/**
* @error if links json is empty or spaces in DB column
* @error if links json evaluates to NULL by json_decode
* @error if links json is valid but not an array
* @return an array of strings (links)
*
*/
function getLinkDataOnId($postId)
{
$row = mysql\Post::getLinkDataOnId($postId);
$json = $row['json'];
$links = NULL;
if (!Util::tryEmpty($json)) {
$links = json_decode($json);
}
if (is_null($links) || !is_array($links)) {
$message = sprintf("Post %d has Bad json [ %s ] ", $postId, $json);
Logger::getInstance()->error($message);
$links = NULL;
}
$data = array('links' => $links, 'version' => $row['version']);
return $data;
}
