ > -- ---------------------------------------------------------------- Drew Taylor * Web development & consulting Email: [EMAIL PROTECTED] * Site implementation & hosting Web : www.drewtaylor.com * perl/mod_perl/DBI/mysql/postgres ---------------------------------------------------------------- _______________________________________________ List: http://lists.rawmode.org/cgi-bin/mailman/listinfo/dbix-class Wiki: http://dbix-class.shadowcatsystems.co.uk/ IRC: irc.perl.org#dbix-class SVN: http://dev.catalyst.perl.org/repos/bast/trunk/DBIx-Class/ Searchable Archive: http://www.mail-archive.com/[email protected]/
