How to make ajax work inside hook_field_widget_form()
/**
* Implements hook_field_widget_form().
*/
function test_field_widget_form($form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
$form_field['autocomplete'] = array(
'#type' => 'textfield',
'#title' => 'Tags',
'#autocomplete_path' => 'taxonomy/autocomplete' . '/' . $field['field_name'],
'#size' => $instance['widget']['settings']['size'],
'#maxlength' => 1024,
'#element_validate' => array('taxonomy_autocomplete_validate'),
'#prefix' => '<div id ="subscribers-name">',
'#suffix' => '</div>',
);
if (isset($form_state['values']['autocomplete'])) {
$form_field['autocomplete']['#value'] = 'new value';
}
$form_field['search_tags'] = array(
'#type' => 'button',
'#value' => 'Recommend Tags',
'#ajax' => array(
'callback' => 'call_ajax_replace_value',
'wrapper' => 'subscribers-name',
'method' => 'replace',
),
);
$element += $form_field;
return $element;
}
function call_ajax_replace_value($form, &$form_state) {
return $form['field_tags'][LANGUAGE_NONE][0]['autocomplete'];
}
How do i update autocomplete textfield value on AJAX callback?