在具有多个变体的 Woocommerce 产品变体旁边显示 "Out of Stock" 文本

Showing "Out of Stock" text next to variation in Woocommerce product with multuiple variations

我一直在到处寻找,但我似乎无法找到解决一个非常简单的问题的方法。我有一个 Woocommerce 商店,如果缺货,我想在变体旁边向用户显示一条消息“缺货”。我不希望它变灰,我希望用户能够 select 它以便他们可以根据需要查看价格。我在网上找到的大多数片段仅在产品具有一种变体时才有效,但我需要它至少在两种情况下起作用。我的网站销售移动设备,例如:

如果用户select将存储空间设置为 64GB,则颜色列表会更新,显示 64GB 中哪些颜色缺货。如果所有颜色都缺货,那么在 64GB 旁边也会显示“缺货”。

如果先 select 编辑颜色,然后存储 - 然后用缺货的颜色更新颜色列表。

有人可以帮我吗?疯狂地试图让这个工作。下面的代码可以按照我上面提到的方式(它适用于多种产品)使缺货产品变灰,但我不知道如何针对上面提到的用例修改它。

add_filter( 'woocommerce_variation_is_active', 'grey_out_variations_when_out_of_stock', 10, 2 );
function grey_out_variations_when_out_of_stock( $grey_out, $variation ){
if ( ! $variation->is_in_stock() ){
  return false;
 }else{
print_r($option_class);
  return $term_name . ' - Out of Stock';;
 }
}

您可以检查产品变体的可用性只有在除一个属性之外的所有属性都已被选择时,而不是之前。

所有必要的数据都显示在产品页面上,因此您可以使用 jQuery 脚本来处理它。

在变体形式中有 data-product_variations 属性,它包含一个数组,其中包含产品变体的所有详细信息(变体 ID、库存状态、它使用的属性等)。

然后您可以比较所选属性和可能的​​产品变体。

思路是这样的:

  1. 检查产品页面上是否有多个属性(下拉)
  2. 如果除了一个以外的所有属性(下拉列表)都被选中,获取属性 slug 和所选选项的属性值
  3. 它将它们与每个单独变体使用的属性进行比较,如果所选属性相同,获取最后一个要选择的属性的库存状态
  4. 将文本 “缺货” 添加到产品变体缺货的每个选项。为此,它将使用 woocommerce_update_variation_values 事件,该事件在通过 Ajax 更新选项后触发(否则更改将被覆盖)

The following code will work for 2 or more attributes (dropdowns) in the variable product page.

// add the text "Out of stock" to each option of the last unselected attribute dropdown
add_action( 'wp_footer', 'add_out_of_stock_text_to_the_last_unselected_attribute_dropdown' );
function add_out_of_stock_text_to_the_last_unselected_attribute_dropdown() {

    ?>
    <script type="text/javascript">

    // initializes a global variable that will contain the attribute values to be updated ("Out of stock")
    let globalAttributesToUpdate;

    jQuery(function($){

        // check if only one attribute is missing to be selected
        function isLastAttribute(){
            // if there is only one dropdown it returns false
            if ( $('form.variations_form select').length == 1 ) {
                return false;
            }
            // counts all selected attributes (excluding "Choose an option")
            let count = 0;
            $('form.variations_form select').each(function(){
                if ( $(this).find(':selected').val() ) {
                    count++;
                }
            });
            // if an attribute has not yet been selected, it returns true
            if ( $('form.variations_form select').length - count == 1 ) {
                return true;
            } else {
                return false;
            }
        }

        $('form.variations_form select').change(function() {
            if ( isLastAttribute() ) {
                // clear the global variable every time
                globalAttributesToUpdate = [];
                let attrToFind = {}; // contains an object with slug and value of the selected attributes
                let attrToSet; // contains the slug of the attribute not yet selected
                $('form.variations_form select').each(function(index,object){
                    if ( $(this).find(":selected").val() ) {
                        attrToFind[$(this).data('attribute_name')] = $(this).find(":selected").val();
                    } else {
                        attrToSet = $(this).data('attribute_name');
                    }
                });
                // gets the value of the "data-product_variations" attribute of the variations form
                let variationData = $('form.variations_form').data("product_variations");
                $(variationData).each(function(index,object) {
                    let attrVariation = object.attributes;
                    let attrVariationLenght = Object.keys(attrVariation).length;
                    let found = 0;
                    let toSet;
                    let valueToSet;
                    // check all possible combinations of attributes (for single variation)
                    // based on the selected attributes
                    $.each( attrVariation, function( attr, value ) {
                        if ( attr in attrToFind && attrToFind[attr] == value ) {
                            found++;
                        } else {
                            // if the variation is out of stock it gets slug and value to add the text "Out of stock"
                            if ( object.is_in_stock == false ) {
                                toSet = attr;
                                valueToSet = value;
                            }
                        }
                    });
                    // if only one attribute is missing
                    if ( attrVariationLenght - found == 1 ) {
                        if ( toSet == attrToSet ) {
                            let obj = {};
                            obj[toSet] = valueToSet;
                            globalAttributesToUpdate.push(obj);
                        }
                    }
                });
            }
        });

        // inserts the text "Out of stock" after updating the variations
        // based on the "globalAttributesToUpdate" global variable
        $('body').on('woocommerce_update_variation_values', function(){
            if ( globalAttributesToUpdate !== undefined && globalAttributesToUpdate.length ) {
                $.each( globalAttributesToUpdate, function( key, attribute ) {
                    $.each( attribute, function( attrName, attrValue ) {
                        $('select[name='+attrName+'] > option[value="'+attrValue+'"]').append( " (Out of stock)" );
                    });
                });
            }
        });
    });
    </script>
    <?php

}

代码已经过测试并且可以工作。将它添加到您的活动主题 functions.php.

结果

相关答案

  • Display variation stock status on single dropdown variable products in Wocommerce 3

add_filter('woocommerce_variation_option_name', 'display_price_in_variation_option_name');
function display_price_in_variation_option_name($term)
{
    global $wpdb, $product;
    $result = $wpdb->get_col("SELECT slug FROM {$wpdb->prefix}terms WHERE name = '$term'");
    $term_slug = (!empty($result)) ? $result[0] : $term;
    $query = "SELECT postmeta.post_id AS product_id
                FROM {$wpdb->prefix}postmeta AS postmeta
                    LEFT JOIN {$wpdb->prefix}posts AS products ON ( products.ID = postmeta.post_id )
                WHERE postmeta.meta_key LIKE 'attribute_%'
                    AND postmeta.meta_value = '$term_slug'
                    AND products.post_parent = $product->id";
    $variation_id = $wpdb->get_col($query);
    $parent = wp_get_post_parent_id($variation_id[0]);
    if ($parent > 0) {
        $_product = new WC_Product_Variation($variation_id[0]);
        $_currency = get_woocommerce_currency_symbol();
        $stock = $_product->is_in_stock() ? 'instock' : 'out of stock';
        return $term . ' (' . $_product->get_price()  . ' ' . $_currency . ') &nbsp;- &nbsp;' . $stock;
    }
    return $term;
}