Question

我有一个可能很简单但我无法弄明白的问题：）

我有一个纤细的3 / twig应用程序并且已经创建了一个全局变量，所以我可以在twig中获得currentUrl。

在模板文件中，我不是if语句，检查currentUrl是否包含字符串'/ forretter'，因此它只在for循环中显示这些产品。

如果我做一个简单的{{ currentUrl }}，它会按预期打印网址 - 但if语句似乎不接受currentUrl变量。

我曾试图做{% set url = currentUrl %}但没有运气。

我使用的if语句看起来像{% if '/forretter' in currentUrl %}我设置的所有其他if语句都像魅力一样。

家里有人对这个原因有所了解我开始在我的光头上留下白发：）

我现在尝试了Georgy Ivanov的回答，并尝试将其与我的代码相匹配 - 并且枝条扩展工作 - 但if语句没有。

这是我的容器代码

<?php

use function DI\get;
use Slim\Views\Twig;
use Cart\Basket\Basket;
use Cart\Models\Product;
use Cart\Models\Edit;
use Cart\Models\Order;
use Cart\Models\Customer;
use Cart\Models\Address;
use Cart\Models\Payment;
use Slim\Views\TwigExtension;
use Slim\Views\IsInUrlExtension;
use Interop\Container\ContainerInterface;
use Cart\Support\Storage\SessionStorage;
use Cart\Support\Storage\Contracts\StorageInterface;
use Cart\Validation\Contracts\ValidatorInterface;
use Cart\Validation\Validator;

return [
    'router' => get(Slim\Router::class),
    ValidatorInterface::class => function (ContainerInterface $c) {
        return new Validator;
    },
    StorageInterface::class => function (ContainerInterface $c) {
        return new SessionStorage('cart');
    },

    Twig::class => function (ContainerInterface $c) {
        $twig = new Twig(__DIR__ . '/../resources/views', [
          'debug' => true,
          'cache' => false,
        ]);

        $basePath = rtrim(str_ireplace('index.php', '', $c->get('request')->getUri()->getBasePath()), '/');
    // Add Slim specific extension
        $twig->addExtension(new Twig_Extension_Debug());
        $twig->addExtension(new TwigExtension(
            $c->get('router'), $basePath,
            $c->get('request')->getUri()
        ));
        $twig->addExtension(new IsInUrlExtension($c->get('request')->getUri()));
        $twig->getEnvironment()->addGlobal('currentUrl',$c->get('request')->getUri());
        $twig->getEnvironment()->addGlobal('basket', $c->get(Basket::class));

        return $twig;
    },

    Product::class => function (ContainerInterface $c) {
        return new Product;
    },

    Edit::class => function (ContainerInterface $c) {
        return new Edit;
    },

    Order::class=> function (ContainerInterface $c) {
        return new Order;
    },

    Customer::class=> function (ContainerInterface $c) {
        return new Customer;
    },

    Address::class=> function (ContainerInterface $c) {
        return new Address;
    },

    Payment::class=> function (ContainerInterface $c) {
        return new Payment;
    },

    Basket::class => function (ContainerInterface $c) {
        return new Basket(
            $c->get(SessionStorage::class),
            $c->get(Product::class)
        );
    }
];

这是带有if语句的twig代码

{% extends 'templates/app.twig' %}

{% block navigation %}
  {% include 'templates/partials/navigation.twig' %}
{% endblock %}

{% block content %}
<div class="row p__top">
  {% include 'templates/partials/sidebar_left.twig'  %}
  <section class="col-sm-12 col-md-6">
    <div class="product">

      {% if is_in_url('/forretter') %}

        <div class="row">
          <div class="categori__image">
            <img class="card-img-top"  src="{{site_url}}/images/varmrogetlaks.jpg" alt="Forretter">
          </div>
          <header class="menu__block">
            <h3 class="menu__title">Forretter</h3>
          </header>
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
            <div class="card-deck">
              {% include 'products/dinertransportable/partials/produkter.twig' %}

            </div>
        </div>

      {% else %}
        test2
      {{ dump(currentUrl) }}

      {% endif %}


    </div>
  </section>
  {% include 'templates/partials/sidebar_right.twig'  %}
</div>
{% endblock %}

Answer 1

你可以创建一个Twig扩展，如下所示：

<?php
class IsInUrlExtension extends \Twig_Extension
{
    public function __construct($currentUrl)
    {
        $this->currentUrl;
    }

    public function getName()
    {
        return 'extName';
    }

    public function getFunctions()
    {
        return [
            new \Twig_SimpleFunction('is_in_url', [$this, 'isInUrl']);
        ];
    }

    public function isInUrl(string $substr) : bool
    {
        return strpos($this->currentUrl, $substr) !== false;
    }
}

在您的容器中注册Twig组件时添加此扩展程序：

// Register component on container
$container['view'] = function ($container) {
    $view = new \Slim\Views\Twig('path/to/templates', [
        'cache' => 'path/to/cache'
    ]);

    // Instantiate
    $basePath = rtrim(str_ireplace('index.php', '', $container['request']->getUri()->getBasePath()), '/');
    // Add Slim specific extension
    $view->addExtension(new Slim\Views\TwigExtension($container['router'], $basePath));
    // Add your extension
    $view->addExtension(new IsInUrlExtension($container->get('request')->getUri()));

    return $view;
};

然后您可以在模板中使用它，如下所示：

{% if is_in_url('/forreter') %}
// substring is in current URL
{% endif %}

此方法的好处是您不必在模板中声明全局currentUrl变量，并且此strpos逻辑未在模板中实现，或者更确切地说，被封装在可重用扩展名中。

如果在twig / slim3中使用currenturl的语句

1 个答案: