function userreference_widget in Content Construction Kit (CCK) 5

Same name and namespace in other branches

1. 6.3 modules/userreference/userreference.module \userreference_widget()
2. 6 modules/userreference/userreference.module \userreference_widget()
3. 6.2 modules/userreference/userreference.module \userreference_widget()

Implementation of hook_widget().

File

./userreference.module, line 171

Defines a field type for referencing a user from a node.

Code

function userreference_widget($op, &$node, $field, &$items) {
  if ($field['widget']['type'] == 'userreference_select') {
    switch ($op) {
      case 'prepare form values':
        $items_transposed = content_transpose_array_rows_cols($items);

        // get rid of null values
        $items['default uids'] = array_filter((array) $items_transposed['uid']);
        break;
      case 'form':
        $form = array();
        $options = _userreference_potential_references($field);
        if (!$field['required']) {
          $options = array(
            'none' => t('<none>'),
          ) + $options;
        }
        if (empty($items['default uids'])) {
          $items['default uids'][] = 'none';
        }
        $form[$field['field_name']] = array(
          '#tree' => TRUE,
        );
        $form[$field['field_name']]['uids'] = array(
          '#type' => 'select',
          '#title' => t($field['widget']['label']),
          '#default_value' => $items['default uids'],
          '#multiple' => $field['multiple'],
          '#size' => $field['multiple'] ? min(count($options), 6) : 0,
          '#options' => $options,
          '#required' => $field['required'],
          '#description' => content_filter_xss(t($field['widget']['description'])),
        );
        return $form;
      case 'process form values':
        if ($field['multiple']) {

          // drop the 'none' option
          unset($items['uids']['none']);
          if (!empty($items['uids'])) {
            $items = array_values(content_transpose_array_rows_cols(array(
              'uid' => $items['uids'],
            )));
          }
          else {
            $items[0]['uid'] = '';
          }
        }
        else {
          $items[0]['uid'] = $items['uids'] != 'none' ? $items['uids'] : '';
        }

        // Remove the widget's data representation so it isn't saved.
        unset($items['uids']);
        foreach ($items as $delta => $item) {
          $items[$delta]['error_field'] = $field['field_name'] . '][uids';
        }
    }
  }
  else {
    switch ($op) {
      case 'prepare form values':
        foreach ($items as $delta => $item) {
          if (!empty($items[$delta]['uid'])) {
            $items[$delta]['default user_name'] = db_result(db_query("SELECT name FROM {users} WHERE uid = '%d'", $items[$delta]['uid']));
          }
        }
        break;
      case 'form':
        $form = array();
        $form[$field['field_name']] = array(
          '#tree' => TRUE,
        );
        if ($field['multiple']) {
          $form[$field['field_name']]['#type'] = 'fieldset';
          $form[$field['field_name']]['#description'] = content_filter_xss(t($field['widget']['description']));
          $delta = 0;
          foreach ($items as $item) {
            if ($item['uid']) {
              $form[$field['field_name']][$delta]['user_name'] = array(
                '#type' => 'textfield',
                '#title' => $delta == 0 ? t($field['widget']['label']) : '',
                '#autocomplete_path' => 'userreference/autocomplete/' . $field['field_name'],
                '#default_value' => $item['default user_name'],
                '#required' => $delta == 0 ? $field['required'] : FALSE,
              );
              $delta++;
            }
          }
          foreach (range($delta, $delta + 2) as $delta) {
            $form[$field['field_name']][$delta]['user_name'] = array(
              '#type' => 'textfield',
              '#title' => $delta == 0 ? t($field['widget']['label']) : '',
              '#autocomplete_path' => 'userreference/autocomplete/' . $field['field_name'],
              '#default_value' => '',
              '#required' => $delta == 0 ? $field['required'] : FALSE,
            );
          }
        }
        else {
          $form[$field['field_name']][0]['user_name'] = array(
            '#type' => 'textfield',
            '#title' => t($field['widget']['label']),
            '#autocomplete_path' => 'userreference/autocomplete/' . $field['field_name'],
            '#default_value' => $items[0]['default user_name'],
            '#required' => $field['required'],
            '#description' => content_filter_xss(t($field['widget']['description'])),
          );
        }
        return $form;
      case 'process form values':
        foreach ($items as $delta => $item) {
          $uid = '';
          if (!empty($items[$delta]['user_name'])) {
            $uid = db_result(db_query("SELECT uid FROM {users} WHERE name = '%s'", $items[$delta]['user_name']));
          }

          // Remove the widget's data representation so it isn't saved.
          unset($items[$delta]['user_name']);
          $items[$delta]['uid'] = $uid;
          $items[$delta]['error_field'] = $field['field_name'] . '][' . $delta . '][user_name';

          // Don't save empty fields except the first value
          if (empty($uid) && $delta > 0) {
            unset($items[$delta]);
          }
        }
    }
  }
}