Piwik\Updates\Updates_1_2_rc1::doUpdate PHP Method

    public function doUpdate(Updater $updater)
    {
        // first we disable the plugins and keep an array of warnings messages
        $pluginsToDisableMessage = array('GeoIP' => "GeoIP plugin was disabled, because it is not compatible with the new Piwik 1.2. \nYou can download the latest version of the plugin, compatible with Piwik 1.2.\n<a target='_blank' href='?module=Proxy&action=redirect&url=https://github.com/piwik/piwik/issues/45'>Click here.</a>", 'EntryPage' => "EntryPage plugin is not compatible with this version of Piwik, it was disabled.");
        $disabledPlugins = array();
        foreach ($pluginsToDisableMessage as $pluginToDisable => $warningMessage) {
            if (\Piwik\Plugin\Manager::getInstance()->isPluginActivated($pluginToDisable)) {
                \Piwik\Plugin\Manager::getInstance()->deactivatePlugin($pluginToDisable);
                $disabledPlugins[] = $warningMessage;
            }
        }
        // Run the SQL
        $updater->executeMigrations(__FILE__, $this->getMigrations($updater));
        // Outputs warning message, pointing users to the plugin download page
        if (!empty($disabledPlugins)) {
            throw new \Exception("The following plugins were disabled during the upgrade:" . "<ul><li>" . implode('</li><li>', $disabledPlugins) . "</li></ul>");
        }
    }