feature;
// expand the feature object to include the libraries from the library
// table in chado.
$options = array('return_array' => 1);
$feature = tripal_core_expand_chado_vars($feature, 'table', 'library_feature', $options);
$library_features = $feature->library_feature;
if (count($library_features) > 0) {?>
  
    Libraries
    The following libraries are associated with this feature.
 library_id->name;
      if ($library_feature->library_id->nid) {
        $libname = l($libname, "node/" . $library_feature->library_id->nid, array('attributes' => array('target' => '_blank')));
      }
      
      $typename = $library_feature->library_id->type_id->name;
      if ($typename == 'cdna_library') {
        $typename = 'cDNA';
      }
      else if ($typename == 'bac_library') {
        $typename = 'BAC';
      }
      
      $rows[] = array(
        $libname,
        $typename
      );      
    }
    
    // the $table array contains the headers and rows array as well as other
    // options for controlling the display of the table.  Additional
    // documentation can be found here:
    // https://api.drupal.org/api/drupal/includes%21theme.inc/function/theme_table/7
    $table = array(
      'header' => $headers,
      'rows' => $rows,
      'attributes' => array(
        'id' => 'tripal_feature-table-libraries',
      ),
      'sticky' => FALSE,
      'caption' => '',
      'colgroups' => array(),
      'empty' => '',
    );
    
    // once we have our table array structure defined, we call Drupal's theme_table()
    // function to generate the table.
    print theme_table($table); ?>