1 field.api.php | hook_field_widget_form_alter(&$element, &$form_state, $context) |
Alter forms for field widgets provided by other modules.
Parameters
$element: The field widget form element as constructed by hook_field_widget_form().
$form_state: An associative array containing the current state of the form.
$context: An associative array containing the following key-value pairs, matching the arguments received by hook_field_widget_form():
- form: The form structure to which widgets are being attached. This may be a full form structure, or a sub-element of a larger form.
- field: The field structure.
- instance: The field instance structure.
- langcode: The language associated with $items.
- items: Array of default values for this field.
- delta: The order of this item in the array of subelements (0, 1, 2, etc).
See also
hook_field_widget_WIDGET_TYPE_form_alter()
Related topics
File
- core/
modules/ field/ field.api.php, line 933 - Hooks provided by the Field module.
Code
function hook_field_widget_form_alter(&$element, &$form_state, $context) {
// Add a css class to widget form elements for all fields of type mytype.
if ($context['field']['type'] == 'mytype') {
// Be sure not to overwrite existing attributes.
$element['#attributes']['class'][] = 'myclass';
}
}