PrestaShop 1.7 自定义模块中正确生成和显示分类链接

<?php

// ... 你的模块类定义 ...

class YourModule extends Module
{
    // ... 构造函数、安装/卸载方法等 ...

    public function getContent()
    {
        // ... 其他逻辑 ...

        // 获取所有分类数据
        $allCategories = Category::getNestedCategories(null, $this->context->language->id);

        // 将分类数据赋值给 Smarty
        $this->context->smarty->assign('allCategories', $allCategories);

        // 关键步骤：将 Link 对象赋值给 Smarty
        $this->context->smarty->assign('link', $this->context->link);

        // 渲染模板
        return $this->fetch('module:' . $this->name . '/views/templates/widget/block.tpl');
    }

    // ... 其他方法 ...
}

{foreach from=$allCategories item=mainCategory}
   {* 使用 $link->getCategoryLink 方法生成主分类链接 *}
   <a href="{$link->getCategoryLink($mainCategory.id_category, $mainCategory.link_rewrite)|escape:'html':'UTF-8'}">
       {$mainCategory.name}
   </a>
   {if isset($mainCategory.children) && !empty($mainCategory.children)}
       <ul>
           {foreach from=$mainCategory.children item=subCategory}
               <li>
                   {* 使用 $link->getCategoryLink 方法生成子分类链接 *}
                   <a href="{$link->getCategoryLink($subCategory.id_category, $subCategory.link_rewrite)|escape:'html':'UTF-8'}">
                       {$subCategory.name}
                   </a>
               </li>
           {/foreach}
       </ul>
   {/if}
{/foreach}

<?php

if (!defined('_PS_VERSION_')) {
    exit;
}

class YourModule extends Module
{
    public function __construct()
    {
        $this->name = 'yourmodule';
        $this->tab = 'front_office_features';
        $this->version = '1.0.0';
        $this->author = 'Your Name';
        $this->need_instance = 0;
        $this->ps_versions_compliancy = [
            'min' => '1.7.0.0',
            'max' => _PS_VERSION_,
        ];
        $this->bootstrap = true;

        parent::__construct();

        $this->displayName = $this->l('My Custom Category Display');
        $this->description = $this->l('Displays categories with custom links.');

        $this->confirmUninstall = $this->l('Are you sure you want to uninstall?');
    }

    public function install()
    {
        return parent::install() && $this->registerHook('displayHome'); // 示例挂钩
    }

    public function uninstall()
    {
        return parent::uninstall();
    }

    /**
     * Hook for displaying content on the home page (example)
     */
    public function hookDisplayHome()
    {
        // 获取所有嵌套分类
        $allCategories = Category::getNestedCategories(null, $this->context->language->id);

        // 将分类数据赋值给 Smarty
        $this->context->smarty->assign('allCategories', $allCategories);

        // 将 Link 对象赋值给 Smarty
        $this->context->smarty->assign('link', $this->context->link);

        // 渲染模板
        return $this->fetch('module:' . $this->name . '/views/templates/hook/displayHome.tpl');
    }
}

<div class="custom-category-list">
    <h3>{l s='Our Product Categories' mod='yourmodule'}</h3>
    <ul>
        {foreach from=$allCategories item=mainCategory}
            <li>
                <a href="{$link->getCategoryLink($mainCategory.id_category, $mainCategory.link_rewrite)|escape:'html':'UTF-8'}"
                   title="{$mainCategory.name|escape:'html':'UTF-8'}">
                    {$mainCategory.name|escape:'html':'UTF-8'}
                </a>
                {if isset($mainCategory.children) && !empty($mainCategory.children)}
                    <ul class="sub-categories">
                        {foreach from=$mainCategory.children item=subCategory}
                            <li>
                                <a href="{$link->getCategoryLink($subCategory.id_category, $subCategory.link_rewrite)|escape:'html':'UTF-8'}"
                                   title="{$subCategory.name|escape:'html':'UTF-8'}">
                                    {$subCategory.name|escape:'html':'UTF-8'}
                                </a>
                            </li>
                        {/foreach}
                    </ul>
                {/if}
            </li>
        {/foreach}
    </ul>
</div>