function library_validate_items in Library 6.2

Same name and namespace in other branches

1. 5.2 library.module \library_validate_items()
2. 6 library.module \library_validate_items()

Validate Library Item Data for a given node

1 call to library_validate_items()

library_nodeapi in ./library.module

Implementation of hook_nodeapi()

File

./library.module, line 897

Code

function library_validate_items($node) {
  if (variable_get('library_item_barcodes', LIBRARY_NO_BARCODES) == LIBRARY_BARCODES) {
    $items = $node->items;
    if ($items) {
      global $base_path;

      //Check that each barcode is unique
      foreach ($items as $key => $item) {
        $result = db_result(db_query("SELECT COUNT(*) FROM {library} WHERE barcode = '%s' AND barcode <> ''", $item['barcode']));
        if (empty($item['id']) && $result || !empty($item['id']) && $result > 1) {
          form_set_error('items][' . $key . '][barcode', t('The barcode %barcode already exists. Please enter a different barcode.', array(
            '%barcode' => $item['barcode'],
          )));
        }
      }
    }
    else {
      form_set_error('items', t('You must enter information for at least one item.'));
    }
  }
}