Laravel 4 - 在一个页面上使用多个分页器

Question

I've been googling for this question but can't find any good answers. I found that there is a method called setPageName() for the paginator but it only works when used like Paginator::setPageName('page').

I looked up the paginator in the Laravel API (http://laravel.com/api/class-Illuminate.Pagination.Environment.html) and the method is a public function just like setBaseUrl which I am currently using like $albums->setBaseUrl('/album/');

for instance I want to have a Photo paginator (?photoPage=n) and a Comment paginator (?commentPage=n).

Is there any way that I can use two paginators that use different page names in the URL on one page, or at least call the setPageName() method like setBaseUrl()?

Answer 1

There are actually two classes at play here:

• Illuminate\Pagination\Paginator
• Illuminate\Pagination\Factory

Where the Factory class actually orchestrates the creation of Paginator instances. After a quick glance, I couldn't really tell you why the Factory class is in charge of get/setPageName(), but that's where they live.

It seems that you would need two distinct Factory instances, which, fortunately, is possible via the IoC Container. Since the PaginationServiceProvider binds to paginator, calling $app->make("Illuminate\Pagination\Factory") twice should generate two distinct factories. If you're using namespaces, a service provider to inject the factories into your controller might look like:

class DoublyPaginatedControllerServiceProvider extends ServiceProvider {
    public function register($app)
    {
        $this->bindShared('paginator.photos', function ($app) {
            $factory = $app->make('Illuminate\Pagination\Factory');
            $factory->setPageName('photoPage');
            return $factory;
        });

        $this->bindShared('paginator.comments', function ($app) {
            $factory = $app->make('Illuminate\Pagination\Factory');
            $factory->setPageName('commentPage');
            return $factory;
        });

        $this->app->bindShared('Namespace\DoublyPaginatedController', function ($app) {
            return new DoublyPaginatedController(
                $app['paginator.photos'],
                $app['paginator.comments']
            );
        }
    }
}

Of course, the downside here is that you can't use Eloquent's Model::paginate() -- you'd need to manually determine which set of items to get and pass them to each Factory's make() method.