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package UR::BoolExpr::Template::PropertyComparison::Isa;
use strict;
use warnings;
use UR;
our $VERSION = "0.47"; # UR $VERSION;
UR::Object::Type->define(
class_name => __PACKAGE__,
is => ['UR::BoolExpr::Template::PropertyComparison'],
);
sub _compare {
my ($class,$comparison_value,@property_values) = @_;
if (ref $comparison_value) {
# Reference... maybe an Object?
local $@;
if (eval { $comparison_value->isa('UR::Object::Type')} ) {
# It's a class object. Compare to the Class's class_name
$comparison_value = $comparison_value->class_name;
} else {
# It's an object... test on that object's type
$comparison_value = ref($comparison_value);
}
}
foreach my $property_value ( @property_values ) {
return 1 if (eval { $property_value->isa($comparison_value) });
}
return '';
}
1;
=pod
=head1 NAME
UR::BoolExpr::Template::PropertyComparison::Isa - Test whether a value is-a subclass of another class
=head1 DESCRIPTION
If the property returns multiple values, this comparison returns true if any
of the values are a subclass of the comparison value
=cut
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