function mvf_field_formatter_settings_summary in Measured Value Field 7

Implements hook_field_formatter_settings_summary().

File

./mvf.module, line 882

Define a field type of measured value.

Code

function mvf_field_formatter_settings_summary($field, $instance, $view_mode) {
  $summary = array();
  $superior_formatter = $instance['display'][$view_mode];
  foreach ($field['settings']['meta_info'] as $subfield => $meta_info) {
    if ($superior_formatter['type'] == 'mvf_formatter_symbol' && $subfield == 'unit') {

      // For symbol formatter for unit sub field we do not have to outsource the
      // task of generation of summary to the sub formatter.
      $subsummary = 'Units as symbol';
    }
    else {

      // We collect what subformatter wants to output into the summary for the
      // the sub field.
      $mocked_field = mvf_field_mockup($field, $subfield);
      $mocked_instance = mvf_instance_mockup($field, $instance, $subfield);
      $formatter = $mocked_instance['display'][$view_mode];
      $subsummary = module_invoke($formatter['module'], 'field_formatter_settings_summary', $mocked_field, $mocked_instance, $view_mode);
    }
    if ($subsummary) {
      $summary[$subfield] = $subsummary;
    }
  }
  $summary = implode('; ', $summary);
  if (empty($summary)) {

    // We have to output at least some string in order to make the "settings"
    // button for format appear.
    $summary = 'no format';
  }
  return $summary;
}