Alters the widget properties of a field instance before it gets displayed.
Note that instead of hook_field_widget_properties_alter(), which is called for all fields on all entity types, hook_field_widget_properties_ENTITY_TYPE_alter() may be used to alter widget properties for fields on a specific entity type only.
This hook is called once per field per added or edit entity. If the result of the hook involves reading from the database, it is highly recommended to statically cache the information.
$widget: The instance's widget properties.
$context: An associative array containing:
hook_field_widget_properties_ENTITY_TYPE_alter()
Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.
function hook_field_widget_properties_alter(&$widget, $context) {
// Change a widget's type according to the time of day.
$field = $context['field'];
if ($context['entity_type'] == 'node' && $field['field_name'] == 'field_foo') {
$time = date('H');
$widget['type'] = $time < 12 ? 'widget_am' : 'widget_pm';
}
}