function ManyToOne::summaryArgument
Provide the argument to use to link from the summary to the next level; this will be called once per row of a summary, and used as part of $view->getUrl().
Parameters
$data: The query results for the row.
Overrides ArgumentPluginBase::summaryArgument
File
- 
              core/
modules/ views/ src/ Plugin/ views/ argument/ ManyToOne.php, line 179  
Class
- ManyToOne
 - An argument handler for use in fields that have a many to one relationship with the table(s) to the left. This adds a bunch of options that are reasonably common with this type of relationship. Definition terms:
 
Namespace
Drupal\views\Plugin\views\argumentCode
public function summaryArgument($data) {
  $value = $data->{$this->base_alias};
  if (empty($value)) {
    $value = 0;
  }
  return $value;
}
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