/**
* Loads the existing fields from the current item.
*
* @return bool - Success
*/
protected function loadExisting()
{
// Check if an existing item has been specified
if (!isset($this->item) and !isset($this->item_id)) {
return false;
}
// Ensure the item is instatiated
$this->assertItem();
// Tell the item to populate the DM
$this->item->loadDM($this);
if (sizeof($this->existing_fields)) {
return true;
}
throw new vB_Exception_DM('Existing fields loaded from current item but no fields were set');
}
