php - 使用 Slim 3 使用 Eloquent-5.3 进行分页

Question

这是我的分页代码:

Controller :

public function index($request, $response) {

    $current_page = $request->getParam('page');

    Paginator::currentPageResolver(function() use ($current_page) {
        return $current_page;
    });

    $routes = $this->route->paginate(2);

    return $this->view->render($response, 'dashboard/dashboard.twig', [
        'routes' => $routes
    ]);
}

查看:

{% for route in routes %}
    {{ route.route_name }}<br>
{% endfor %}

当我运行浏览器时没有问题。当我在 url 中添加 page 参数时，它也有效。

但是当我尝试在分页对象中添加 links 方法时。

{% for route in routes %}
    {{ route.route_name }}<br>
{% endfor %}

{{ routes.links() }} {# <--- This one #}

提示错误

Message: Call to a member function make() on null

File: C:\xampp\htdocs...\vendor\illuminate\pagination\LengthAwarePaginator.php

更新:

当我尝试回显 Controller 内的 links() 方法时。我发现了这个错误。

$routes = $this->route->paginate(5);
echo $routes->links();
die();

Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in C:\xampp\htdocs...\vendor\illuminate\pagination\AbstractPaginator.php on line 377

然后我查看了源码，是这个

/**
 * Get an instance of the view factory from the resolver.
 *
 * @return \Illuminate\Contracts\View\Factory
 */
public static function viewFactory()
{
    return call_user_func(static::$viewFactoryResolver);
}

有什么解决办法吗？

这个方法在5.2有效，引用这个链接。

Pagination with Twig and Eloquent-5.2

但不幸的是，它不再起作用了。

Answer 1

在 PHP 7 中，您可以创建匿名类以在 viewVactory 中注册它:

$view = $this->container->get('view');

$view->getEnvironment()->addTest(new Twig_SimpleTest('string', function($value) {
    return is_string($value);
}));

\Illuminate\Pagination\Paginator::viewFactoryResolver(function() use ($view) {
    return new class($view) {
        private $view;
        private $template;
        private $data;

        public function __construct(\Slim\Views\Twig $view)
        {
            $this->view = $view;
        }

        public function make(string $template, $data = null)
        {
            $this->template = $template;
            $this->data = $data;
            return $this;
        }

        public function render()
        {
            return $this->view->fetch($this->template, $this->data);
        }
    };
});

\Illuminate\Pagination\Paginator::currentPageResolver(function() use ($request) {
    return $request->getParam('page');
});

return $view->render($response, 'list.twig', [
    'items' => Material::paginate(10),
]);

在 list.twig 中:

{{ items.render('pagination.twig') | raw }}

在 pagination.twig 中:

{% if paginator.hasPages() %}
    <ul class="pagination">
        {% for element in elements %}
            {% if element is string %}
                <li class="disabled"><span>{{ element }}</span></li>
            {% endif %}

            {% if element is iterable %}
                {% for page, url in element %}
                    {% if page == paginator.currentPage() %}
                        <li class="active"><span>{{ page }}</span></li>
                    {% else %}
                        <li><a href="{{ url }}">{{ page }}</a></li>
                    {% endif %}
                {% endfor %}
            {% endif %}
        {% endfor %}
    </ul>
{% endif %}