[jifty-devel] column in Model references ModelCollection
Jesse Vincent
jesse at bestpractical.com
Tue Mar 18 16:16:24 EDT 2008
On Tue, Mar 18, 2008 at 07:25:19PM +0100, Peter Mottram wrote:
> Hi All
>
> I guess I'm being too stupid here but what I'm trying to achieve in my
> model is:
>
>
> package MyApp::Model::Foo;
> use Jifty::DBI::Schema;
> use MyApp::Record schema {
>
> column one => type is 'text';
>
> column two => references MyApp::Model::BarCollection by 'required_by', default is undef;
> };
>
>
> Weirdly jifty schema --setup doesn't bother creating column two in foos
> and throws no errors or warnings to give me a clue.
For a one-to-many relationship like that, what you want is actually a
_virtual_ column. (Columns can only contain one value).
So referencing a collection as a column "just works"
my $foo = MyApp::Model::Foo->new();
$foo->load_by_cols(id => 12);
my $collection = $foo->two;
while (my $two = $collection->next) {
# do something with $two
}
>
> What I really need is to have one record in Foo to be able to reference a
> collection of Foo records but whatever method I try gets nowhere fast.
>
> Can anyone give me a clue as to what to try next? I have played with
> referencing collections in a much simpler form and just can't get the damn
> things to cooperate in any way. I'm even getting close to implementing
> this using just Mason and DBI (faithful old friends). :-(
>
> TIA
> PeteM
> _______________________________________________
> jifty-devel mailing list
> jifty-devel at lists.jifty.org
> http://lists.jifty.org/cgi-bin/mailman/listinfo/jifty-devel
>
--
More information about the jifty-devel
mailing list