function physical_field_validate in Physical Fields 7

Implements hook_field_validate().

File

./physical.module, line 51

Defines fields (e.g. weight and dimensions) to support describing the physical attributes of entities.

Code

function physical_field_validate($entity_type, $entity, $field, $instance, $langcode, $items, &$errors) {
  if ($field['type'] == 'physical_volume') {

    // Ensure only numeric values are entered in volume fields.
    foreach ($items as $delta => &$item) {
      if (!empty($item['volume']) && !is_numeric($item['volume'])) {
        $errors[$field['field_name']][$langcode][$delta][] = array(
          'error' => 'physical_volume',
          'message' => t('%name: volume must be a number.', array(
            '%name' => $instance['label'],
          )),
        );
      }
    }
  }
  elseif ($field['type'] == 'physical_weight') {

    // Ensure only numeric values are entered in weight fields.
    foreach ($items as $delta => &$item) {
      if (!empty($item['weight']) && !is_numeric($item['weight'])) {
        $errors[$field['field_name']][$langcode][$delta][] = array(
          'error' => 'physical_weight',
          'message' => t('%name: you must enter a numeric weight value.', array(
            '%name' => $instance['label'],
          )),
        );
      }
    }
  }
  elseif ($field['type'] == 'physical_dimensions') {

    // Ensure only numeric values are entered in dimension fields.
    foreach ($items as $delta => &$item) {

      // Keep track of which dimensions have data.
      $has_data = array();
      foreach (physical_dimensions() as $key => $dimension) {

        // The current dimension has data if it is set and not NULL.
        if (isset($item[$key]) && $item[$key] != NULL) {
          $has_data[] = $key;
        }

        // Throw an error if the value is not numeric.
        if (!empty($item[$key]) && !is_numeric($item[$key])) {
          $errors[$field['field_name']][$langcode][$delta][] = array(
            'error' => 'physical_dimensions',
            'message' => t('%name: you must enter a numeric !dimension value.', array(
              '%name' => $instance['label'],
              '!dimension' => drupal_strtolower($dimension['name']),
            )),
            'dimension' => $key,
          );
        }
      }

      // If one dimension had data, they all must. Set an error for fields that
      // need data.
      if (count($has_data) > 0) {
        foreach (physical_dimensions() as $key => $dimension) {
          if (!isset($item[$key]) || $item[$key] == NULL) {
            $errors[$field['field_name']][$langcode][$delta][] = array(
              'error' => 'physical_dimensions',
              'message' => t('%name: you must supply a !dimension value.', array(
                '%name' => $instance['label'],
                '!dimension' => drupal_strtolower($dimension['name']),
              )),
              'dimension' => $key,
            );
          }
        }
      }
    }
  }
}