function file_field_widget_submit

Form submission handler for upload/remove button of file_field_widget_form().

This runs in addition to and after file_managed_file_submit().

See also

file_managed_file_submit()

file_field_widget_form()

file_field_widget_process()

File

modules/file/file.field.inc, line 761

Code

function file_field_widget_submit($form, &$form_state) {
    // During the form rebuild, file_field_widget_form() will create field item
    // widget elements using re-indexed deltas, so clear out $form_state['input']
    // to avoid a mismatch between old and new deltas. The rebuilt elements will
    // have #default_value set appropriately for the current state of the field,
    // so nothing is lost in doing this.
    $parents = array_slice($form_state['triggering_element']['#parents'], 0, -2);
    drupal_array_set_nested_value($form_state['input'], $parents, NULL);
    $button = $form_state['triggering_element'];
    // Go one level up in the form, to the widgets container.
    $element = drupal_array_get_nested_value($form, array_slice($button['#array_parents'], 0, -1));
    $field_name = $element['#field_name'];
    $langcode = $element['#language'];
    $parents = $element['#field_parents'];
    $submitted_values = drupal_array_get_nested_value($form_state['values'], array_slice($button['#parents'], 0, -2));
    foreach ($submitted_values as $delta => $submitted_value) {
        if (!$submitted_value['fid']) {
            unset($submitted_values[$delta]);
        }
    }
    // Re-index deltas after removing empty items.
    $submitted_values = array_values($submitted_values);
    // Update form_state values.
    drupal_array_set_nested_value($form_state['values'], array_slice($button['#parents'], 0, -2), $submitted_values);
    // Update items.
    $field_state = field_form_get_state($parents, $field_name, $langcode, $form_state);
    $field_state['items'] = $submitted_values;
    field_form_set_state($parents, $field_name, $langcode, $form_state, $field_state);
}