Question

如何在WooCommerce中为产品分配多个图像？

我试过了：

update_post_meta( $post_id, '_product_image_gallery', $image_id);

但它只分配一个图像。当我使用数组时，它不起作用：

update_post_meta( $post_id, '_product_image_gallery', array($image_id,$image_id2));

Answer 1

如果您需要将多个图像分配给产品，则需要将一个图像指定为特色图像/缩略图，然后将其余图像指定为产品库缩略图。

以下是一个可以为您实现此目的的快速功能：

function so_upload_all_images_to_product($product_id, $image_id_array) {
    //take the first image in the array and set that as the featured image
    set_post_thumbnail($product_id, $image_id_array[0]);

    //if there is more than 1 image - add the rest to product gallery
    if(sizeof($image_id_array) > 1) { 
        array_shift($image_id_array); //removes first item of the array (because it's been set as the featured image already)
        update_post_meta($product_id, '_product_image_gallery', implode(',',$image_id_array)); //set the images id's left over after the array shift as the gallery images
    }
}

假设您有一个图像ID数组，以及要将图像附加到的产品的ID，您可以像这样调用上面的函数：

$images = array(542, 547, 600, 605); //array of image id's
so_upload_all_images_to_product($product_id, $images);

如果您正在处理大量产品图片，或者您对微优化非常认真，则可以使用array_reverse和array_pop代替array_shift的组合。

Answer 2

试试这样：

update_post_meta( $post_id, '_product_image_gallery', $image_id.",". $image_id2);

完成示例：

$images_ids = array();
$images_meta = "";
    foreach ($images_ids as $im_id) {
      if (is_null(get_post_meta($post_id,"_product_image_gallery")))
        add_post_meta($post_id,"_product_image_gallery",$im_id);
      else {
        $images_meta = get_post_meta($post_id,"_product_image_gallery",true);             
       update_post_meta($post_id,"_product_image_gallery",$images_meta.",".$im_id);
    }

Answer 3

这里是这份工作的小包装。它仅接受一个附件，并将其添加为基本图像，或者如果产品已经具有基本图像，则将其添加到图库。

/**
 * @param $product WC_Product|WP_Post
 * @param $attachmentId int
 */
function setOrAddImageToProduct($product, $attachmentId)
{
    if(!has_post_thumbnail($product->ID)) {
        set_post_thumbnail( $product, $attachmentId );
    } else {
        $gallery = get_post_meta($product->ID, '_product_image_gallery');
        if(!empty($gallery)) {
            $galleryItems = explode(",", $gallery);
            $galleryItems[] = $attachmentId;
        } else {
            $galleryItems = [$attachmentId];
        }
        update_post_meta($product->ID, '_product_image_gallery', join(',', $galleryItems));
    }

    //Adds connection to the product for the media view
    $attachment = get_post( $attachmentId );
    $attachment->post_parent = $product->ID;
    wp_update_post( $attachment );
}

将多个图像添加到WooCommerce产品

3 个答案: