Contao\BackendUser::setUserFromDb PHP Method

    protected function setUserFromDb()
    {
        $this->intId = $this->id;
        // Unserialize values
        foreach ($this->arrData as $k => $v) {
            if (!is_numeric($v)) {
                $this->{$k} = \StringUtil::deserialize($v);
            }
        }
        $GLOBALS['TL_USERNAME'] = $this->username;
        \System::getContainer()->get('request_stack')->getCurrentRequest()->setLocale($this->language);
        \System::getContainer()->get('translator')->setLocale($this->language);
        // Deprecated since Contao 4.0, to be removed in Contao 5.0
        $GLOBALS['TL_LANGUAGE'] = str_replace('_', '-', $this->language);
        \Config::set('showHelp', $this->showHelp);
        \Config::set('useRTE', $this->useRTE);
        \Config::set('useCE', $this->useCE);
        \Config::set('thumbnails', $this->thumbnails);
        \Config::set('backendTheme', $this->backendTheme);
        // Inherit permissions
        $always = array('alexf');
        $depends = array('modules', 'themes', 'pagemounts', 'alpty', 'filemounts', 'fop', 'forms', 'formp', 'imageSizes');
        // HOOK: Take custom permissions
        if (!empty($GLOBALS['TL_PERMISSIONS']) && is_array($GLOBALS['TL_PERMISSIONS'])) {
            $depends = array_merge($depends, $GLOBALS['TL_PERMISSIONS']);
        }
        // Overwrite user permissions if only group permissions shall be inherited
        if ($this->inherit == 'group') {
            foreach ($depends as $field) {
                $this->{$field} = array();
            }
        }
        // Merge permissions
        $inherit = in_array($this->inherit, array('group', 'extend')) ? array_merge($always, $depends) : $always;
        $time = \Date::floorToMinute();
        foreach ((array) $this->groups as $id) {
            $objGroup = $this->Database->prepare("SELECT * FROM tl_user_group WHERE id=? AND disable!='1' AND (start='' OR start<='{$time}') AND (stop='' OR stop>'" . ($time + 60) . "')")->limit(1)->execute($id);
            if ($objGroup->numRows > 0) {
                foreach ($inherit as $field) {
                    $value = \StringUtil::deserialize($objGroup->{$field}, true);
                    // The new page/file picker can return integers instead of arrays, so use empty() instead of is_array() and StringUtil::deserialize(true) here
                    if (!empty($value)) {
                        $this->{$field} = array_merge(is_array($this->{$field}) ? $this->{$field} : ($this->{$field} != '' ? array($this->{$field}) : array()), $value);
                        $this->{$field} = array_unique($this->{$field});
                    }
                }
            }
        }
        // Make sure pagemounts and filemounts are set!
        if (!is_array($this->pagemounts)) {
            $this->pagemounts = array();
        } else {
            $this->pagemounts = array_filter($this->pagemounts);
        }
        if (!is_array($this->filemounts)) {
            $this->filemounts = array();
        } else {
            $this->filemounts = array_filter($this->filemounts);
        }
        // Store the numeric file mounts
        $this->arrFilemountIds = $this->filemounts;
        // Convert the file mounts into paths
        if (!$this->isAdmin && !empty($this->filemounts)) {
            $objFiles = \FilesModel::findMultipleByUuids($this->filemounts);
            if ($objFiles !== null) {
                $this->filemounts = $objFiles->fetchEach('path');
            }
        }
    }