MT#56417 make Provisioning Templates "contract_contact" and "contract" sections optional

to better fit the usecase of *updating* subscribers, we
make the contract and contract_contact sections no longer
mandatory.

Change-Id: If3c34f2cd3a5201cf7da2729369fd6b1003f1a80

lib/NGCP/Panel/Utils/ProvisioningTemplates.pm

@@ -137,7 +137,7 @@ sub validate_template {
     my ($data,$prefix) = @_;
     $prefix //= 'template: ';
     die($prefix . "not a hash\n") unless 'HASH' eq ref $data;
-    foreach my $section (qw/contract subscriber/) {
+    foreach my $section (qw/subscriber/) {
         die($prefix . "section '$section' required\n") unless exists $data->{$section};
         die($prefix . "section '$section' is not a hash\n") unless 'HASH' eq ref $data->{$section};
     }
@@ -804,7 +804,7 @@ sub _init_contract_context {
         $c->log->debug("provisioning template - contract contact: " . Dumper($context->{contract_contact}));
     }
 
-    {
+    if (exists $template->{contact}) {
         my %contract = ();
         my @identifiers = _get_identifiers($template->{contract});
         foreach my $col (keys %{$template->{contract}}) {
@@ -1097,6 +1097,7 @@ sub _create_contract_contact {
 
     my ($c, $context, $schema) = @_;
 
+    if (exists $context->{contract_contact}) {
         unless ($context->{contract_contact}->{id}) {
             my $contact = $schema->resultset('contacts')->create(
                 $context->{contract_contact},
@@ -1105,6 +1106,7 @@ sub _create_contract_contact {
     
             $c->log->debug("provisioning template - contract contact id $context->{contract_contact}->{id} created");
         }
+    }
 
 }
 
@@ -1112,6 +1114,7 @@ sub _create_contract {
 
     my ($c, $context, $schema) = @_;
 
+    if (exists $context->{contract}) {
         unless ($context->{contract}->{id}) {
             $context->{contract}->{contact_id} //= $context->{contract_contact}->{id};
             die("contact_id for contract required") unless $context->{contract}->{contact_id};
@@ -1128,6 +1131,7 @@ sub _create_contract {
             );
             $c->log->debug("provisioning template - contract id $context->{contract}->{id} created");
         }
+    }
 
 }