function properties_field_presave in Dynamic properties 7

Implements hook_field_presave().

Converts single item array in key 0 into multiple items, which are stored separately.

File

./properties.module, line 254

This module provides a dynamic property field that can contain an unlimited number of attribute value pairs.

Code

function properties_field_presave($entity_type, $entity, $field, $instance, $langcode, &$items) {
  if (!empty($items[0]) && !isset($items[0]['attribute'])) {
    $categories = $items[0];
    $items = array();

    // First step, move items into correct category. Necessary to be able to sort
    // them withing their category.
    foreach ($categories as $cname => $category) {
      if (!is_array($category) || !is_array($category['properties'])) {
        continue;
      }
      foreach ($category['properties'] as $pname => $property) {
        if ($property['category'] != $cname) {

          // Add to new category.
          $categories[$property['category']]['properties'][$property['attribute']] = $property;

          // Remove from current category.
          unset($categories[$cname]['properties'][$property['attribute']]);
        }
      }
    }

    // Next step, order categories and attributes.
    uasort($categories, '_field_sort_items_helper');
    foreach ($categories as $category) {
      if (empty($category['properties']) || !is_array($category['properties'])) {
        continue;
      }
      $properties = $category['properties'];
      uasort($properties, '_field_sort_items_helper');
      foreach ($properties as $property) {

        // If the attribute name was deleted, attribute is empty. Ignore these.
        if (empty($property['attribute'])) {
          continue;
        }

        // Add them in the sorted order to the items array.
        $items[] = array(
          'attribute' => $property['attribute'],
          'value' => $property['value'],
          'category' => $property['category'],
        );
      }
    }
  }
}