use strict;
+use English qw(-no_match_vars);
use Rose::DB::Object;
use List::MoreUtils qw(any);
return $check ? $self->$sub(@_) : $self;
}
+sub get_first_conflicting {
+ my ($self, @attributes) = @_;
+
+ my $primary_key = ($self->meta->primary_key)[0];
+ my @where = map { ($_ => $self->$_) } @attributes;
+
+ push @where, ("!$primary_key" => $self->$primary_key) if $self->$primary_key;
+
+ return $self->_get_manager_class->get_first(where => [ and => \@where ]);
+}
+
# These three functions cannot sit in SL::DB::Object::Hooks because
# mixins don't deal well with super classes (SUPER is the current
# package's super class, not $self's).
sub save {
my ($self, @args) = @_;
- my $result;
+ my ($result, $exception);
my $worker = sub {
SL::DB::Object::Hooks::run_hooks($self, 'before_save');
- $result = $self->SUPER::save(@args);
+ $exception = $EVAL_ERROR unless eval {
+ $result = $self->SUPER::save(@args);
+ 1;
+ };
SL::DB::Object::Hooks::run_hooks($self, 'after_save', $result);
+
+ return $result;
};
$self->db->in_transaction ? $worker->() : $self->db->do_transaction($worker);
+
+ die $exception if $exception;
+
return $result;
}
sub delete {
my ($self, @args) = @_;
- my $result;
+ my ($result, $exception);
my $worker = sub {
SL::DB::Object::Hooks::run_hooks($self, 'before_delete');
- $result = $self->SUPER::delete(@args);
+ $exception = $EVAL_ERROR unless eval {
+ $result = $self->SUPER::delete(@args);
+ 1;
+ };
SL::DB::Object::Hooks::run_hooks($self, 'after_delete', $result);
+
+ return $result;
};
$self->db->in_transaction ? $worker->() : $self->db->do_transaction($worker);
+
+ die $exception if $exception;
+
return $result;
}
Returns the sub's result if the check is positive and C<$self>
otherwise.
+=item C<get_first_conflicting @attributes>
+
+Returns the first object for which all properties listed in
+C<@attributes> equal those in C<$self> but which is not C<$self>. Can
+be used to check whether or not an object's columns are unique before
+saving or during validation.
+
=back
=head1 AUTHOR