如何在自定义循环中获取 woocommerce 可变产品的最低和最高价格？

我在 Wordpress 中创建了一个自定义休息路线，它采用产品类别 ID 并将发送属于该类别的产品。

我的问题是我无法找到一种方法来在我的自定义循环中获取可变产品的最低和最高价格。

谁能帮我解决这个问题吗？ 谢谢

我尝试使用以下方法获取变化价格get_variation_prices()但似乎我错过了一些东西。

add_action( 'rest_api_init' , 'wt_rest_api'); 
function wt_rest_api(){
   register_rest_route('wtrest','products',array(
           'methods'   => WP_REST_SERVER::READABLE,
           'callback'  => 'wtProductResults'
       )); 
} 

function wtProductResults($data){
    $products = new WP_Query([
           'post_type' => 'product',
           'tax_query' => array(
                               array(
                                   'taxonomy' => 'product_cat',
                                   'field' => 'term_id', //can be set to ID
                                   'terms' => $data['cat'] //if field is ID you can reference by cat/term number
                               )
                           )
        ]);

    $productsResults = [];
    global $woocommerce;
    global $product;
   $currency = get_woocommerce_currency_symbol();

    while($products->have_posts()){
        $products->the_post();
        $product_cat = get_term(  $data['cat'], 'product_cat', 'category', "OBJECT" );
        $regularPrice = get_post_meta( get_the_ID(), '_regular_price', true);
        $sale = get_post_meta( get_the_ID(), '_sale_price', true);
        $price = get_post_meta( get_the_ID(), '_price', true );
        array_push($productsResults , [
               'title' => get_the_title(),
               'productId' => get_the_id(),
               'permalink' => get_the_permalink(),
               'thumbnail' => get_the_post_thumbnail(),
               'excerpt' => get_the_excerpt(),
               'regularPrice' => $regularPrice,
               'price'     => $price,
               'salePrice' => $sale,
               'category' => $product_cat->name,
               'variationPrice' => get_variation_prices()//**Here is My problem**
            ]);
    }
    wp_reset_postdata();    
    return $productsResults;

}

这是我的代码，当我使用时get_variation_prices()我没有从休息路线收到任何回复

功能get_variation_prices()是一种方法WC_Product_Variable类，它专门用作可变产品实例对象上的方法。它给出了所有变化价格的多维数组。

获取最小和最大变化价格，你必须使用WC_Product_Variable methods:

• get_variation_regular_price() or get_variation_regular_price('max')
• get_variation_sale_price() or get_variation_sale_price('max')
• get_variation_price() or get_variation_price('max')

现在在您的代码中：

• 你首先需要得到WC_Product实例对象。
• 检查产品类型。
• remove global $product;因为它是空的并且没有用。
• （您可能需要根据您的要求进行其他更改）

现在查询产品有多种方式：

1）使用WP_Query （就像你实际做的那样）:

function wtProductResults($data){
    global $woocommerce;
    
    $products = new WP_Query([
       'post_type' => 'product',
       'tax_query' => array( array(
            'taxonomy' => 'product_cat',
            'field' => 'term_id', //can be set to ID
            'terms' => $data['cat'] //if field is ID you can reference by cat/term number
        ) )
    ]);
    
    $productsResults = [];
    $currency        = get_woocommerce_currency_symbol();
   
    if ( $products->have_posts() ) :
    while ( $products->have_posts() ) : $products->the_post();
    
    $product_cat = get_term(  $data['cat'], 'product_cat', 'category', "OBJECT" );
        
    // Get an instance of the WC_Product object
    $product = wc_get_product( get_the_ID() );
    
    if( $product->is_type('variable') ) {
        // Min variation price
        $regularPriceMin = $product->get_variation_regular_price(); // Min regular price
        $salePriceMin    = $product->get_variation_sale_price(); // Min sale price
        $priceMin        = $product->get_variation_price(); // Min price
    
        // Max variation price
        $regularPriceMax = $product->get_variation_regular_price('max'); // Max regular price
        $salePriceMax    = $product->get_variation_sale_price('max'); // Max sale price
        $priceMax        = $product->get_variation_price('max'); // Max price
    
        // Multi dimensional array of all variations prices 
        $variationsPrices = $product->get_variation_prices(); 
        
        $regularPrice = $salePrice = $price = '';
        $variationPrice = [
            'min' => $product->get_variation_price(),
            'max' => $product->get_variation_price('max')
        ];
    } 
    // Other product types
    else {
        $regularPrice   = $product->get_regular_price();
        $salePrice      = $product->get_sale_price();
        $price          = $product->get_price(); 
        $variationPrice = ['min' => '', 'max' => ''];
    }
    
    array_push( $productsResults , [
       'title'          => get_the_title(),
       'productId'      => get_the_id(),
       'permalink'      => get_the_permalink(),
       'thumbnail'      => get_the_post_thumbnail(),
       'excerpt'        => get_the_excerpt(),
       'regularPrice'   => $regularPrice,
       'price'          => $price,
       'salePrice'      => $salePrice,
       'category'       => $product_cat->name,
       'variationPrice' => $variationPrice,
    ]);
    
    endwhile; 
    wp_reset_postdata();
    endif;
    
    return $productsResults;
}

2）使用WC_Product_Query相反，像：

function wtProductResults($data){
    global $woocommerce;
    
    $products = wc_get_products( array(
        'status'    => 'publish',
        'limit'     => -1,
        'category'  => array($data['cat']),
    ) );
    
    $productsResults = [];
    $currency        = get_woocommerce_currency_symbol();
   
    if ( sizeof($products) > 0 ) :
    foreach ( $products as $product ) :
    
    $term_name = get_term( $data['cat'], 'product_cat' )->name;
    
    if( $product->is_type('variable') ) {
        // Min variation price
        $regularPriceMin = $product->get_variation_regular_price(); // Min regular price
        $salePriceMin    = $product->get_variation_sale_price(); // Min sale price
        $priceMin        = $product->get_variation_price(); // Min price
    
        // Max variation price
        $regularPriceMax = $product->get_variation_regular_price('max'); // Max regular price
        $salePriceMax    = $product->get_variation_sale_price('max'); // Max sale price
        $priceMax        = $product->get_variation_price('max'); // Max price
    
        // Multi dimensional array of all variations prices 
        $variationsPrices = $product->get_variation_prices(); 
        
        $regularPrice = $salePrice = $price = '';
        $variationPrice = [
            'min' => $product->get_variation_price(),
            'max' => $product->get_variation_price('max')
        ];
    } 
    // Other product types
    else {
        $regularPrice   = $product->get_regular_price();
        $salePrice      = $product->get_sale_price();
        $price          = $product->get_price(); 
        $variationPrice = ['min' => '', 'max' => ''];
    }
    
    array_push( $productsResults , [
       'title'          => $product->get_name(),
       'productId'      => $product->get_id(),
       'permalink'      => $product->get_permalink(),
       'thumbnail'      => $product->get_image(),
       'excerpt'        => $product->get_short_description(),
       'regularPrice'   => $regularPrice,
       'price'          => $price,
       'salePrice'      => $salePrice,
       'category'       => $term_name,
       'variationPrice' => $variationPrice,
    ]);
    
    endforeach; 
    endif;
    
    return $productsResults;
}