Airship\Cabin\Hull\Landing\BlogPosts::listByCategory PHP Method

    public function listByCategory(string $slug = '', string $page = '')
    {
        list($offset, $limit) = $this->getOffsetAndLimit($page);
        if (!empty($slug)) {
            $category = $this->blog->getCategory($slug);
            if (empty($category)) {
                throw new EmulatePageNotFound();
            }
            $cats = $this->blog->expandCategory($category['categoryid']);
            if (!\in_array($category['categoryid'], $cats)) {
                \array_unshift($cats, $category['categoryid']);
            }
        } else {
            $category = ['name' => 'Uncategorized'];
            $cats = [];
        }
        $count = $this->blog->countByCategories($cats);
        $blogRoll = $this->blog->listByCategories($cats, $limit, $offset);
        $mathJAX = false;
        foreach ($blogRoll as $i => $blog) {
            $blogRoll[$i] = $this->blog->getSnippet($blog);
            if (Binary::safeStrlen($blogRoll[$i]['snippet']) !== Binary::safeStrlen($blog['body'])) {
                $blogRoll[$i]['snippet'] = \rtrim($blogRoll[$i]['snippet'], "\n");
            }
            $mathJAX = $mathJAX || \strpos($blog['body'], '$$') !== false;
        }
        $args = ['category' => $category, 'blogroll' => $blogRoll, 'mathjax' => $mathJAX, 'pagination' => ['base' => \Airship\LensFunctions\cabin_url() . 'blog/category/' . $slug, 'count' => $count, 'page' => (int) \ceil($offset / ($limit ?? 1)) + 1, 'per_page' => $limit]];
        $this->config('blog.cachelists') ? $this->stasis('blog/category', $args) : $this->lens('blog/category', $args);
    }