function content_multigroup_node_form_transpose_elements in Content Construction Kit (CCK) 6.3

Transpose element positions in $form_state for the fields in a multigroup.

1 call to content_multigroup_node_form_transpose_elements()

_content_multigroup_node_form_after_build in modules/content_multigroup/content_multigroup.node_form.inc

Fix form and posting data when the form is submitted.

File

modules/content_multigroup/content_multigroup.node_form.inc, line 482

Implementation of node edit functions for content multigroup.

Code

function content_multigroup_node_form_transpose_elements(&$form, &$form_state, $type_name, $group_name) {
  $groups = fieldgroup_groups($type_name);
  $group = $groups[$group_name];
  $group_fields = $form['#multigroups'][$group_name];

  // Save the remove state of multigroup items in the $form_state array.
  if (!isset($form_state['multigroup_removed'])) {
    $form_state['multigroup_removed'] = array();
  }
  if (!isset($form_state['multigroup_removed'][$group_name])) {
    $form_state['multigroup_removed'][$group_name] = array();
  }

  // Move group data from group->delta->field to field->delta.
  $group_data = array();
  foreach ($form_state['values'][$group_name] as $delta => $items) {

    // Skip 'add more' button.
    if (!is_array($items) || !isset($items['_weight'])) {
      continue;
    }
    foreach ($group_fields as $field_name => $field) {
      if (!isset($group_data[$field_name])) {
        $group_data[$field_name] = array();
      }

      // Get field weight and remove state from the group and keep track of the
      // current delta for each field item.
      $item_defaults = array(
        '_weight' => $items['_weight'],
        '_remove' => $items['_remove'],
        '_old_delta' => $delta,
      );
      $group_data[$field_name][$delta] = is_array($items[$field_name]) ? array_merge($items[$field_name], $item_defaults) : $item_defaults;

      // Store the remove state and the element weight in the form element as
      // well, so we can restore them later.
      // See content_multigroup_fix_multivalue_fields().
      // See content_multigroup_fix_element_values().
      $form[$group_name][$delta][$field_name]['#_weight'] = $items['_weight'];
      $form[$group_name][$delta][$field_name]['#removed'] = $items['_remove'];

      // Insert an element valitation callback of our own at the end of the
      // list to ensure the drag'n'drop weight of the element is not lost by
      // a form_set_value() operation made by the validation callback of the
      // widget element.
      if (!isset($form[$group_name][$delta][$field_name]['#element_validate'])) {
        $form[$group_name][$delta][$field_name]['#element_validate'] = array();
      }
      $form[$group_name][$delta][$field_name]['#element_validate'][] = 'content_multigroup_fix_element_values';
    }
    $form_state['multigroup_removed'][$group_name][$delta] = $items['_remove'];
  }
  $form_group_sorted = FALSE;
  foreach ($group_data as $field_name => $items) {

    // Sort field items according to drag-n-drop reordering. Deltas are also
    // rebuilt to start counting from 0 to n. Note that since all fields in the
    // group share the same weight, their deltas remain in sync.
    usort($items, '_content_sort_items_helper');

    // Now we need to apply the same ordering to the form elements. Also,
    // note that deltas have changed during the sort operation, so we need
    // to reflect this delta conversion in the form.
    if (!$form_group_sorted) {
      $form_group_items = array();
      $form_deltas = array();
      foreach ($items as $new_delta => $item) {
        $form_deltas[$item['_old_delta']] = $new_delta;
        $form_group_items[$new_delta] = $form[$group_name][$item['_old_delta']];
        unset($form[$group_name][$item['_old_delta']]);
      }
      foreach ($form_group_items as $new_delta => $form_group_item) {
        $form[$group_name][$new_delta] = $form_group_item;
      }
      content_multigroup_node_form_fix_deltas($form[$group_name], $form_deltas);
      $form_group_sorted = TRUE;
    }

    // Get rid of the old delta value.
    foreach (array_keys($items) as $delta) {
      unset($items[$delta]['_old_delta']);
    }

    // Fix field and delta positions in the $_POST array.
    if (!empty($_POST)) {
      $_POST[$field_name] = array();
      foreach ($items as $new_delta => $item) {
        $_POST[$field_name][$new_delta] = $item;
      }
      if (isset($_POST[$group_name])) {
        unset($_POST[$group_name]);
      }
    }

    // Move field items back to their original positions.
    $form_state['values'][$field_name] = $items;
  }

  // Finally, get rid of the group data in form values.
  unset($form_state['values'][$group_name]);
}