private function getView($viewId = null)
{
$view = Concept::getView($this->concept, $viewId);
if (empty($view) || $this->id == '') {
return null;
} else {
$viewStrs = array();
foreach ($view['segments'] as $viewSegment) {
// text segment
if ($viewSegment['segmentType'] == 'Text') {
$viewStrs[$viewSegment['label']] = $viewSegment['Text'];
// expressie segment
} elseif ($viewSegment['segmentType'] == 'Exp') {
$idEsc = $this->database->escape($this->id);
$query = "SELECT DISTINCT `tgt` FROM ({$viewSegment['expSQL']}) AS `results` WHERE `src` = '{$idEsc}' AND `tgt` IS NOT NULL";
$tgtAtoms = array_column($this->database->Exe($query), 'tgt');
$txt = count($tgtAtoms) ? $tgtAtoms[0] : null;
$viewStrs[$viewSegment['label']] = $txt;
// html segment
} elseif ($viewSegment['segmentType'] == 'Html') {
$errorMessage = "Unsupported segmentType 'Html' in view '" . $view['label'] . "'";
throw new Exception($errorMessage, 501);
// 501: Not implemented
//$viewStrs[$viewSegment['label']] = $viewSegment['Html'];
// unknown segment
} else {
$errorMessage = "Unknown segmentType '" . $viewSegment['segmentType'] . "' in view '" . $view['label'] . "'";
throw new Exception($errorMessage, 501);
// 501: Not implemented
}
}
return $viewStrs;
}
}
