Question

我有一些主题内置的自定义分类法，在分类法下拉列表中，分类法没有显示在层次结构中。它只显示所有分类法的下拉列表，但不是按层次顺序排列。

这就是我所拥有的：

register_taxonomy(
        'recipesets',
        'recipe',
        array(
            'public'=>true,
            'hierarchical' => true,
            'labels'=> $labels,
            'query_var' => 'recipesets',
            'show_ui' => true,
            'rewrite' => array( 'slug' => 'recipesets', 'with_front' => false ),
        )
    );                    
}

并致电：

<label for="edit-title" class="control-label"><i class="fa fa-folder-o"></i><?php _e('Category:', 'agrg') ?></label>
                        <select name="cat" id="cat" class="postform">
                            <?php

                            $terms = get_terms("recipesets", "orderby=count&hide_empty=0");
                            if ( !is_wp_error( $terms ) ) {
                                foreach ( $terms as $term ) {
                                   echo "<option value='" . $term->name . "'>" . $term->name . "</option>";

                                }
                            }

                            ?>
                        </select>

怎么办？

Answer 1

我就是这样做的：

<?php
    /** The taxonomy we want to parse */
    $taxonomy = "category";
    /** Get all taxonomy terms */
    $terms = get_terms($taxonomy, array(
            "orderby"    => "count",
            "hide_empty" => false
        )
    );
    /** Get terms that have children */
    $hierarchy = _get_term_hierarchy($taxonomy);
    ?>
    <select name="terms" id="terms">
        <?php
            /** Loop through every term */
            foreach($terms as $term) {
                /** Skip term if it has children */
                if($term->parent) {
                    continue;
                }
                echo '<option value="' . $term->name . '">' . $term->name . '</option>';
                /** If the term has children... */
                if($hierarchy[$term->term_id]) {
                    /** ...display them */
                    foreach($hierarchy[$term->term_id] as $child) {
                        /** Get the term object by its ID */
                        $child = get_term($child, "category");
                        echo '<option value="' . $term->name . '"> - ' . $child->name . '</option>';
                    }
                }
            }
        ?>
    </select>

Answer 2

为什么不使用Wordpress函数wp_dropdown_categories()来为您完成所有工作

$tax_args = array(
  'taxonomy'     => 'destination',
  'orderby'      => 'name',
  'show_count'   => 1,
  'hierarchical' => 1,
);
wp_dropdown_categories($tax_args);

分层分类法下拉wordpress

2 个答案: