Networking\InitCmsBundle\Admin\Model\MediaAdmin::getPersistentParameters PHP Method

    public function getPersistentParameters()
    {
        if (!$this->hasRequest()) {
            return array();
        }
        $filterParameters = $this->getFilterParameters();
        $context = $this->getRequest()->get('context');
        $provider = $this->getRequest()->get('provider');
        if (is_array($context) && array_key_exists('value', $context)) {
            $context = $context['value'];
        }
        if (!$provider && array_key_exists('providerName', $filterParameters)) {
            if (!$provider && !$context) {
                $provider = $filterParameters['providerName']['value'];
            }
        }
        if (!$context && array_key_exists('context', $filterParameters)) {
            $context = $filterParameters['context']['value'];
        } elseif (!$context) {
            $context = $this->pool->getDefaultContext();
        }
        $providers = $this->pool->getProvidersByContext($context);
        // if the context has only one provider, set it into the request
        // so the intermediate provider selection is skipped
        if (count($providers) == 1 && null === $provider) {
            $provider = array_shift($providers)->getName();
            $this->getRequest()->query->set('provider', $provider);
        }
        return array('provider' => $provider, 'context' => $context);
    }