public function view($slug = null)
    {
        //Data can be passed as query string, from a widget
        if ($this->request->getQuery('q')) {
            return $this->redirect([$this->request->getQuery('q')]);
        }

        $slug = Text::slug($slug, ['replacement' => ' ']);

        $tag = $this->PostsTags->Tags->findActiveByTag($slug)
            ->cache((sprintf('tag_%s', md5($slug))), $this->PostsTags->getCacheName())
            ->firstOrFail();

        $page = $this->request->getQuery('page', 1);

        //Sets the cache name
        $cache = sprintf('tag_%s_limit_%s_page_%s', md5($slug), $this->paginate['limit'], $page);

        //Tries to get data from the cache
        list($posts, $paging) = array_values(Cache::readMany(
            [$cache, sprintf('%s_paging', $cache)],
            $this->PostsTags->getCacheName()
        ));

        //If the data are not available from the cache
        if (empty($posts) || empty($paging)) {
            $query = $this->PostsTags->Posts->find('active')
                ->find('forIndex')
                ->matching($this->PostsTags->Tags->getAlias(), function (Query $q) use ($slug) {
                    return $q->where(['tag' => $slug]);
                });
            $posts = $this->paginate($query);

            //Writes on cache
            Cache::writeMany([
                $cache => $posts,
                sprintf('%s_paging', $cache) => $this->request->getParam('paging'),
            ], $this->PostsTags->getCacheName());
        //Else, sets the paging parameter
        } else {
            $this->request = $this->request->withParam('paging', $paging);
        }

        $this->set(compact('posts', 'tag'));
    }