+=item check_options
+
+For a passed I<$options> hashref, validates any options that
+have 'validate' subroutines defined in the info hash,
+then validates the entire hashref if the price plan has
+its own 'validate' subroutine defined in the info hash
+(I<$options> values might be altered.)
+
+Returns error message, or empty string if valid.
+
+Invoked by L</insert> and L</replace> via the equivalent
+methods in L<FS::option_Common>.
+
+=cut
+
+sub check_options {
+ my ($self,$options) = @_;
+ foreach my $option (keys %$options) {
+ if (exists $plans{ $self->plan }->{fields}->{$option}) {
+ if (exists($plans{$self->plan}->{fields}->{$option}->{'validate'})) {
+ # pass option name for use in error message
+ # pass a reference to the $options value, so it can be cleaned up
+ my $error = &{$plans{$self->plan}->{fields}->{$option}->{'validate'}}($option,\($options->{$option}));
+ return $error if $error;
+ }
+ } # else "option does not exist" error?
+ }
+ if (exists($plans{$self->plan}->{'validate'})) {
+ my $error = &{$plans{$self->plan}->{'validate'}}($options);
+ return $error if $error;
+ }
+ return '';
+}
+
+=item check_pkg_svc
+
+Checks pkg_svc records as a whole (for part_svc_link dependencies).
+
+If there is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub check_pkg_svc {
+ my( $self, %opt ) = @_;
+
+ my $agentnum = $self->agentnum;
+
+ my %pkg_svc = map { $_->svcpart => $_ } $self->pkg_svc;
+
+ foreach my $svcpart ( keys %pkg_svc ) {
+
+ foreach my $part_svc_link ( $self->part_svc_link(
+ 'src_svcpart' => $svcpart,
+ 'link_type' => 'part_pkg_restrict',
+ )
+ ) {
+
+ return $part_svc_link->dst_svc. ' must be included with '.
+ $part_svc_link->src_svc
+ unless $pkg_svc{ $part_svc_link->dst_svcpart };
+ }
+
+ }
+
+ return '' if $opt{part_pkg_restrict_soft_override};
+
+ foreach my $svcpart ( keys %pkg_svc ) {
+
+ foreach my $part_svc_link ( $self->part_svc_link(
+ 'src_svcpart' => $svcpart,
+ 'link_type' => 'part_pkg_restrict_soft',
+ )
+ ) {
+ return $part_svc_link->dst_svc. ' is suggested with '.
+ $part_svc_link->src_svc
+ unless $pkg_svc{ $part_svc_link->dst_svcpart };
+ }
+
+ }
+
+ '';
+}
+
+=item part_svc_link OPTION => VALUE ...
+
+Returns the service dependencies (see L<FS::part_svc_link>) for the given
+search options, taking into account this package definition's agent.
+
+Available options are any field in part_svc_link. Typically used options are
+src_svcpart and link_type.
+
+=cut
+
+sub part_svc_link {
+ FS::part_svc_link->by_agentnum( shift->agentnum, @_ );
+}
+