按产品 ID 获取产品自定义分类术语

如何解决按产品 ID 获取产品自定义分类术语

我已经为“产品”帖子类型注册了两个分类法。称他们为pa_brand & pa_model

我创建了一个前端表单来编辑通过 $product_id 从 URL 参数获取产品数据的产品。

我需要的是通过 pa_brand 获得 pa_model 和 $product_id 的相关术语。

以下操作仅适用于单个产品页面，以便我可以获得与产品相关的正确术语。

$models = get_the_terms( $product->get_ID(),'pa_model' );
echo '<pre>'; print_r( $models ); echo '</pre>';

$brands = get_the_terms( $product->get_ID(),'pa_brand' );
echo '<pre>'; print_r( $brands ); echo '</pre>';

$cats = get_the_terms( $product->get_ID(),'product_cat' );
echo '<pre>'; print_r( $cats ); echo '</pre>';

___________________________

RESULTS:

Array
(
    [0] => WP_Term Object
        (
            [term_id] => 28
            [name] => FKS
            [slug] => fks
            [term_group] => 0
            [term_taxonomy_id] => 28
            [taxonomy] => pa_model
            [description] => 
            [parent] => 0
            [count] => 3
            [filter] => raw
        )

)

Array
(
    [0] => WP_Term Object
        (
            [term_id] => 36
            [name] => MAN
            [slug] => man
            [term_group] => 0
            [term_taxonomy_id] => 36
            [taxonomy] => pa_brand
            [description] => 
            [parent] => 0
            [count] => 3
            [filter] => raw
        )

)

Array
(
    [0] => WP_Term Object
        (
            [term_id] => 39
            [name] => Truck
            [slug] => truck
            [term_group] => 0
            [term_taxonomy_id] => 39
            [taxonomy] => product_cat
            [description] => 
            [parent] => 0
            [count] => 2
            [filter] => raw
        )

)

但如果页面不是单一产品，即 http://example.com/?manage_product=206 ，我会同时关注 pa_brand 和 pa_model 的 WP_Error。

$models = get_the_terms( $product_id,'pa_model' );
echo '<pre>'; print_r( $models ); echo '</pre>';

$brands = get_the_terms( $product_id,'pa_brand' );
echo '<pre>'; print_r( $brands ); echo '</pre>';

$cats = get_the_terms( $product_id,'product_cat' );
echo '<pre>'; print_r( $cats ); echo '</pre>';

___________________________

RESULTS:

WP_Error Object
(
    [errors] => Array
        (
            [invalid_taxonomy] => Array
                (
                    [0] => Invalid taxonomy.
                )

        )

    [error_data] => Array
        (
        )

    [additional_data:protected] => Array
        (
        )

)

WP_Error Object
(
    [errors] => Array
        (
            [invalid_taxonomy] => Array
                (
                    [0] => Invalid taxonomy.
                )

        )

    [error_data] => Array
        (
        )

    [additional_data:protected] => Array
        (
        )

)

Array
(
    [0] => WP_Term Object
        (
            [term_id] => 39
            [name] => Truck
            [slug] => truck
            [term_group] => 0
            [term_taxonomy_id] => 39
            [taxonomy] => product_cat
            [description] => 
            [parent] => 0
            [count] => 2
            [filter] => raw
        )

)

短代码

function frontend_add_product_form($product_id){

    global $product_id;
    $product = new WC_Product( $product_id );

    $koostis = get_the_terms( $product_id,'pa_brand',array( 'fields' => 'names' ) );
    echo 'koostis<br><pre>'; print_r( $koostis ); echo '</pre>';
}
add_shortcode('frontend-add-product-form','frontend_add_product_form');

我已经被困在其中几个小时了，无法弄清楚，如何按产品 ID 从自定义分类法中获取相关术语？

解决方法

我发现了这个问题。我必须将 0 添加到自定义自定义分类法的 init 操作中。

add_action( 'init','register_product_taxonomy',0 );

function register_product_taxonomy() {

    register_taxonomy(
        'pa_brand','product',array(
            'label' => __( 'Brand' ),'rewrite' => array( 'slug' => 'car_brand' ),'hierarchical' => true,)
    );  

    register_taxonomy(
        'pa_model',array(
            'label' => __( 'Model' ),'rewrite' => array( 'slug' => 'car_model' ),)
    );
}