yii\data\BaseDataProvider::refresh PHP Method

After calling this method, if BaseDataProvider::getModels, BaseDataProvider::getKeys or BaseDataProvider::getTotalCount is called again, they will re-execute the query and return the latest data available.

public refresh ( )

    public function refresh()
    {
        $this->_totalCount = null;
        $this->_models = null;
        $this->_keys = null;
    }

BaseDataProvider