以编程方式创建具有新属性值的 WooCommerce 产品变体 | 以编程方式创建具有新属性值的

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问题描述

我在 WooCommerce 版本 3+ 中创建了一个可变产品(父"产品).从 WordPress 插件，我想以编程方式创建具有新属性值的产品变体(儿童"产品).

WooCommerce 中已经设置了变体属性.
因此，每次创建一个变体时，新属性的值也应该以编程方式创建并设置在父变量产品中.

这是怎么做到的?有可能吗?

更新:我已经写了更多我希望的代码行，并尝试了很多方法来解决它，使用 woocommerce 对象，并添加了关于术语、termmeta、术语与帖子的关系的缺失数据，在使用 WordPress 数据库对象的数据库 - 但没有什么足以使它工作.而且我无法指出我哪里出错了——这就是为什么我不能提供一个更窄的问题——stackoverflow 更适合做的事情.

解决方案

I have created a variable product ("parent" product) in WooCommerce version 3+. From a WordPress plugin, I would like to programmatically create the product variations ("children" product) with new attribute values.

The variation attributes are already set in WooCommerce.
So every time one variation is created, the new attribute's values should be created programmatically too and set in the parent Variable product.

How can this be done? is it possible?

Update : I had written more lines of codes on this that I wished, and tried many things to solve it, using woocommerce objects, and added missing data about terms, termmeta, the relationship from term with post, in the database using the WordPress database object - but nothing has sufficed to make it work. And I couldn't pin-point where I went wrong - that is why I couldn't provide a narrower problem - things for which stackoverflow is more made for.

解决方案

From a defined variable product ID You will find below, a custom function that will add (create) a Product variation. The variable parent product needs to have set for it the needed attributes.

You will need to provide some information as:

the array of attributes/values
the Sku, prices and stock….

This data has to be stored in a formatted multi dimensional array (see an example at the end).

This function will check if the attributes values (term name) already exist and if not:

it create it for the product attribute
set it in the parent variable product.

The custom function code:

/**
 * Create a product variation for a defined variable product ID.
 *
 * @since 3.0.0
 * @param int   $product_id | Post ID of the product parent variable product.
 * @param array $variation_data | The data to insert in the product.
 */

function create_product_variation( $product_id, $variation_data ){
    // Get the Variable product object (parent)
    $product = wc_get_product($product_id);

    $variation_post = array(
        'post_title'  => $product->get_name(),
        'post_name'   => 'product-'.$product_id.'-variation',
        'post_status' => 'publish',
        'post_parent' => $product_id,
        'post_type'   => 'product_variation',
        'guid'        => $product->get_permalink()
    );

    // Creating the product variation
    $variation_id = wp_insert_post( $variation_post );

    // Get an instance of the WC_Product_Variation object
    $variation = new WC_Product_Variation( $variation_id );

    // Iterating through the variations attributes
    foreach ($variation_data['attributes'] as $attribute => $term_name )
    {
        $taxonomy = 'pa_'.$attribute; // The attribute taxonomy

        // If taxonomy doesn't exists we create it (Thanks to Carl F. Corneil)
        if( ! taxonomy_exists( $taxonomy ) ){
            register_taxonomy(
                $taxonomy,
               'product_variation',
                array(
                    'hierarchical' => false,
                    'label' => ucfirst( $attribute ),
                    'query_var' => true,
                    'rewrite' => array( 'slug' => sanitize_title($attribute) ), // The base slug
                ),
            );
        }

        // Check if the Term name exist and if not we create it.
        if( ! term_exists( $term_name, $taxonomy ) )
            wp_insert_term( $term_name, $taxonomy ); // Create the term

        $term_slug = get_term_by('name', $term_name, $taxonomy )->slug; // Get the term slug

        // Get the post Terms names from the parent variable product.
        $post_term_names =  wp_get_post_terms( $product_id, $taxonomy, array('fields' => 'names') );

        // Check if the post term exist and if not we set it in the parent variable product.
        if( ! in_array( $term_name, $post_term_names ) )
            wp_set_post_terms( $product_id, $term_name, $taxonomy, true );

        // Set/save the attribute data in the product variation
        update_post_meta( $variation_id, 'attribute_'.$taxonomy, $term_slug );
    }

    ## Set/save all other data

    // SKU
    if( ! empty( $variation_data['sku'] ) )
        $variation->set_sku( $variation_data['sku'] );

    // Prices
    if( empty( $variation_data['sale_price'] ) ){
        $variation->set_price( $variation_data['regular_price'] );
    } else {
        $variation->set_price( $variation_data['sale_price'] );
        $variation->set_sale_price( $variation_data['sale_price'] );
    }
    $variation->set_regular_price( $variation_data['regular_price'] );

    // Stock
    if( ! empty($variation_data['stock_qty']) ){
        $variation->set_stock_quantity( $variation_data['stock_qty'] );
        $variation->set_manage_stock(true);
        $variation->set_stock_status('');
    } else {
        $variation->set_manage_stock(false);
    }

    $variation->set_weight(''); // weight (reseting)

    $variation->save(); // Save the data
}

Code goes in function.php file of your active child theme (or theme) or also in any plugin file.

Usage (example with 2 attributes):

$parent_id = 746; // Or get the variable product id dynamically

// The variation data
$variation_data =  array(
    'attributes' => array(
        'size'  => 'M',
        'color' => 'Green',
    ),
    'sku'           => '',
    'regular_price' => '22.00',
    'sale_price'    => '',
    'stock_qty'     => 10,
);

// The function to be run
create_product_variation( $parent_id, $variation_data );

Tested and works.

You will get this in backend:

And it will work perfectly in front end.

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