php 如何使用wordpress上的update_field在ACF上上传图像

how to upload an image on ACF with update_field on wordpress

提问by Lee Proctor

I have a form, which has an upload ($_FILES['watch_photo']) field.

我有一个表单，其中有一个上传 ( $_FILES['watch_photo']) 字段。

I have looked around and came to put this function together.

我环顾四周，想把这个功能放在一起。

It basically takes all relevant information so it is re-usable in the future, it will return an array of the $pid, and URL of the file, when it is done.

它基本上获取所有相关信息，以便将来可以重用，完成后它将返回 $pid 和文件 URL 的数组。

The problem is that ACF has not provided much information how to add images to it's fields using update_field()http://www.advancedcustomfields.com/resources/functions/update_field/

问题是 ACF 没有提供太多信息如何使用http://www.advancedcustomfields.com/resources/functions/update_field/向其字段添加图像update_field()

function my_update_attachment($f,$pid,$t='',$c='') {
  wp_update_attachment_metadata( $pid, $f );
  if( !empty( $_FILES[$f]['name'] )) { //New upload
    require_once( ABSPATH . 'wp-admin/includes/file.php' );

    $override['action'] = 'editpost';
    $file = wp_handle_upload( $_FILES[$f], $override );

    if ( isset( $file['error'] )) {
      return new WP_Error( 'upload_error', $file['error'] );
    }

    $file_type = wp_check_filetype($_FILES[$f]['name'], array(
      'jpg|jpeg' => 'image/jpeg',
      'gif' => 'image/gif',
      'png' => 'image/png',
    ));
    if ($file_type['type']) {
      $name_parts = pathinfo( $file['file'] );
      $name = $file['filename'];
      $type = $file['type'];
      $title = $t ? $t : $name;
      $content = $c;

      $attachment = array(
        'post_title' => $title,
        'post_type' => 'attachment',
        'post_content' => $content,
        'post_parent' => $pid,
        'post_mime_type' => $type,
        'guid' => $file['url'],
      );

      foreach( get_intermediate_image_sizes() as $s ) {
        $sizes[$s] = array( 'width' => '', 'height' => '', 'crop' => true );
        $sizes[$s]['width'] = get_option( "{$s}_size_w" ); // For default sizes set in options
        $sizes[$s]['height'] = get_option( "{$s}_size_h" ); // For default sizes set in options
        $sizes[$s]['crop'] = get_option( "{$s}_crop" ); // For default sizes set in options
      }

      $sizes = apply_filters( 'intermediate_image_sizes_advanced', $sizes );

      foreach( $sizes as $size => $size_data ) {
        $resized = image_make_intermediate_size( $file['file'], $size_data['width'], $size_data['height'], $size_data['crop'] );
        if ( $resized )
          $metadata['sizes'][$size] = $resized;
      }

      $attach_id = wp_insert_attachment( $attachment, $file['file'] /*, $pid - for post_thumbnails*/);

      if ( !is_wp_error( $id )) {
        $attach_meta = wp_generate_attachment_metadata( $attach_id, $file['file'] );
        wp_update_attachment_metadata( $attach_id, $attach_meta );
      }

      return array(
        'pid' =>$pid,
        'url' =>$file['url']
      );
      // update_post_meta( $pid, 'a_image', $file['url'] );
    }
  }
}

and then I used the following code:

然后我使用了以下代码：

• to create a post and then
• upload then use my_update_attachmentto process the image
• and finally update the advanced custom field

• 创建一个帖子，然后
• 上传然后用于my_update_attachment处理图像
• 最后更新高级自定义字段

The code:

编码：

$args= array(   'post_type' => 'watches',       'post_status' => 'publish'    );

$watch = wp_insert_post($args);
$att = my_update_attachment('watch_image',$watch);
update_field('field_512e085a9372a',$att['url'],$watch);

What am I missing? any help would be greatly appreciated.

我错过了什么？任何帮助将不胜感激。

回答by Val

I had the same problem, you almost had it right, which helped me as well.

我遇到了同样的问题，你几乎做对了，这也帮助了我。

looked at ACF and the update_fieldaccepts attachment ID as oppose to the the, pidor url

查看 ACF 并update_field接受附件 ID 作为反对，pid或url

You can replace the return array:

您可以替换返回数组：

return array(
    'pid' =>$pid,
    'url' =>$file['url']
);

With the following array:

使用以下数组：

return array(
  'pid' =>$pid,
  'url' =>$file['url'],
  'file'=>$file,
  'attach_id'=>$attach_id
);

and then change

然后改变

update_field('field_512e085a9372a',$att['url'],$watch);

with the following

与以下

update_field('field_512e085a9372a',$att['attach_id'],$watch);

回答by user3719894

Check this plugin:

检查这个插件：

https://wordpress.org/plugins/acf-frontend-display/

https://wordpress.org/plugins/acf-frontend-display/

1. Create ACF form with frontendUploader field (plugin extention)
2. Add your ACF form into post and with post admin panel use checkbox to view on front

1. 使用 frontendUploader 字段创建 ACF 表单（插件扩展）
2. 将您的 ACF 表单添加到帖子中，并在帖子管理面板中使用复选框在前面查看