Pimcore\Model\Object\ClassDefinition::getFieldDefinitions PHP Method

    public function getFieldDefinitions()
    {
        return $this->fieldDefinitions;
    }

 public static function getCustomGridFieldDefinitions($classId, $objectId)
 {
     $object = AbstractObject::getById($objectId);
     $class = ClassDefinition::getById($classId);
     $masterFieldDefinition = $class->getFieldDefinitions();
     if (!$object) {
         return null;
     }
     $user = AdminTool::getCurrentUser();
     if ($user->isAdmin()) {
         return null;
     }
     $permissionList = array();
     $parentPermissionSet = $object->getPermissions(null, $user, true);
     if ($parentPermissionSet) {
         $permissionList[] = $parentPermissionSet;
     }
     $childPermissions = $object->getChildPermissions(null, $user);
     $permissionList = array_merge($permissionList, $childPermissions);
     $layoutDefinitions = array();
     foreach ($permissionList as $permissionSet) {
         $allowedLayoutIds = self::getLayoutPermissions($classId, $permissionSet);
         if (is_array($allowedLayoutIds)) {
             foreach ($allowedLayoutIds as $allowedLayoutId) {
                 if ($allowedLayoutId) {
                     if (!$layoutDefinitions[$allowedLayoutId]) {
                         $customLayout = ClassDefinition\CustomLayout::getById($allowedLayoutId);
                         if (!$customLayout) {
                             continue;
                         }
                         $layoutDefinitions[$allowedLayoutId] = $customLayout;
                     }
                 }
             }
         }
     }
     $mergedFieldDefinition = unserialize(serialize($masterFieldDefinition));
     if (count($layoutDefinitions)) {
         foreach ($mergedFieldDefinition as $key => $def) {
             if ($def instanceof ClassDefinition\Data\Localizedfields) {
                 $mergedLocalizedFieldDefinitions = $mergedFieldDefinition[$key]->getFieldDefinitions();
                 foreach ($mergedLocalizedFieldDefinitions as $locKey => $locValue) {
                     $mergedLocalizedFieldDefinitions[$locKey]->setInvisible(false);
                     $mergedLocalizedFieldDefinitions[$locKey]->setNotEditable(false);
                 }
                 $mergedFieldDefinition[$key]->setChilds($mergedLocalizedFieldDefinitions);
             } else {
                 $mergedFieldDefinition[$key]->setInvisible(false);
                 $mergedFieldDefinition[$key]->setNotEditable(false);
             }
         }
     }
     foreach ($layoutDefinitions as $customLayoutDefinition) {
         $layoutName = $customLayoutDefinition->getName();
         $layoutDefinitions = $customLayoutDefinition->getLayoutDefinitions();
         $dummyClass = new ClassDefinition();
         $dummyClass->setLayoutDefinitions($layoutDefinitions);
         $customFieldDefinitions = $dummyClass->getFieldDefinitions();
         foreach ($mergedFieldDefinition as $key => $value) {
             if (!$customFieldDefinitions[$key]) {
                 unset($mergedFieldDefinition[$key]);
             }
         }
         foreach ($customFieldDefinitions as $key => $def) {
             if ($def instanceof ClassDefinition\Data\Localizedfields) {
                 if (!$mergedFieldDefinition[$key]) {
                     continue;
                 }
                 $customLocalizedFieldDefinitions = $def->getFieldDefinitions();
                 $mergedLocalizedFieldDefinitions = $mergedFieldDefinition[$key]->getFieldDefinitions();
                 foreach ($mergedLocalizedFieldDefinitions as $locKey => $locValue) {
                     self::mergeFieldDefinition($mergedLocalizedFieldDefinitions, $customLocalizedFieldDefinitions, $locKey);
                 }
                 $mergedFieldDefinition[$key]->setChilds($mergedLocalizedFieldDefinitions);
             } else {
                 self::mergeFieldDefinition($mergedFieldDefinition, $customFieldDefinitions, $key);
             }
         }
     }
     return $mergedFieldDefinition;
 }