WordPress从服务器导入大量图像并与帖子关联

Question

我想知道是否有可能加快我为wordpress网站创建的现有导入过程？我需要从外部xml文件导入数据,根据该数据创建产品,然后下载图像并将它们分配给创建的产品.问题是还需要通过wp函数生成缩略图并将其与产品相关联.我目前设法每秒插入1到2个图像,使用cron作业每5分钟调用一次脚本,导入限制为120个图像.对于120个图像的块,这相当于大约80到150秒.Tre问题是我需要导入大约10000个产品和200000张图像.

在tmp文件夹中每次约1000张图像

我使用的当前功能是:

function upload_image(){
    ini_set("memory_limit","2048M");
    add_filter('intermediate_image_sizes', function ($image_sizes){
        return array('thumbnail');
    },1000 );
    if($this->ids===false) {
        self::get_all_ids();
    }
    $upload_dir = wp_upload_dir();
    $root = $upload_dir['basedir'].DIRECTORY_SEPARATOR.'tmp'.DIRECTORY_SEPARATOR;
    $handle = opendir($root);
    $files=array();
    $propertys=array();
    $propertys_images=array();
    while (false !== ($entry = readdir($handle))) {
        if ($entry != "." && $entry != "..") {
            $tmp_data=explode('_',$entry);
            if(isset($tmp_data[1])) {
                $post_id = isset($this->ids[$tmp_data[1]]) ? $this->ids[$tmp_data[1]] : 0;
                if (!empty($post_id)) {
                    $propertys[$post_id] = $post_id;
                    $files[] = array('url' => $root . $entry, 'post_id' => $post_id, 'name' => $entry);
                }else{
                    unlink( $root . $entry);
                }
            }else{
                unlink( $root . $entry);
            }
        }
    }


    if (empty($propertys)){return'';}
    global $wpdb;
    $results = $wpdb->get_results("
        SELECT ID,post_parent, post_title
        FROM $wpdb->posts AS posts
        WHERE  post_type = 'attachment'
        AND post_parent IN(".implode(',',$propertys).")
        Order by ID asc

     ",ARRAY_A ) ;
    $set_images=array();
    foreach ($results as $r){
        $set_images[]=$r['post_title'];
        $propertys_images[$r['post_parent']][$r['ID']]=$r['ID'];
    }
    foreach ($files as $k => $d){
        if(in_array($d['name'],$set_images)){
            unset($files[$k]);
            unlink($d['url']);
        }
    }

    require_once( ABSPATH . 'wp-admin/includes/image.php' );
    foreach ($files as $id_of_i => $f){
        if($id_of_i > 120){continue;}
        $image_url = $f['name'];
        $post_id=$f['post_id'];

        $base_path=$upload_dir['basedir'].DIRECTORY_SEPARATOR.'tmp' .DIRECTORY_SEPARATOR.$image_url;

        $filename = basename( $image_url );

        if ( wp_mkdir_p( $upload_dir['path'] ) ) {
            $file = $upload_dir['path'] . '/' . $filename;
        }
        else {
            $file = $upload_dir['basedir'] . '/' . $filename;
        }

        if(file_exists($base_path)) {
            rename($base_path, $file);
            //copy($base_path, $file);
        }


        $wp_filetype = wp_check_filetype( $filename, null );

        $attachment = array(
            'post_mime_type' => $wp_filetype['type'],
            'post_title' => sanitize_file_name( $filename ),
            'post_parent' => $post_id,
            'post_content' => '',
            'post_status' => 'inherit'
        );

        $attach_id = wp_insert_attachment( $attachment, $file );
        $propertys_images[$post_id][$attach_id]=$attach_id;
        $attach_data = wp_generate_attachment_metadata( $attach_id, $file );
        wp_update_attachment_metadata( $attach_id, $attach_data );
    }
    foreach ($propertys_images as $prop_id => $images){
        $images_ids=array_values($images);
        set_post_thumbnail($prop_id, $images_ids[0]);
        update_post_meta($prop_id, '_thumbnail_id', $images_ids[0]);
        update_post_meta($prop_id, 'fave_prop_slider_image', $images_ids[0]);
        $num=get_post_meta($prop_id,'numb_of_images',true);
        delete_post_meta($prop_id,'fave_property_images');
        foreach ($images_ids as $k =>$id){
            if($k!='0'){
                add_post_meta($prop_id, 'fave_property_images', $id);
            }
        }

        if($num<=count($images_ids)){
            update_post_meta($prop_id, 'all_images_imp', 'true');
        }
    }
   exit();

}

首先我设置为仅生成此图像的缩略图,然后我收集所有product_codes("get_all_ids()")然后我从tmp文件夹中获取所有图像并检查该img的产品是否存在,然后获取我的图像的产品的所有附件然后我将图像迁移到wp上传路径

然后调用"wp_insert_attachment"添加基本图像,然后使用"wp_generate_attachment_metadata"生成缩略图,然后使用"wp_update_attachment_metadata"附加到附件的信息

收到的附件ID我添加到产品和产品库中

我认为在这个脚本中,减速部分生成缩略图是否有可能加快此过程,或者如果您有任何建议

使用当前速度,大约需要5到10天才能添加所有图像

先感谢您

Answer 1

问题是 EWWW 图像优化器，因此您需要注意插件之间是否有某种类型的优化器处于活动状态。当我禁用插件（断开钩子）时，插入图像的速度会增加战利品