tripal/tripal_featuremap/theme/tripal_featuremap/tripal_featuremap.references.tpl.php

<?php
$featuremap = $variables['node']->featuremap;
$references = array();

// expand the featuremap object to include the records from the featuremap_dbxref table
$options = array('return_array' => 1);
$featuremap = tripal_core_expand_chado_vars($featuremap, 'table', 'featuremap_dbxref', $options);
$featuremap_dbxrefs = $featuremap->featuremap_dbxref;
if (count($featuremap_dbxrefs) > 0 ) {
  foreach ($featuremap_dbxrefs as $featuremap_dbxref) {    
    $references[] = $featuremap_dbxref->dbxref_id;
  }
}


if(count($references) > 0){ ?>
  <div id="tripal_featuremap-references-box" class="tripal_featuremap-info-box tripal-info-box">
    <div class="tripal_featuremap-info-box-title tripal-info-box-title">Cross References</div>
    <div class="tripal_featuremap-info-box-desc tripal-info-box-desc">External references for this map</div><?php
     
    // the $headers array is an array of fields to use as the colum headers.
    // additional documentation can be found here
    // https://api.drupal.org/api/drupal/includes%21theme.inc/function/theme_table/7
    $headers = array('Dababase', 'Accession');
    
    // the $rows array contains an array of rows where each row is an array
    // of values for each column of the table in that row.  Additional documentation
    // can be found here:
    // https://api.drupal.org/api/drupal/includes%21theme.inc/function/theme_table/7
    $rows = array();
 
    foreach ($references as $dbxref){
      $dbname = $dbxref->db_id->name; 
      if ($dbxref->db_id->url) { 
        $dbname = l($dbname, $dbxref->db_id->url, array('attributes' => array('target' => '_blank')));
      } 
      
      $accession = $dbxref->accession; 
      if ($dbxref->db_id->urlprefix) { 
        $accession = l($accession, $dbxref->db_id->urlprefix . $dbxref->accession, array('attributes' => array('target' => '_blank')));
      } 
      $rows[] = array(
        $dbname,
        $accession
      );
    } 
    
    // 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_featuremap-table-references',
      ),
      '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); ?>
  </div><?php 
}?>