wordpress - Woocommerce 以编程方式添加产品属性及其相应的值

Question

我正在构建一个获取产品的脚本，但我卡在了以编程方式添加属性的部分。所以基本上我想检查一个属性是否存在，如果不存在则添加它。然后检查它的值(value)是否存在，如果不存在，他们会添加它的值(value)，并将所有内容附加到我的产品上。

这是我获取产品的格式:

 [attributes] => Array
(
[0] => stdClass Object
    (
        [id] => 332
        [name] => Gender
        [value] => Woman
    )

[1] => stdClass Object
    (
        [id] => 333
        [name] => Wheel Size
        [value] => 28 Inch
    )

[2] => stdClass Object
    (
        [id] => 334
        [name] => Frame height
        [value] => 56 cm
    )

现在我已经尝试了 2 个版本，我将粘贴两个代码示例。

版本 1:

foreach($product->attributes as $attribute) {
$slug = 'pa_' . strtolower($attribute->name);
$attribute_name = $attribute->name;
$attribute_value = $attribute->value;

$permalinks = get_option( 'woocommerce_permalinks' );

$taxonomy_data = array(
                    'hierarchical'          => true,
                    'update_count_callback' => '_update_post_term_count',
                    'labels'                => array(
                            'name'              => $attribute_name
                        ),
                    'show_ui'           => false,
                    'query_var'         => true,
                    'sort'              => false,
                    'public'            => true,
                    'show_in_nav_menus' => false,
                    'capabilities'      => array(
                        'manage_terms' => 'manage_product_terms',
                        'edit_terms'   => 'edit_product_terms',
                        'delete_terms' => 'delete_product_terms',
                        'assign_terms' => 'assign_product_terms',
                    )
                );

register_taxonomy( $slug, array('product'), $taxonomy_data );
// @end_Debug

This version only added the attributes somehow attached to products, but they weren't visible under the Attributes Tab in Wordpress Admin. I would later want filters by these attributes, so I need the connection with Woocommerce attributes.

---

版本 2:

foreach($product->attributes as $attribute) {
$slug = 'pa_' . strtolower($attribute->name);
$attribute_name = $attribute->name;
$attribute_value = $attribute->value;
$table = $wpdb->prefix . 'woocommerce_attribute_taxonomies';

$attr = $wpdb->get_results( "SELECT * FROM {$table} WHERE attribute_name LIKE '%{$attribute_name}%'", OBJECT );
if(count($attr) > 0) {
    //
}
else {
    /** create taxonomy */
    $data = array(
        'attribute_label'   => $attribute_name,
        'attribute_name'    => $slug,
        'attribute_type'    => 'select',
        'attribute_orderby' => 'menu_order',
        'attribute_public'  => 0, // Enable archives ==> true (or 1)
    );

    $results = $wpdb->insert( "{$wpdb->prefix}woocommerce_attribute_taxonomies", $data );

    if ( is_wp_error( $results ) ) {
        return new WP_Error( 'cannot_create_attribute', $results->get_error_message(), array( 'status' => 400 ) );
    }

    $id = $wpdb->insert_id;

    do_action('woocommerce_attribute_added', $id, $data);

    wp_schedule_single_event( time(), 'woocommerce_flush_rewrite_rules' );
    /* end_Create */
}


// Clean attribute name to get the taxonomy
$taxonomy = 'pa_' . wc_sanitize_taxonomy_name( $attribute_name );

$option_term_ids = array(); // Initializing

// Loop through defined attribute data options (terms values)
if( term_exists( $attribute_value, $taxonomy ) ){
    // Save the possible option value for the attribute which will be used for variation later
    wp_set_object_terms( $product_id, $attribute_value, $taxonomy, true );
    // Get the term ID
    $option_term_ids[] = get_term_by( 'name', $attribute_value, $taxonomy )->term_id;
}

    // Loop through defined attribute data
$attributes[$taxonomy] = array(
    'name'          => $taxonomy,
    'value'         => $option_term_ids, // Need to be term IDs
    'position'      => '1',
    'is_visible'    => '1',
    'is_variation'  => '1',
    'is_taxonomy'   => '1'
);

// Save the meta entry for product attributes
update_post_meta( $product_id, '_product_attributes', $attributes );

This one seems only to add them under Product Attributes Tabs, also does NOT add the Terms Values.

Answer 1

好吧，这是一项相当复杂的任务，但这是我通过查看其他人的源代码并根据需要进行修改而得到的代码。

首先，您需要这些辅助函数。

1. 要创建全局属性，您需要使用以下函数为每个属性(性别、车轮尺寸等)创建一个分类法:

   function create_global_attribute($name, $slug)
   {
   
       $taxonomy_name = wc_attribute_taxonomy_name( $slug );
   
       if (taxonomy_exists($taxonomy_name))
       {
           return wc_attribute_taxonomy_id_by_name($slug);
       }
   
       //logg("Creating a new Taxonomy! `".$taxonomy_name."` with name/label `".$name."` and slug `".$slug.'`');
   
       $attribute_id = wc_create_attribute( array(
           'name'         => $name,
           'slug'         => $slug,
           'type'         => 'select',
           'order_by'     => 'menu_order',
           'has_archives' => false,
       ) );
   
       //Register it as a wordpress taxonomy for just this session. Later on this will be loaded from the woocommerce taxonomy table.
       register_taxonomy(
           $taxonomy_name,
           apply_filters( 'woocommerce_taxonomy_objects_' . $taxonomy_name, array( 'product' ) ),
           apply_filters( 'woocommerce_taxonomy_args_' . $taxonomy_name, array(
               'labels'       => array(
                   'name' => $name,
               ),
               'hierarchical' => true,
               'show_ui'      => false,
               'query_var'    => true,
               'rewrite'      => false,
           ) )
       );
   
       //Clear caches
       delete_transient( 'wc_attribute_taxonomies' );
   
       return $attribute_id;
   }
   

2. 现在要将这些应用于您的产品，我假设您使用的是可变产品，每个产品都有变体？父变量产品需要将其 attribute 属性设置为特殊格式的属性数组。此函数创建该数组，如果找不到每个属性，则为它们创建全局分类法。

   //$rawDataAttributes must be in the form of array("Color"=>array("blue", "red"), "Size"=>array(12,13,14),... etc.)
   function generate_attributes_list_for_product($rawDataAttributes)
   {
       $attributes = array();
   
       $pos = 0;
   
       foreach ($rawDataAttributes as $name => $values)
       {
           if (empty($name) || empty($values)) continue;
   
           if (!is_array($values)) $values = array($values);
   
           $attribute = new WC_Product_Attribute();
           $attribute->set_id( 0 );
           $attribute->set_position($pos);
           $attribute->set_visible( true );
           $attribute->set_variation( true );
   
           $pos++;
   
           //Look for existing attribute:
           $existingTaxes = wc_get_attribute_taxonomies();
   
           //attribute_labels is in the format: array("slug" => "label / name")
           $attribute_labels = wp_list_pluck( $existingTaxes, 'attribute_label', 'attribute_name' );
           $slug = array_search( $name, $attribute_labels, true );
   
           if (!$slug)
           {
               //Not found, so create it:
               $slug = wc_sanitize_taxonomy_name($name);
               $attribute_id = create_global_attribute($name, $slug);
           }
           else
           {
               //Otherwise find it's ID
               //Taxonomies are in the format: array("slug" => 12, "slug" => 14)
               $taxonomies = wp_list_pluck($existingTaxes, 'attribute_id', 'attribute_name');
   
               if (!isset($taxonomies[$slug]))
               {
                   //logg("Could not get wc attribute ID for attribute ".$name. " (slug: ".$slug.") which should have existed!");
                   continue;
               }
   
               $attribute_id = (int)$taxonomies[$slug];
           }
   
           $taxonomy_name = wc_attribute_taxonomy_name($slug);
   
           $attribute->set_id( $attribute_id );
           $attribute->set_name( $taxonomy_name );
           $attribute->set_options($values);
   
           $attributes[] = $attribute;
       }
   
   
       return $attributes;
   }
   

3. 我们几乎已准备好将属性应用于产品，但主要的可变产品及其变体需要像任何 Wordpress 分类法一样为它们分配分类法术语。因此，如果您有一个名为“车轮尺寸”的分类法，其中包含术语“28 英寸”和“30 英寸”，那么父产品需要分配给它的所有术语“28 英寸”和“30 英寸”，以及变体需要为他们分配各自的条款，因此“28 英寸”代表一个，“30 英寸”代表另一个。为了解决这个问题，我们使用这个函数来获取和/或创建这些不存在的术语:

   function get_attribute_term($value, $taxonomy)
   {
       //Look if there is already a term for this attribute?
       $term = get_term_by('name', $value, $taxonomy);
   
       if (!$term)
       {
           //No, create new term.
           $term = wp_insert_term($value, $taxonomy);
           if (is_wp_error($term))
           {
               //logg("Unable to create new attribute term for ".$value." in tax ".$taxonomy."! ".$term->get_error_message());
               return array('id'=>false, 'slug'=>false);
           }
           $termId = $term['term_id'];
           $term_slug = get_term($termId, $taxonomy)->slug; // Get the term slug
       }
       else
       {
           //Yes, grab it's id and slug
           $termId = $term->term_id;
           $term_slug = $term->slug;
       }
   
       return array('id'=>$termId, 'slug'=>$term_slug);
   }
   

好吧，现在我们终于可以使用上面的方法将属性应用于我们的产品。

对于主要可变产品:

$yourRawAttributeList = array("Gender" => array("Woman", "Man"), "Wheel Size" => array("28 Inch","30 Inch","32 Inch"));
$attribs = generate_attributes_list_for_product($yourRawAttributeList);

$p = new WC_Product_Variable($postID);

$p->set_props(array(
    'attributes'        => $attribs,
    //Set any other properties of the product here you want - price, name, etc.
));

$postID = $p->save();

if ($postID <= 0) return "Unable to create / update product!";

//Attribute Terms: These need to be set otherwise the attributes dont show on the admin backend:
foreach ($attribs as $attrib)
{
    /** @var WC_Product_Attribute $attrib */
    $tax = $attrib->get_name();
    $vals = $attrib->get_options();

    $termsToAdd = array();

    if (is_array($vals) && count($vals) > 0)
    {
        foreach ($vals as $val)
        {
            //Get or create the term if it doesnt exist:
            $term = get_attribute_term($val, $tax);

            if ($term['id']) $termsToAdd[] = $term['id'];
        }
    }

    if (count($termsToAdd) > 0)
    {
        wp_set_object_terms($postID, $termsToAdd, $tax, true);
    }
}

对于该产品的每个变体:

    //This is an array of input attributes in the form: array("Color"=>"Navy", "Size"=>"25")
$theseAttributes = array("Gender" => array("Woman"), "Wheel Size" => array("28 Inch"));

//This is the final list of attributes that we are calculating below.
$theseAttributesCalculated = array();

//logg("Want to add these attributes to the variation: ".print_r($theseAttributes, true));

$existingTax = wc_get_attribute_taxonomies();

foreach ($theseAttributes as $name => $value)
{
    if (strlen($name) == 0 || strlen($value) == 0)
    {
        //logg("Attribute array had a blank value for product variant ".$sku.': '.print_r($theseAttributes, true));
        return "Attribute array had a blank value.";
    }

    $tax = '';
    $slug = '';

    //Look for an existing taxonomy to match this attribute's $name
    //$thistax->attribute_name = slug of the taxonomy
    //$thistax->attribute_label = name of the taxonomy

    foreach ($existingTax as $thistax)
    {
        if ($thistax->attribute_label == $name)
        {
            $slug = $thistax->attribute_name;
            $tax = wc_attribute_taxonomy_name($slug);
            break;
        }
    }

    if (empty($tax))
    {
        $slug = wc_sanitize_taxonomy_name($name);
        //Taxonomy not found, so create it...
        if (create_global_attribute($name, $slug) > 0)
        {
            $tax = wc_attribute_taxonomy_name($slug);
        }
        else
        {
            //logg("Unable to create new attribute taxonomy ".$slug." for attribute ".$name."found in variable product ".$sku);
            continue;
        }
    }


    //logg("Want to add attribute ".$name. " value ".$value. " which is term ".$term_slug." (".$termId.") to post ".$parentID);

    $term = get_attribute_term($value, $tax);


    if ($term['id'])
    {
        // Set/save the attribute data in the product variation
        $theseAttributesCalculated[$tax] = $term['slug'];
    }
    else
    {
        //logg("Warning! Unable to create / get the attribute ".$value." in Taxonomy ".$tax);
    }
}

//logg("Finished gathering. Results: ".print_r($theseAttributesCalculated, true));


$variation  = new \WC_Product_Variation($postID);

$variation->set_props( array(
    'attributes'        => $theseAttributesCalculated,
));

$postID = $variation->save();

if ($postID <= 0) return "Unable to create product variation!";