set-post-thumbnail wp-ajax返回0 [英] set-post-thumbnail wp-ajax return 0

问题描述

我尝试使用wordpress的媒体管理器，我在admin wordpress之外使用帖子编辑器，用户可以创建带有特色图片的帖子. 我使用_wp_post_thumbnail_html函数显示图像或显示要上传文件的链接，所有拥有角色发布者"的用户都可以上传图像并上传工作，但是不起作用显示特色图像或分配给帖子.

i try use the media manager from wordpress i use the post editor outside admin wordpress and users can create a posts whit a featured image. I use _wp_post_thumbnail_html function to show image or show link to upload file, all users whit a rol "publisher" can upload images and upload work but doesn't work show featured image or assign to post.

关于wp-ajax的操作:set-post-thumbnail返回0，并且未将图像分配给新帖子. wp-ajax.php:

on wp-ajax whit action: set-post-thumbnail returns 0 and image aren't assign to new post. wp-ajax.php:

json:true thumbnail_id:3952 _wpnonce:b02e8553f1操作:设置后缩略图

json:true thumbnail_id:3952 _wpnonce:b02e8553f1 action:set-post-thumbnail

响应:0

我的代码为:

<?php $thumbnail_id = get_post_meta( $post_id, '_thumbnail_id', true );
                        //$postid =  get_post( $post_id );
                        echo _wp_post_thumbnail_html( $thumbnail_id, $post_id );
                    ?>
                    <br>

非常简单，显示来自wordpres的媒体管理器，允许上传特色图片，但不允许分配给新帖子.有解决办法吗?

Very simple, show the media manager from wordpres, allow upload featured image but not allow assign to new post. Any solution?

edit:在编辑帖子中效果很好，允许更改我想的特色图片，因为特色图片需要帖子ID，但是在wordpress的新帖子中，允许上传图片并将其分配给新帖子.

edit: in edit post works fine allow change featured image i suppose because featured image required a post id, but on new post from wordpress allow upload image and asign this to new post.

推荐答案

这是正确的图像上传代码.

This is proper image-uploading code.

<?php
global $wpdb;
include ('../../../../wp-load.php');
if ( $_FILES ) {

    if(!function_exists('wp_handle_upload')){
        require_once(ABSPATH . 'wp-admin/includes/file.php');
        require_once(ABSPATH . "wp-admin" . '/includes/image.php');
        require_once(ABSPATH . "wp-admin" . '/includes/file.php');
        require_once(ABSPATH . "wp-admin" . '/includes/media.php');
    }



    $upload_overrides = array('test_form' => false);

    $response = array();
    ini_set('max_execution_time', 0);
    foreach($_FILES as $file){

        $movefile_profile = wp_handle_upload($file, $upload_overrides);
        $filename = $movefile_profile['url'];
        $parent_post_id = $post_id; // please provide post id must
        $filetype = wp_check_filetype( basename( $filename ), null );
        $wp_upload_dir = wp_upload_dir();
        $attachment = array(
            'guid'           => $wp_upload_dir['url'] . '/' . basename( $filename ), 
            'post_mime_type' => $filetype['type'],
            'post_title'     => preg_replace( '/\.[^.]+$/', '', basename( $filename ) ),
            'post_content'   => '',
            'post_status'    => 'inherit'
        );

        $attach_id = wp_insert_attachment( $attachment, $filename, $parent_post_id );
        $filepath = $wp_upload_dir['path'] . '/' . basename( $filename );
        $attach_data = wp_generate_attachment_metadata( $attach_id, $filepath );
        wp_update_attachment_metadata( $attach_id, $attach_data );
        set_post_thumbnail($post_id, $attach_id); // this set_post_thumbnail will set you post thumbnail
        $response['message'] = 'Done';
    }

    echo json_encode($response);
    die();

}

有关Ajax代码，请访问以下链接.如果您有任何问题，请在下面评论.

And for Ajax code, go to this link. If you any problems, then please comment below.

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