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86 lines
2.2 KiB
Markdown
86 lines
2.2 KiB
Markdown
---
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title: Import CSV Data through a Controller
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summary: Data importing through the frontend
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icon: upload
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---
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# Import CSV Data through a Controller
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You can have more customised logic and interface feedback through a custom controller. Let's create a simple upload
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form (which is used for `MyDataObject` instances). You can access it through
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`http://yoursite.com/MyController/?flush=all`.
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```php
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use SilverStripe\Forms\Form;
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use SilverStripe\Forms\FieldList;
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use SilverStripe\Forms\FileField;
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use SilverStripe\Forms\FormAction;
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use SilverStripe\Forms\RequiredFields;
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use SilverStripe\Dev\CsvBulkLoader;
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use SilverStripe\Control\Controller;
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class MyController extends Controller
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{
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private static $allowed_actions = [
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'Form'
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];
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protected $template = "BlankPage";
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public function Link($action = null)
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{
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return Controller::join_links('MyController', $action);
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}
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public function Form()
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{
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$form = new Form(
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$this,
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'Form',
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new FieldList(
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new FileField('CsvFile', false)
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),
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new FieldList(
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new FormAction('doUpload', 'Upload')
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),
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new RequiredFields()
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);
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return $form;
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}
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public function doUpload($data, $form)
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{
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$loader = new CsvBulkLoader('MyDataObject');
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$results = $loader->load($_FILES['CsvFile']['tmp_name']);
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$messages = [];
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if($results->CreatedCount()) {
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$messages[] = sprintf('Imported %d items', $results->CreatedCount());
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}
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if($results->UpdatedCount()) {
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$messages[] = sprintf('Updated %d items', $results->UpdatedCount());
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}
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if($results->DeletedCount()) {
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$messages[] = sprintf('Deleted %d items', $results->DeletedCount());
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}
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if(!$messages) {
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$messages[] = 'No changes';
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}
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$form->sessionMessage(implode(', ', $messages), 'good');
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return $this->redirectBack();
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}
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}
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```
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[alert]
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This interface is not secured, consider using [Permission::check()](api:SilverStripe\Security\Permission::check()) to limit the controller to users with certain
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access rights.
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[/alert]
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