在 MAGENTO 的侧边栏导航中显示当前父类别的所有子类别

Question

尝试在 Magento 中构建侧边栏类别结构，以便在单击时显示活动类别的所有子项。使用下面的示例，当您进入主目录时，只会出现 Main Cats。然后，当单击任何 Sub Cat 时，会出现相应类别的子项，依此类推。

例如

Main Cat 1
    Sub Cat 1
        Sub/Sub 1
        Sub/Sub 1
        Sub/Sub 1
    Sub Cat 1
    Sub Cat 1
Main Cat 2
Main Cat 3

这是我当前的代码，但是一旦您进入最后一个类别，就只会显示 Main Cats（换句话说，如果您单击 Sub/Sub，菜单会关闭并仅显示 Main Cats）。

    <aside id="sidebar">
        <div class="sidebar-nav">
            <h2><?php echo $this->__('Products') ?></h2>
<ul>
<?php foreach ($store_cats as $cat) {
    if ($cat->getName() == $current_cat) {
        echo '<li><a href="'.$this->getCategoryUrl($cat).'">'.$cat->getName()."</a><ul>";
        foreach ($obj->getCurrentChildCategories() as $subcat) {
            echo '<li><a href="'.$this->getCategoryUrl($subcat).'">'.$subcat->getName()."</a></li>";
        }
        echo "</ul></li>";
    } else {
        echo '<li><a href="'.$this->getCategoryUrl($cat).'">'.$cat->getName()."</a></li>";
    }
} ?>
</ul>
        </div>
        <div class="sidebar-nav">
             <?php echo $this->getLayout()->createBlock('cms/block')->setBlockId('holiday-nav-links')->toHtml() ?> 
        </div>
        <div class="sidebar-nav">
             <?php echo $this->getLayout()->createBlock('cms/block')->setBlockId('about-us-nav-links')->toHtml() ?> 
        </div>
    </aside>

非常感谢任何帮助。提前感谢您的帮助！

Answer 1

<?php $_helper = Mage::helper('catalog/category') ?>
<?php $_categories = $_helper->getStoreCategories() ?>
<?php $currentCategory = Mage::registry('current_category') ?>
<?php if (count($_categories) > 0): ?>
    <ul>
        <?php foreach($_categories as $_category): ?>
            <li>
                <a href="<?php echo $_helper->getCategoryUrl($_category) ?>">
                    <?php echo $_category->getName() ?>
                </a>
                <?php $_category = Mage::getModel('catalog/category')->load($_category->getId()) ?>
                <?php $_subcategories = $_category->getChildrenCategories() ?>
                <?php if (count($_subcategories) > 0): ?>
                    <ul>
                        <?php foreach($_subcategories as $_subcategory): ?>
                            <li>
                                <a href="<?php echo $_helper->getCategoryUrl($_subcategory) ?>">
                                    <?php echo $_subcategory->getName() ?>
                                </a>
                            </li>
                        <?php endforeach; ?>
                    </ul>
                <?php endif; ?>
            </li>
        <?php endforeach; ?>
    </ul>
<?php endif; ?>

请查看此链接http://fishpig.co.uk/magento/tutorials/display-categories-and-subcategories-in-magento/

希望对你有帮助

Answer 2

几天前不得不做这件事。获取我的全部功能，但可能包含一些不必要的 html 部分。显示 2 级以上的类别（也适用于 3 级类别视图）

public function getCatTree()
 {
        $treeHtml = '';
        $_helper = Mage::helper('catalog/category');
        $_categories = $_helper->getStoreCategories();
        $category = Mage::registry('current_category');


        $level = $category->getLevel();
        switch($level)
        {
            case 4 :  
                    $level3Cat = $category->getParentCategory();
                    $level2Cat = $level3Cat->getParentCategory();
                    break;

            case 3 :
                    $level2Cat = $category->getParentCategory();
                    break;

            case 2 :
                    $level2Cat = $category;
                    break;

            default :
                    $level2Cat = null;  
                    break;
        }

        //get the level 2 category ID
        $categoryId = $level2Cat->getId();

        if (count($_categories) > 0) 
        {           
            foreach ($_categories as $_category) 
            {
                //match with the level 2 category, then list all its children
                if ($_category->getId() == $categoryId) 
                {
                    $_category = Mage::getModel('catalog/category')->load($_category->getId());
                    $_catChildrens = $_category->getAllChildren();

                    foreach(explode(',',$_catChildrens) as $index=>$child)
                    {
                            $cat = Mage::getModel('catalog/category')->load($child);
if($cat->getLevel() == 3 && $cat->getIsActive())
                            {
                                $isParent = ($cat->hasChildren()) ? 'parent' : '';
                                $treeHtml .= '<li class="level1 nav'.$cat->getLevel().' '.$isParent.'">'.
                                            '<a href="'.$cat->getUrl().'">'.
                                              $cat->getName().
                                                '</a>';

                                if($cat->hasChildren())
                                {
                                    $treeHtml .= '<div class="sub-menu-wrap"><ul class="level1">';
                                    foreach($cat->getChildrenCategories() as $indx=>$_subcategory)
                                    {
                                        if($_subcategory->getIsActive()) 
                                        {
                                            $cat4 = Mage::getModel('catalog/category')->load($indx);
                                            $treeHtml .= '<li class="level2 nav'.$cat4->getLevel().'">'.
                                            '<a href="'.$cat4->getUrl().'">'.
                                              $cat4->getName().
                                                '</a></li>';

                                        }
                                    }
                                    $treeHtml .= '</ul></div>';
                                }
                                $treeHtml .= '</li>';   
                            }


                    }
                    return $treeHtml;
 }
            }
        }

    }