[Dbix-class] accessing columns in multi-step prefetches
Christopher Heschong
chris at wiw.org
Sat Jan 27 02:53:24 GMT 2007
So I have this code:
my $rs = $self->search_related('watching', {},
{
select => [
{ distinct => 'item.id' }
],
prefetch => { person => { relations => 'item' } },
join => {
'person' => {
'relations' => 'item'
}
},
order_by => 'item.releasedate DESC',
page => 1,
rows => $count
}
);
$thing = $rs->first;
Which produces this SQL on trace:
SELECT DISTINCT( item.id ), person.id, person.mtime, person.title,
person.photo, person.refresh, relations.person, relations.item,
relations.role, item.id, item.mtime, item.title, item.releasedate,
item.type, item.manufacturer, item.asin, item.itms, item.photo,
item.universal FROM watching me JOIN persons person ON ( person.id =
me.person ) LEFT JOIN relations relations ON ( relations.person =
person.id ) JOIN items item ON ( item.id = relations.item ) WHERE
( me.user = ? ) ORDER BY item.releasedate DESC, relations.person
LIMIT 1: '1'
What I can't figure out is how to display the 'item.title' field from
the $thing object. All the person.* things are available, but not
item.*
$thing->person->title; # works
$thing->item->title; # Can't locate object method "item"
Do I need to do something different with my prefetch definition to
get DBIx::Class to notice that I fetched the items table?
Thanks!
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 2409 bytes
Desc: not available
Url : http://lists.scsys.co.uk/pipermail/dbix-class/attachments/20070126/e2b5a426/smime.bin
More information about the Dbix-class
mailing list