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package FS::svc_Parent_Mixin;
use strict;
use NEXT;
use FS::Record qw(qsearch qsearchs);
use FS::cust_svc;
=head1 NAME
FS::svc_Parent_Mixin - Mixin class for svc_ classes with a parent_svcnum field
=head1 SYNOPSIS
package FS::svc_table;
use vars qw(@ISA);
@ISA = qw( FS::svc_Parent_Mixin FS::svc_Common );
=head1 DESCRIPTION
This is a mixin class for svc_ classes that contain a parent_svcnum field.
=cut
=head1 METHODS
=over 4
=item parent_cust_svc
Returns the parent FS::cust_svc object.
=cut
sub parent_cust_svc {
my $self = shift;
qsearchs('cust_svc', { 'svcnum' => $self->parent_svcnum } );
}
=item parent_svc_x
Returns the corresponding parent FS::svc_ object.
=cut
sub parent_svc_x {
my $self = shift;
$self->parent_cust_svc->svc_x;
}
=item children_cust_svc
Returns a list of any child FS::cust_svc objects.
Note: This is not recursive; it only returns direct children.
=cut
sub children_cust_svc {
my $self = shift;
qsearch('cust_svc', { 'parent_svcnum' => $self->svcnum } );
}
=item children_svc_x
Returns the corresponding list of child FS::svc_ objects.
=cut
sub children_svc_x {
my $self = shift;
map { $_->svc_x } $self->children_cust_svc;
}
=item check
This class provides a check subroutine which takes care of checking the
parent_svcnum field. The svc_ class which uses it will call SUPER::check at
the end of its own checks, and this class will call NEXT::check to pass
the check "up the chain" (see L<NEXT>).
=cut
sub check {
my $self = shift;
$self->ut_foreign_keyn('parent_svcnum', 'cust_svc', 'svcnum')
|| $self->NEXT::check;
}
=back
=head1 BUGS
Do we need a recursive child finder for multi-layered children?
=head1 SEE ALSO
L<FS::svc_Common>, L<FS::Record>
=cut
1;
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