/**
* Build a Fields object that can be used when rendering the grouped counts. Supplies a field
* to render the actual HTML value from the original Fields object used when fetching data for
* the listing and a field to render the count for that value. We don't do any escaping here
* because we assume that the original Fields object handled that in its rendering code. The
* fields object returned from this method supports both TableCell and CsvCell rendering.
*
* @return Fields
*/
public function buildRenderFields()
{
$fields = new Fields();
$fields->add('content')->setLabel($this->groupField->getLabel())->setVisible(true)->assignHelperCallback('TableCell.Content', function (TableCell\Content $helper, array $rowData) {
// Not escaping here because we assume it was escaped by the original renderer in fetchData()
return $rowData['content'];
})->assignHelperCallback('CsvCell.Content', function (CsvCell\Content $helper, array $rowData) {
return $rowData['content'];
})->add('count')->setLabel('Count')->setVisible(true)->assignHelperCallback('TableCell.Content', function (TableCell\Content $helper, array $rowData) {
return $helper->getView()->escapeHtml($rowData['count']);
})->assignHelperCallback('CsvCell.Content', function (CsvCell\Content $helper, array $rowData) {
return $rowData['count'];
});
return $fields;
}
/**
* If no custom callback is defined for a field, it will fall back to this
* method to find a suitable callback. In the case of the Header helper,
* we fall back to all fields just returning their labels.
*
* @param FieldInterface $field
* @return callable
*/
public function detectCallableForField(FieldInterface $field)
{
return function () use($field) {
return $field->getLabel();
};
}
/**
* If no custom callback is defined for a field, it will fall back to this
* method to find a suitable callback. In the case of the Header helper,
* we fall back to all field's just returning their label.
*
* @param FieldInterface $field
* @return callable
*/
public function detectCallableForField(FieldInterface $field)
{
return function () use($field) {
return $this->view->escapeHtml($field->getLabel());
};
}
