Gdn_SQLDriver::insert PHP Method

    public function insert($Table = '', $Set = null, $Select = '')
    {
        if (count($Set) == 0 && count($this->_Sets) == 0) {
            return false;
        }
        if (!is_null($Set) && $Select == '' && !array_key_exists(0, $Set)) {
            $this->set($Set);
            $Set = $this->_Sets;
        }
        if ($Table == '') {
            if (!isset($this->_Froms[0])) {
                return false;
            }
            $Table = $this->_Froms[0];
        }
        $Sql = $this->getInsert($this->escapeIdentifier($this->Database->DatabasePrefix . $Table), $Set, $Select);
        $Result = $this->query($Sql, 'insert');
        return $Result;
    }

 /**
  * Used by $this->stash() to create & manage sessions for users & guests.
  *
  * This is a stop-gap solution until full session management for users &
  * guests can be implemented.
  *
  * @param Gdn_SQLDriver $sql          Local clone of the sql driver.
  * @param string        $valueToStash The value of the stash to set.
  *
  * @return bool|Gdn_DataSet Current session.
  */
 private function getStashSession($sql, $valueToStash)
 {
     $cookieName = c('Garden.Cookie.Name', 'Vanilla');
     $name = $cookieName . '-sid';
     // Grab the entire session record.
     $sessionID = val($name, $_COOKIE, '');
     // If there is no session, and no value for saving, return.
     if ($sessionID == '' && $valueToStash == '') {
         return false;
     }
     $session = $sql->select()->from('Session')->where('SessionID', $sessionID)->get()->firstRow();
     if (!$session) {
         $sessionID = betterRandomString(32);
         $transientKey = substr(md5(mt_rand()), 0, 11) . '!';
         // Save the session information to the database.
         $sql->insert('Session', ['SessionID' => $sessionID, 'UserID' => Gdn::session()->UserID, 'TransientKey' => $transientKey, 'DateInserted' => Gdn_Format::toDateTime(), 'DateUpdated' => Gdn_Format::toDateTime()]);
         trace("Inserting session stash {$sessionID}");
         $session = $sql->select()->from('Session')->where('SessionID', $sessionID)->get()->firstRow();
         // Save a session cookie.
         $path = c('Garden.Cookie.Path', '/');
         $domain = c('Garden.Cookie.Domain', '');
         $expire = 0;
         // If the domain being set is completely incompatible with the
         // current domain then make the domain work.
         $currentHost = Gdn::request()->host();
         if (!stringEndsWith($currentHost, trim($domain, '.'))) {
             $domain = '';
         }
         safeCookie($name, $sessionID, $expire, $path, $domain);
         $_COOKIE[$name] = $sessionID;
     }
     $session->Attributes = dbdecode($session->Attributes);
     if (!$session->Attributes) {
         $session->Attributes = [];
     }
     return $session;
 }