kartik\social\VKPlugin::init PHP Method

    public function init()
    {
        static $initDone = false;
        $this->validPlugins = [self::COMMENTS, self::POST, self::COMMUNITY, self::LIKE, self::RECO, self::POLL, self::AUTH, self::SHARE, self::SUBSCRIBE];
        parent::init();
        $this->setConfig('vk');
        $initRequired = !in_array($this->type, [self::POST, self::COMMUNITY, self::SHARE, self::SUBSCRIBE]);
        $this->_initVk = $initRequired && !$initDone;
        if ($this->_initVk) {
            $initDone = true;
        }
        if (empty($this->options['id'])) {
            $this->options['id'] = $this->getId();
        }
        if (empty($this->type)) {
            throw new InvalidConfigException("The plugin 'type' must be set.");
        }
        if (empty($this->apiId) && $this->_initVk) {
            throw new InvalidConfigException("The VKontakte 'apiId' has not been set.");
        }
        if (!isset($this->noscript)) {
            $this->noscript = Yii::t('kvsocial', 'Please enable JavaScript on your browser to view the VKontakte {pluginName} plugin correctly on this site.', ['pluginName' => Yii::t('kvsocial', str_replace('vk_', '', $this->type))]);
        }
        $this->_options = $this->options;
        $this->options = ['id' => $this->options['id'], 'class' => $this->type];
        unset($this->_options['id']);
        $this->registerAssets();
        echo $this->renderPlugin();
    }