Fix the FieldtypeDatetime bug.

Author: dadish

src/Field/Mutation/CreateTemplatedPage.php

@@ -112,18 +112,34 @@ public function resolve($value, array $args, ResolveInfo $info)
     // set the values from client
     unset($values['parent']);
     unset($values['name']);
+
+    // update the values from client
     foreach ($values as $fieldName => $value) {
       $field = $fields->get($fieldName);
+      
+      // ignore if field cannot be found
       if (!$field instanceof Field) continue;
-      if ($field->type->className() === 'FieldtypeMapMarker') {
-        $p->$fieldName->lat = $value['lat'];
-        $p->$fieldName->lng = $value['lng'];
-        $p->$fieldName->address = $value['address'];
-        $p->$fieldName->zoom = $value['zoom'];
-        continue;
+      
+      switch ($field->type->className()) {
+        case 'FieldtypeMapMarker':
+          $p->$fieldName->lat = $value['lat'];
+          $p->$fieldName->lng = $value['lng'];
+          $p->$fieldName->address = $value['address'];
+          $p->$fieldName->zoom = $value['zoom'];
+          break;
+        
+        case 'FieldtypePage':
+          $p->$fieldName = implode('|', $value);
+          break;
+
+        case 'FieldtypeDatetime':
+          $p->$fieldName = $value->format('Y-m-d H:i:s');
+          break;
+
+        default:
+          $p->$fieldName = $value;
+          break;
       }
-      if ($field->type->className() === 'FieldtypePage') $value = implode('|', $value);
-      $p->$fieldName = $value;
     }
 
     // save the page to db

src/Field/Mutation/UpdateTemplatedPage.php

@@ -124,16 +124,30 @@ public function resolve($value, array $args, ResolveInfo $info)
     // update the values from client
     foreach ($values as $fieldName => $value) {
       $field = $fields->get($fieldName);
+      
+      // ignore if field cannot be found
       if (!$field instanceof Field) continue;
-      if ($field->type->className() === 'FieldtypeMapMarker') {
-        $p->$fieldName->lat = $value['lat'];
-        $p->$fieldName->lng = $value['lng'];
-        $p->$fieldName->address = $value['address'];
-        $p->$fieldName->zoom = $value['zoom'];
-        continue;
+      
+      switch ($field->type->className()) {
+        case 'FieldtypeMapMarker':
+          $p->$fieldName->lat = $value['lat'];
+          $p->$fieldName->lng = $value['lng'];
+          $p->$fieldName->address = $value['address'];
+          $p->$fieldName->zoom = $value['zoom'];
+          break;
+        
+        case 'FieldtypePage':
+          $p->$fieldName = implode('|', $value);
+          break;
+
+        case 'FieldtypeDatetime':
+          $p->$fieldName = $value->format('Y-m-d H:i:s');
+          break;
+
+        default:
+          $p->$fieldName = $value;
+          break;
       }
-      if ($field->type->className() === 'FieldtypePage') $value = implode('|', $value);
-      $p->$fieldName = $value;
     }
 
     // save the page to db

src/Field/Page/Fieldtype/FieldtypeDatetime.php

@@ -3,6 +3,7 @@
 namespace ProcessWire\GraphQL\Field\Page\Fieldtype;
 
 use Youshido\GraphQL\Type\Scalar\DateTimeType;
+use Youshido\GraphQL\Execution\ResolveInfo;
 use ProcessWire\GraphQL\Field\Page\Fieldtype\AbstractFieldtype;
 
 class FieldtypeDatetime extends AbstractFieldtype {
@@ -12,4 +13,12 @@ public function getDefaultType()
     return new DatetimeType();
   }
 
+  public function resolve($value, array $args, ResolveInfo $info)
+  {
+    $fieldName = $this->field->name;
+    $result = $value->$fieldName;
+    if (!$result) return null;
+    return date('Y-m-d H:i:s', $result);
+  }
+
 }