lib/components/web/browser/HandlerObjects.php
public function getDataSource()
    {
        if (is_null($this->_dataSource)) {
            $typeItem = Yii::$app->collectors['types']->getOne($this->instructions['type']);
            if (!$typeItem || !($type = $typeItem->object)) {
                return $this->_dataSource = false;
            }
            $primaryModel = $type->primaryModel;
            if (isset($this->instructions['parent'])) {
                $registryClass = Yii::$app->classes['Registry'];
                $object = $registryClass::getObject($this->instructions['parent']);
                if (!$object) {
                    return $this->_dataSource = false;
                }
                $this->_dataSource = $object->queryChildObjects($primaryModel, [], []);
            } else {
                $this->_dataSource = $primaryModel::find();
            }
            $dummyModel = new $primaryModel();
            $sortOptions = array_values($dummyModel->sortOptions);
            if ($this->filterQuery) {
                $primaryModel::simpleSearchTermQuery($this->_dataSource, $this->filterQuery);
            } elseif (isset($sortOptions[0])) {
                $this->_dataSource->orderBy($sortOptions[0]);
            }
        }

        return $this->_dataSource;
    }
public function getDataSource()
    {
        if (is_null($this->_dataSource)) {
            $typeItem = Yii::$app->collectors['types']->getOne($this->instructions['type']);
            if (!$typeItem || !($type = $typeItem->object)) {
                return $this->_dataSource = false;
            }
            $primaryModel = $type->primaryModel;
            if (isset($this->instructions['parent'])) {
                $registryClass = Yii::$app->classes['Registry'];
                $object = $registryClass::getObject($this->instructions['parent']);
                if (!$object) {
                    return $this->_dataSource = false;
                }
                $this->_dataSource = $object->queryChildObjects($primaryModel, [], []);
            } else {
                $this->_dataSource = $primaryModel::find();
            }
            $dummyModel = new $primaryModel();
            $sortOptions = array_values($dummyModel->sortOptions);
            if ($this->filterQuery) {
                $primaryModel::simpleSearchTermQuery($this->_dataSource, $this->filterQuery);
            } elseif (isset($sortOptions[0])) {
                $this->_dataSource->orderBy($sortOptions[0]);
            }
        }

        return $this->_dataSource;
    }
Get data source.

@return [[@doctodo return_type:getDataSource]] [[@doctodo return_description:getDataSource]]