function biblio_advanced_import_hash in Biblio Advanced Import 7

Same name and namespace in other branches

1. 6 biblio_advanced_import.module \biblio_advanced_import_hash()

Helper function to create a hash from a biblio node depending on a configurable duplicate detection strategy.

Parameters

$node: a biblio node

Return value

a md5 hash

See also

biblio_advanced_import_settings_form()

2 calls to biblio_advanced_import_hash()

biblio_advanced_import_node_presave in ./biblio_advanced_import.module

Implements hook_node_presave().

biblio_advanced_import_update_hash in ./biblio_advanced_import.module

Helper function to update the hash of a biblio node.

File

./biblio_advanced_import.module, line 234

Biblio add-on.

Code

function biblio_advanced_import_hash($node) {
  $hash_string = '';
  $duplicate_criteria = variable_get('biblio_advanced_import_duplicate_criteria', array(
    'title' => 'title',
    'biblio_year' => 'biblio_year',
  ));
  foreach ($duplicate_criteria as $field) {
    if ($field) {
      $field_value = '';
      if (isset($node->{$field})) {
        $field_value = $node->{$field};
      }
      if ('biblio_year' == $field && (empty($field_value) || $field_value == t('Submitted'))) {

        // If the year is empty, it will be set to 9999 by biblio on save.
        // 9999 => "Submitted"
        // Therefore we have to do the same here to not break duplicate detection.
        // Furthermore, on load this magic value will is replaced with a translated version
        // of the string "Submitted"; we hit this case when we rehash after a configuration change;
        // we standardize all these cases on 9999 to arrive at consistent hash values
        $field_value = 9999;
      }
      if ($field_value) {
        if (is_array($field_value) || is_object($field_value)) {
          $hash_string .= serialize($field_value);
        }
        else {
          $hash_string .= preg_replace("/\\s+/", '', mb_strtolower(mb_substr($field_value, 0, 256)));
        }
      }
    }
  }
  return md5(strtolower($hash_string));
}