my ($class, $rs, $column) = @_;
$class = ref $class if ref $class;
- $rs->throw_exception("column must be supplied") unless $column;
+ $rs->throw_exception('column must be supplied') unless $column;
my $orig_attrs = $rs->_resolved_attrs;
my $new_parent_rs = $rs->search_rs;
+ my $new_attrs = $new_parent_rs->{attrs} ||= {};
+
+ # since what we do is actually chain to the original resultset, we need to throw
+ # away all selectors (otherwise they'll chain)
+ delete $new_attrs->{$_} for (qw/columns +columns select +select as +as cols include_columns/);
# prefetch causes additional columns to be fetched, but we can not just make a new
# rs via the _resolved_attrs trick - we need to retain the separation between
# +select/+as and select/as. At the same time we want to preserve any joins that the
# prefetch would otherwise generate.
-
- my $new_attrs = $new_parent_rs->{attrs} ||= {};
$new_attrs->{join} = $rs->_merge_attr( delete $new_attrs->{join}, delete $new_attrs->{prefetch} );
# If $column can be found in the 'as' list of the parent resultset, use the
# corresponding element of its 'select' list (to keep any custom column
# definition set up with 'select' or '+select' attrs), otherwise use $column
# (to create a new column definition on-the-fly).
-
my $as_list = $orig_attrs->{as} || [];
my $select_list = $orig_attrs->{select} || [];
my $as_index = List::Util::first { ($as_list->[$_] || "") eq $column } 0..$#$as_list;