Only show Network Admin if the user is a ZC of a network

app/Models/User.php

@@ -79,4 +79,14 @@ class User extends Authenticatable implements MustVerifyEmail
 	{
 		return FALSE;
 	}
+
+	/**
+	 * Is this user a ZC of a domain?
+	 *
+	 * @return bool
+	 */
+	public function isZC(): bool
+	{
+		return $this->systems->pluck('addresses')->flatten()->where('role',Address::NODE_ZC)->count() > 0;
+	}
 }

resources/views/layouts/partials/sidebar.blade.php

@@ -11,6 +11,7 @@
 	</dl>
 
 	@auth
+		@if ($user->isZC())
 			<dl>
 				<dt>Network Admin</dt>
 				<dd><a href="{{ url('ftn/domain') }}">Domains</a></dd>
@@ -24,6 +25,7 @@
 				<dt>System Admin</dt>
 				<dd><a href="{{ url('ftn/our_systems') }}">This Host Systems</a></dd>
 			</dl>
+		@endif
 
 		@can('admin')
 			<dl>