/**
* Generate a CSV import form for a single {@link DataObject} subclass.
*
* @return Form|false
*/
public function ImportForm()
{
$modelSNG = singleton($this->modelClass);
$modelName = $modelSNG->i18n_singular_name();
// check if a import form should be generated
if (!$this->showImportForm || is_array($this->showImportForm) && !in_array($this->modelClass, $this->showImportForm)) {
return false;
}
$importers = $this->getModelImporters();
if (!$importers || !isset($importers[$this->modelClass])) {
return false;
}
if (!$modelSNG->canCreate(Member::currentUser())) {
return false;
}
$fields = new FieldList(new HiddenField('ClassName', _t('ModelAdmin.CLASSTYPE'), $this->modelClass), new FileField('_CsvFile', false));
// get HTML specification for each import (column names etc.)
$importerClass = $importers[$this->modelClass];
/** @var BulkLoader $importer */
$importer = new $importerClass($this->modelClass);
$spec = $importer->getImportSpec();
$specFields = new ArrayList();
foreach ($spec['fields'] as $name => $desc) {
$specFields->push(new ArrayData(array('Name' => $name, 'Description' => $desc)));
}
$specRelations = new ArrayList();
foreach ($spec['relations'] as $name => $desc) {
$specRelations->push(new ArrayData(array('Name' => $name, 'Description' => $desc)));
}
$specHTML = $this->customise(array('ClassName' => $this->sanitiseClassName($this->modelClass), 'ModelName' => Convert::raw2att($modelName), 'Fields' => $specFields, 'Relations' => $specRelations))->renderWith($this->getTemplatesWithSuffix('_ImportSpec'));
$fields->push(new LiteralField("SpecFor{$modelName}", $specHTML));
$fields->push(new CheckboxField('EmptyBeforeImport', _t('ModelAdmin.EMPTYBEFOREIMPORT', 'Replace data'), false));
$actions = new FieldList(new FormAction('import', _t('ModelAdmin.IMPORT', 'Import from CSV')));
$form = new Form($this, "ImportForm", $fields, $actions);
$form->setFormAction(Controller::join_links($this->Link($this->sanitiseClassName($this->modelClass)), 'ImportForm'));
$this->extend('updateImportForm', $form);
return $form;
}
