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<?php
namespace Drupal\user;
use Drupal\Component\Utility\Random;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\Plugin\Field\FieldType\StringItem;
/**
* Defines a custom field item class for the 'name' user entity field.
*/
class UserNameItem extends StringItem {
/**
* {@inheritdoc}
*/
public function isEmpty() {
$value = $this->get('value')->getValue();
// Take into account that the name of the anonymous user is an empty string.
if ($this->getEntity()->isAnonymous()) {
return $value === NULL;
}
return $value === NULL || $value === '';
}
/**
* {@inheritdoc}
*/
public static function generateSampleValue(FieldDefinitionInterface $field_definition) {
$random = new Random();
$max_length = min(UserInterface::USERNAME_MAX_LENGTH, $field_definition->getSetting('max_length'));
// Generate a list of words, which can be used to generate a string.
$words = explode(' ', $random->sentences(8));
// Begin with a username that is either 2 or 3 words.
$count = mt_rand(2, 3);
// Capitalize the words used in usernames 50% of the time.
$words = mt_rand(0, 1) ? array_map('ucfirst', $words) : $words;
// Username is a single long word 50% of the time. In the case of a single
// long word, sometimes the generated username may also contain periods in
// the middle of the username.
$separator = ' ';
if (mt_rand(0, 1)) {
$separator = '';
$count = mt_rand(2, 8);
// The username will start with a capital letter 50% of the time.
$words = mt_rand(0, 1) ? array_map('strtolower', $words) : $words;
}
$string = implode($separator, array_splice($words, 0, $count));
// Normalize the string to not be longer than the maximum length, and to not
// end with a space or a period.
$values['value'] = rtrim(mb_substr($string, 0, $max_length), ' .');
return $values;
}
}
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