function render_value($source, $column_name)
{
if (isset($this->_source_fields[$column_name]) && isset($this->_source_fields[$column_name]['values']) && ($lookup = $this->_source_fields[$column_name]['values']) && is_object($lookup)) {
$data = AMP_evalLookup($lookup);
$value = $source->getData($column_name);
if (isset($data[$value])) {
return trim(str_replace(' ', ' ', $data[$value]));
}
}
return parent::render_value($source, $column_name);
}
