function FormElementBase::valueCallback

Overrides FormElementInterface::valueCallback

1 call to FormElementBase::valueCallback()
FormElement::valueCallback in core/lib/Drupal/Core/Render/Element/FormElement.php
Determines how user input is mapped to an element's #value property.
17 methods override FormElementBase::valueCallback()
Checkbox::valueCallback in core/lib/Drupal/Core/Render/Element/Checkbox.php
Determines how user input is mapped to an element's #value property.
Checkboxes::valueCallback in core/lib/Drupal/Core/Render/Element/Checkboxes.php
Determines how user input is mapped to an element's #value property.
Datelist::valueCallback in core/lib/Drupal/Core/Datetime/Element/Datelist.php
Validates the date type to adjust 12 hour time and prevent invalid dates. If the date is valid, the date is set in the form.
Datetime::valueCallback in core/lib/Drupal/Core/Datetime/Element/Datetime.php
Determines how user input is mapped to an element's #value property.
File::valueCallback in core/lib/Drupal/Core/Render/Element/File.php
Determines how user input is mapped to an element's #value property.

... See full list

File

core/lib/Drupal/Core/Render/Element/FormElementBase.php, line 102

Class

FormElementBase
Provides a base class for form element plugins.

Namespace

Drupal\Core\Render\Element

Code

public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
    return NULL;
}

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.