ElggInstaller::database PHP Method

    protected function database($submissionVars)
    {
        $formVars = array('dbuser' => array('type' => 'text', 'value' => '', 'required' => TRUE), 'dbpassword' => array('type' => 'password', 'value' => '', 'required' => FALSE), 'dbname' => array('type' => 'text', 'value' => '', 'required' => TRUE), 'dbhost' => array('type' => 'text', 'value' => 'localhost', 'required' => TRUE), 'dbprefix' => array('type' => 'text', 'value' => 'elgg_', 'required' => TRUE), 'timezone' => array('type' => 'dropdown', 'value' => 'UTC', 'options' => \DateTimeZone::listIdentifiers(), 'required' => TRUE));
        if ($this->checkSettingsFile()) {
            // user manually created settings file so we fake out action test
            $this->isAction = TRUE;
        }
        if ($this->isAction) {
            do {
                // only create settings file if it doesn't exist
                if (!$this->checkSettingsFile()) {
                    if (!$this->validateDatabaseVars($submissionVars, $formVars)) {
                        // error so we break out of action and serve same page
                        break;
                    }
                    if (!$this->createSettingsFile($submissionVars)) {
                        break;
                    }
                }
                // check db version and connect
                if (!$this->connectToDatabase()) {
                    break;
                }
                if (!$this->installDatabase()) {
                    break;
                }
                system_message(_elgg_services()->translator->translate('install:success:database'));
                $this->continueToNextStep('database');
            } while (FALSE);
            // PHP doesn't support breaking out of if statements
        }
        $formVars = $this->makeFormSticky($formVars, $submissionVars);
        $params = array('variables' => $formVars);
        if ($this->checkSettingsFile()) {
            // settings file exists and we're here so failed to create database
            $params['failure'] = TRUE;
        }
        $this->render('database', $params);
    }