using media_sideload_image with a file from theme directory

Question

using media_sideload_image with a file from theme directory

LocNguyen

2022年5月18日 04:03

I'm building a Wordpress site in which an admin can upload a video file from post metabox.

After that post is saved and the video file is attached to the post, I used ffmpeg to get the screenshot at the first second of video, then save this screenshot as a JPG file in 'tmp' directory in theme directory.

Finally, I want to programmatically make this screenshot as post featured image. I use media_sideload_image function, which generally be used to get image from another server and set that image as post featured image and I think this function could be used in this case also.

In my case, the video screenshot was successfully saved to 'tmp' directory in my theme dir, but the media_sideload_image part did not return anything for further process. Here's my function:

function create_video_featured_image($post_id, $image_uri) {

// $image_uri = 'http://localhost/demo-site/wp-content/themes/mytheme/tmp/video_thumb_952.jpg';
$media = media_sideload_image($image_uri, $post_id);

if(!empty($media)  !is_wp_error($media)){
    $args = array(
        'post_type' = 'attachment',
        'posts_per_page' = -1,
        'post_status' = 'any',
        'post_parent' = $post_id
    );

    // reference new image to set as featured
    $attachments = get_posts($args);

    if(isset($attachments)  is_array($attachments)){
        foreach($attachments as $attachment){
            // grab source of full size images (so no 300x150 nonsense in path)
            $image = wp_get_attachment_image_src($attachment-ID, 'full');
            // determine if in the $media image we created, the string of the URL exists
            if(strpos($media, $image[0]) !== false){
                // if so, we found our image. set it as thumbnail
                set_post_thumbnail($post_id, $attachment-ID);
                // only want one image
                break;
            }
        }
    }
}
}

Am I missing anything or is there another way to work around in this case ?

Thank you very much !

Topic uploads images Wordpress

Category Web

Marcello Curto · Accepted Answer · 2020年8月9日 09:37

You don't need to loop over all the attachments, since the media_sideload_image function returns the attachment ID if you pass 'id' as the fourth argument.

Then it could be simplified to something like this:

function create_video_featured_image($post_id, $image_uri) {    
$image_uri = 'http://localhost/demo-site/wp-content/themes/mytheme/tmp/video_thumb_952.jpg';
$media_id = media_sideload_image($image_uri, $post_id, null, 'id');
set_post_thumbnail($post_id, $media_id);
}

Domain · Accepted Answer · 2015年4月4日 10:59

Please include the following files before using media_sideload_image() for it to work,

require_once(ABSPATH . 'wp-admin/includes/media.php');
require_once(ABSPATH . 'wp-admin/includes/file.php');
require_once(ABSPATH . 'wp-admin/includes/image.php');

Reference, WP Codex: media_sideload_image

using media_sideload_image with a file from theme directory

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