Include global fields to PageInterface.

Author: dadish

src/Type/InterfaceType/PageType.php

@@ -3,7 +3,9 @@
 namespace ProcessWire\GraphQL\Type\InterfaceType;
 
 use Youshido\GraphQL\Type\InterfaceType\AbstractInterfaceType;
+use ProcessWire\Field;
 use ProcessWire\GraphQL\Type\Object\TemplatedPageType;
+use ProcessWire\GraphQL\Settings;
 
 class PageType extends AbstractInterfaceType {
 
@@ -45,6 +47,16 @@ public function build($config)
       $className = "ProcessWire\\GraphQL\\Field\\Page\\$pageTypeFieldClassName";
       $config->addField(new $className());
     }
+
+    // add global fields too
+    $legalFields = Settings::getLegalFields();
+    foreach ($legalFields as $field) {
+      if ($field->flags & Field::flagGlobal) {
+        $className = "\\ProcessWire\\GraphQL\\Field\\Page\\Fieldtype\\" . $field->type->className();
+        if (!class_exists($className)) continue;
+        $config->addField(new $className($field));
+      }
+    }
   }
 
   public function resolveType($page)