FormStateValuesTrait::isValueEmpty

public FormStateValuesTrait::isValueEmpty($key)

Implements \Drupal\Core\Form\FormStateInterface::isValueEmpty()

File

core/lib/Drupal/Core/Form/FormStateValuesTrait.php, line 70

Class

FormStateValuesTrait: Provides methods to manage form state values.

Namespace

Drupal\Core\Form

Code

public function isValueEmpty($key) {
  $exists = NULL;
  $value = NestedArray::getValue($this->getValues(), (array) $key, $exists);
  return !$exists || empty($value);
}

Links:

https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Form%21FormStateValuesTrait.php/function/FormStateValuesTrait%3A%3AisValueEmpty/8.2.x

doc_Drupal

2016-10-29 09:16:47

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