/**
* PN 19-Jun-11: Construct an element error string.
*
* @return string
*/
public function selfDiagnose()
{
$retStr = parent::selfDiagnose();
if ($this->pluginName == 'databasejoin') {
$params = $this->getParams();
// Process the possible errors returning an error string:
if (!$params->get('join_db_name')) {
$retStr .= "\nMissing Table";
}
if (!$params->get('join_key_column')) {
$retStr .= "\nMissing Key";
}
if (!$params->get($this->labelParam) && !$params->get($this->concatLabelParam)) {
$retStr = "\nMissing Label";
}
}
return $retStr;
}
