Add Device addresses with DNS entries report

Netdisco/lib/App/Netdisco/Web/Plugin/Report/DeviceAddrNoDNS.pm

@@ -0,0 +1,35 @@
+package App::Netdisco::Web::Plugin::Report::DeviceAddrNoDNS;
+
+use Dancer ':syntax';
+use Dancer::Plugin::DBIC;
+use Dancer::Plugin::Auth::Extensible;
+
+use App::Netdisco::Web::Plugin;
+
+register_report(
+    {   category     => 'Device',
+        tag          => 'deviceaddrnodns',
+        label        => 'Addresses without DNS Entries',
+        provides_csv => 1,
+    }
+);
+
+get '/ajax/content/report/deviceaddrnodns' => require_login sub {
+    my $results = schema('netdisco')->resultset('Device')
+        ->address_nodns_as_hashref;
+
+    return unless scalar $results;
+
+    if ( request->is_ajax ) {
+        template 'ajax/report/deviceaddrnodns.tt', { results => $results, },
+            { layout => undef };
+    }
+    else {
+        header( 'Content-Type' => 'text/comma-separated-values' );
+        template 'ajax/report/deviceaddrnodns_csv.tt',
+            { results => $results, },
+            { layout  => undef };
+    }
+};
+
+1;