Import CSV Data through a Controller

You can have more customised logic and interface feedback through a custom controller. Let's create a simple upload form (which is used for MyDataObject instances). You can access it through http://yoursite.com/MyController/?flush=all.

    use SilverStripe\Forms\Form;
    use SilverStripe\Forms\FieldList;
    use SilverStripe\Forms\FileField;
    use SilverStripe\Forms\FormAction;
    use SilverStripe\Forms\RequiredFields;
    use SilverStripe\Dev\CsvBulkLoader;
    use SilverStripe\Control\Controller;

    class MyController extends Controller 
    {

        private static $allowed_actions = [
            'Form'
        ];

        protected $template = "BlankPage";

        public function Link($action = null) 
        {
            return Controller::join_links('MyController', $action);
        }

        public function Form() 
        {
            $form = new Form(
                $this,
                'Form',
                new FieldList(
                    new FileField('CsvFile', false)
                ),
                new FieldList(
                    new FormAction('doUpload', 'Upload')
                ),
                new RequiredFields()
            );
            return $form;
        }

        public function doUpload($data, $form) 
        {
            $loader = new CsvBulkLoader('MyDataObject');
            $results = $loader->load($_FILES['CsvFile']['tmp_name']);
            $messages = [];

            if($results->CreatedCount()) {
                $messages[] = sprintf('Imported %d items', $results->CreatedCount());
            }

            if($results->UpdatedCount()) {
                $messages[] = sprintf('Updated %d items', $results->UpdatedCount());
            }

            if($results->DeletedCount()) {
                $messages[] = sprintf('Deleted %d items', $results->DeletedCount());
            }

            if(!$messages) {
                $messages[] = 'No changes';
            }

            $form->sessionMessage(implode(', ', $messages), 'good');

            return $this->redirectBack();
        }
    }

This interface is not secured, consider using [Permission::check()](api:SilverStripe\Security\Permission::check()) to limit the controller to users with certain access rights.

2.4 KiB Raw Blame History

Import CSV Data through a Controller

2.4 KiB

Raw Blame History