在类别页面上显示同级类别

时间：2022-01-18 作者：Alex Osipov

我有一个类别页面，如何在此页面上显示此类别的兄弟类别？我知道如何显示子类别：

<ul class="slider-container-list sub-categories-block front-categories-block front-categories-scroll">
        <?php
            $term = get_queried_object();
            $children = get_terms( $term->taxonomy, array(
                    \'parent\'    => $term->term_id,
                    \'hide_empty\' => false
            ) );
            if ( $children ) {
                    foreach( $children as $subcat ){
                            echo \'<li class="category-thumbnail-item"><a class="category-thumbnail" href="\' . esc_url(get_term_link($subcat, $subcat->taxonomy)) . \'">\';
                            echo \'<div class="category-thumbnail-image"><img src="\' . z_taxonomy_image_url($subcat->term_id, \'medium\'). \'" data-pin-nopin="true" alt="\'. $subcat->name .\' Sub Category Image"> </div>\';
                            echo \'<div class="category-title">\' . $subcat->name . \'</div></a></li>\';
                    }
            }
            ?>
         </ul>

现在我想知道如何显示兄弟姐妹。。。我应该在之后调用父ID和子ID吗？我想我需要以某种方式获得term\\u id，我确信我遗漏了一些东西：(

             <ul class="slider-container-list sub-categories-block front-categories-block front-categories-scroll">
             <?php
             $term_id = 10;
             $taxonomy_name = \'products\';
             $termchildren = get_term_children( $term_id, $taxonomy_name );

                 if ( $termchildren ) {
                         foreach ( $termchildren as $child ){
                                 echo \'<li class="category-thumbnail-item"><a class="category-thumbnail" href="\' . esc_url(get_term_link($child, $child->taxonomy)) . \'">\';
                                 echo \'<div class="category-thumbnail-image"><img src="\' . z_taxonomy_image_url($child->term_id, \'medium\'). \'" data-pin-nopin="true" alt="\'. $child->name .\' Sub Category Image"> </div>\';
                                 echo \'<div class="category-title">\' . $child->name . \'</div></a></li>\';
                         }
                 }
                 ?>
                </ul>

我假设，但我如何从这个列表中排除我所在的现有类别。希望有意义：）请帮助任何人？

UPDATE: 所以我找到了解决方案：

<ul class="slider-container-list sub-categories-block front-categories-block front-categories-scroll">
<?php
$term = get_queried_object();
$children = get_terms( $term->taxonomy, array(
        \'parent\'    => $term->term_id,
        \'hide_empty\' => false
) );
if ( $children ) {
        foreach( $children as $subcat ){
                echo \'<li class="category-thumbnail-item"><a class="category-thumbnail" href="\' . esc_url(get_term_link($subcat, $subcat->taxonomy)) . \'">\';
                echo \'<div class="category-thumbnail-image"><img src="\' . z_taxonomy_image_url($subcat->term_id, \'medium\'). \'" data-pin-nopin="true" alt="\'. $subcat->name .\' Sub Category Image"> </div>\';
                echo \'<div class="category-title">\' . $subcat->name . \'</div></a></li>\';
        }
}
?>
</ul>
<ul class="slider-container-list sub-categories-block front-categories-block front-categories-scroll">
 <?php
     $term = get_queried_object();
     $siblings = get_terms( $term->taxonomy, array(
         \'parent\'    => $term->parent,
         \'taxonomy\'   => $taxonomy_name,
         \'exclude\'    => array( $current_term->term_id ),
         \'hide_empty\' => false,
     ) );
     if ( $siblings ) {
             foreach( $siblings as $sibling ){
                     echo \'<li class="category-thumbnail-item"><a class="category-thumbnail" href="\' . esc_url(get_term_link($sibling, $sibling->taxonomy)) . \'">\';
                     echo \'<div class="category-thumbnail-image"><img src="\' . z_taxonomy_image_url($sibling->term_id, \'medium\'). \'" data-pin-nopin="true" alt="\'. $sibling->name .\' Sub Category Image"> </div>\';
                     echo \'<div class="category-title">\' . $sibling->name . \'</div></a></li>\';
             }
     }
     ?>
    </ul>

我可以在这里展示兄弟姐妹，但现在我的挑战是

排除我所在的现有类别

并且不显示顶级父类别的兄弟姐妹

2 个回复

最合适的回答,由SO网友:Sally CJ 整理而成

我有一个类别页面，如何在此页面上显示此类别同级类别？我知道如何显示儿童类别

我想我需要弄到term\\u id

在术语存档页上，例如example.com/category/foo/ （对于默认值category 分类学），

您可以使用get_queried_object() 检索所查询术语的术语对象(foo 在上面的示例URL中）。

$term = get_queried_object();
$term_id = $term->term_id;

get_queried_object_id() 仅检索所查询术语的术语ID。

$term_id = get_queried_object_id();

现在，对于检索术语的同级，您可以使用get_terms() 就像你在检索学期的孩子时所做的那样。例如，对于被查询的术语（或者简单地说，当前术语），

$taxonomy_name = \'products\';

// Get the full term object/data.
$current_term = get_queried_object();

// Get the term\'s direct children.
// **Use \'child_of\' instead of \'parent\' to retrieve direct and non-direct children.
$children = get_terms( array(
    \'taxonomy\'   => $taxonomy_name,
    \'parent\'     => $current_term->term_id,
    \'hide_empty\' => false,
) );

// Display the children.
if ( ! empty( $children ) ) {
    echo "<h3>Children of $current_term->name</h3>";
    echo \'<ul>\';

    foreach ( $children as $child ) {
        echo "<li>$child->name</li>";
    }

    echo \'</ul>\';
}

// Get the term\'s direct siblings.
$siblings = get_terms( array(
    \'taxonomy\'   => $taxonomy_name,
    \'parent\'     => $current_term->parent,
    \'exclude\'    => array( $current_term->term_id ),
    \'hide_empty\' => false,
) );

// Display the siblings.
if ( ! empty( $siblings ) ) {
    echo "<h3>Siblings of $current_term->name</h3>";
    echo \'<ul>\';

    foreach ( $siblings as $sibling ) {
        echo "<li>$sibling->name</li>";
    }

    echo \'</ul>\';
}

如果你想使用get_term_children(), 请注意，它检索所有直接子级和非直接子级（就像get_terms() 如果child_of ，函数返回一个术语数组IDs，因此在您的foreach, 您可以使用get_term() 获取完整术语对象/数据。

$term_id = get_queried_object_id(); // or just use a specific term ID, if you want to
$termchildren = get_term_children( $term_id, $taxonomy_name );

foreach ( $termchildren as $child_id ) {
    $child = get_term( $child_id );
    // ... your code.
}

如何从此列表中排除我所在的现有类别

如果您使用get_terms(), 您可以使用exclude arg，就像您可以在上面的示例中看到的一样。

如果您使用get_term_children(), 然后您可以使用continue like so：（但这只是一个例子；你可以使用array_filter() 筛选$termchildren 如果需要，请在循环项目之前排列）

foreach ( $termchildren as $child_id ) {
    if ( (int) $child_id === (int) $term_id ) {
        continue;
    }

    $child = get_term( $child_id );
    // ... your code.
}

SO网友:Alex Osipov

<ul class="display-children-block slider-container-list sub-categories-block front-categories-block front-categories-scroll">
<?php
$term = get_queried_object();
$children = get_terms( $term->taxonomy, array(
\'parent\'    => $term->term_id,
\'hide_empty\' => false
) );
if ( $children ) {
foreach( $children as $subcat ){
        echo \'<li class="category-thumbnail-item"><a class="category-thumbnail" href="\' . esc_url(get_term_link($subcat, $subcat->taxonomy)) . \'">\';
        echo \'<div class="category-thumbnail-image"><img src="\' . z_taxonomy_image_url($subcat->term_id, \'medium\'). \'" data-pin-nopin="true" alt="\'. $subcat->name .\' Sub Category Image"> </div>\';
        echo \'<div class="category-title">\' . $subcat->name . \'</div></a></li>\';
}
}
?>
</ul>
<ul class="display-siblings-block slider-container-list sub-categories-block front-categories-block front-categories-scroll">
    <?php
$term = get_queried_object();
$siblings = get_terms( $term->taxonomy, array(
 \'parent\'    => $term->parent,
   \'taxonomy\'   => $taxonomy_name,
   \'exclude\'    => array( $term->term_id ),
   \'hide_empty\' => false,
) );

if ( $siblings ) {
     foreach( $siblings as $sibling ){
             echo \'<li class="category-thumbnail-item"><a class="category-thumbnail" href="\' . esc_url(get_term_link($sibling, $sibling->taxonomy)) . \'">\';
             echo \'<div class="category-thumbnail-image"><img src="\' . z_taxonomy_image_url($sibling->term_id, \'medium\'). \'" data-pin-nopin="true" alt="\'. $sibling->name .\' Sub Category Image"> </div>\';
             echo \'<div class="category-title">\' . $sibling->name . \'</div></a></li>\';
     }
}
?>
</ul>

这就是我为这一切所做的一切，它是有效的！

此外，此代码段还将类添加到：

add_filter( \'body_class\', \'custom_cat_archiev_class\' );
function custom_cat_archiev_class( $classes ) {
    if ( is_category() ) {
        $cat = get_queried_object();
        $ancestors = get_ancestors( $cat->term_id, \'category\', \'taxonomy\' );
        $classes[] = \'category-level-\' . ( count( $ancestors ) + 1 );
    }
    return $classes;
}

我正在使用css从顶级类别中删除同级。

老实说，我认为我可以让它更干净，没有类和css。但我不知道怎么做！

小码农CODE

在类别页面上显示同级类别

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仅授予ASSIGN_TERMS功能时，仍可添加分类术语