[Dbix-class] Problem retrieving data
Anthony Gardner
cyclewood_ltd at yahoo.co.uk
Mon May 21 13:25:18 GMT 2007
This is probably bread 'n butter to you but ........
I have the following table relationships .....
groups ---< categories ---< subcategories ----< products
for a group, I want to retrieve all of its categories, the catgeories' subcats etc.
i have this .........
## switch between list and rs context
my $group_rs =
my @group = $schema->resultset('ProductGroup')->search( { 'me.id' => 18 },
{ select => [ 'me.name', 'categories.name', 'subcategories.name', 'products.name'],
as => [ qw|group_name category_name subcategory_name product_name|],
join => { categories => { subcategories => 'products' }}
});
....... which I think is right but I can;t get at all the rows from the returned resultset. If I return a list, it works. $group_rs->next() in a loop just returns the first row.
## this works in ist context
foreach my $group ( @groups ) {
my $group_name = $group->get_column('group_name');
my $cat_name = $group->get_column('category_name');
my $subcat_name = $group->get_column('subcategory_name');
my $prod_name = $group->get_column('product_name');
print "$group $group_name => $cat_name => $subcat_name => $prod_name\n";
}
=pod
## this doesn't work for all rows context
foreach my $group ( $group_rs->next() ) {
my $group_name = $group->get_column('group_name');
my $cat_name = $group->get_column('category_name');
my $subcat_name = $group->get_column('subcategory_name');
my $prod_name = $group->get_column('product_name');
print "$group $group_name => $cat_name => $subcat_name => $prod_name\n";
}
=cut
I'd like to use the rs copntext and print something like .........
group1
cat1
subcat1
prod1
prod2
prod3
subcat2
prod4
subcat3
prod5
cat2
subcat4
..... etc. etc.
Any tips would be greatly/warmly appreciated.
-Ants
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