A single record template that shows a person's age.

pdb-single-show-age.php

<?php
/*
 * default template for displaying a single record
 * 
 * This one calculates a person's age from a field named "birthdate" and shows it in a field named "age"
 */
$record = new PDb_Template( $this );
$date_field = 'birthdate';
$age_field = 'age';
?>

<div class="wrap <?php echo $this->wrap_class ?>">
	
  <?php while ( $this->have_groups() ) : $this->the_group(); ?>
  
  <div class="section <?php $this->group->print_class() ?>" id="<?php echo Participants_Db::$prefix.$this->group->name ?>">
  
    <?php $this->group->print_title( '<h2 class="pdb-group-title">', '</h2>' ) ?>
    
    <?php $this->group->print_description() ?>
    
    
      <?php while ( $this->have_fields() ) : $this->the_field();
					
       // CSS class for empty fields
       $empty_class = $this->get_empty_class( $this->field );
       
       if ( $this->field->name === $age_field ) {
         $this->field->value = date('y') - date( 'y', $record->get_value( $date_field ) );
       }
      ?>
    <dl class="<?php echo Participants_Db::$prefix.$this->field->name.' '.$this->field->form_element.' '.$empty_class?>">
      
      <dt class="<?php echo $this->field->name.' '.$empty_class?>"><?php $this->field->print_label() ?></dt>
      
      <dd class="<?php echo $this->field->name.' '.$empty_class?>"><?php $this->field->print_value() ?></dd>
    
    </dl>
  
    	<?php endwhile; // end of the fields loop ?>
    
  </div>
  
  <?php endwhile; // end of the groups loop ?>
  
</div>