MT#18407 Consider null in emailtemplate.reseller_id

Change-Id: I3e2f4606697c04052ed8a976e5c78dbe953261b3

lib/NGCP/Panel/Controller/API/EmailTemplates.pm

@@ -79,7 +79,7 @@ sub GET :Allow {
         (my $total_count, $items) = $self->paginate_order_collection($c, $items);
         my (@embedded, @links);
         my $form = $self->get_form($c);
-        for my $item ($items->search({}, {prefetch => ['reseller']})->all) {
+        for my $item ($items->all) {
             push @embedded, $self->hal_from_item($c, $item, $form);
             push @links, Data::HAL::Link->new(
                 relation => 'ngcp:'.$self->resource_name,

lib/NGCP/Panel/Form/EmailTemplate/Admin.pm

@@ -6,7 +6,8 @@ extends 'NGCP::Panel::Form::EmailTemplate::Reseller';
 
 has_field 'reseller' => (
     type => '+NGCP::Panel::Field::Reseller',
-    validate_when_empty => 1,
+    validate_when_empty => 0,
+    required => 0,
 );
 
 has_block 'fields' => (

lib/NGCP/Panel/Role/API/EmailTemplates.pm

@@ -21,7 +21,7 @@ sub item_rs {
     my $item_rs = $c->model('DB')->resultset('email_templates');
     if($c->user->roles eq "admin") {
     } elsif($c->user->roles eq "reseller") {
-        $item_rs = $item_rs->search({ reseller_id => $c->user->reseller_id });
+        $item_rs = $item_rs->search({ reseller_id => $c->user->reseller_id },{prefetch=>'reseller'});
     }
     return $item_rs;
 }
@@ -50,7 +50,7 @@ sub hal_from_item {
             Data::HAL::Link->new(relation => 'collection', href => sprintf("/api/%s/", $self->resource_name)),
             Data::HAL::Link->new(relation => 'profile', href => 'http://purl.org/sipwise/ngcp-api/'),
             Data::HAL::Link->new(relation => 'self', href => sprintf("%s%d", $self->dispatch_path, $item->id)),
-            Data::HAL::Link->new(relation => 'ngcp:resellers', href => sprintf("/api/resellers/%d", $item->reseller_id)),
+            $item->reseller_id ? Data::HAL::Link->new(relation => 'ngcp:resellers', href => sprintf("/api/resellers/%d", $item->reseller_id)):(),
         ],
         relation => 'ngcp:'.$self->resource_name,
     );