MT#8287 only create aliases if available on subscriber creation

some input validation, fixes issues on subadmin subscriber creation

lib/NGCP/Panel/Controller/Customer.pm

@@ -623,11 +623,13 @@ sub subscriber_create :Chained('base') :PathPart('subscriber/create') :Args(0) {
             my $schema = $c->model('DB');
             $schema->txn_do(sub {
                 my $preferences = {};
-                my $pbxgroups;
+                my $pbxgroups = [];
                 if($pbx && !$pbxadmin) {
                     my $pilot = $c->stash->{pilot};
                     $form->params->{domain}{id} = $pilot->domain_id;
-                    $pbxgroups = decode_json($form->value->{group_select});
+                    if ($form->value->{group_select}) {
+                        $pbxgroups = decode_json($form->value->{group_select});
+                    }
                     my $base_number = $pilot->primary_number;
                     if($base_number) {
                         $preferences->{cloud_pbx_base_cli} = $base_number->cc . $base_number->ac . $base_number->sn;
@@ -680,7 +682,7 @@ sub subscriber_create :Chained('base') :PathPart('subscriber/create') :Args(0) {
                     preferences => $preferences,
                 );
 
-                if($pbx && !$pbxadmin) {
+                if($pbx && !$pbxadmin && $form->value->{alias_select}) {
                     NGCP::Panel::Utils::Subscriber::update_subadmin_sub_aliases(
                         schema => $schema,
                         subscriber => $billing_subscriber,

lib/NGCP/Panel/Form/Customer/PbxExtensionSubscriberSubadmin.pm

@@ -25,10 +25,12 @@ sub field_list {
     my $c = $self->ctx;
     return unless $c;
 
-    my $group = $self->field('group');
-    $group->field('id')->ajax_src(
-        $c->uri_for_action('/customer/pbx_group_ajax', [$c->stash->{customer_id}])->as_string
-    );
+    my $group = $self->field('group_select');
+    if ($group) {
+        $group->ajax_src(
+            $c->uri_for_action('/customer/pbx_group_ajax', [$c->stash->{customer_id}])->as_string
+        );
+    }
 
     my $profile_set = $c->stash->{pilot}->provisioning_voip_subscriber->voip_subscriber_profile_set;
     if($profile_set) {