media

Is wp_read_audio_metadata() function deprecated?

wp_read_audio_metadata() is not deprecated. It’s located in /wp-admin/includes/media.php, which is not loaded on the front end, hence the error your’re getting. You are using the function correctly. You can make wp_read_audio_metadata() available by including wp-admin/includes/media.php before calling the function, e.g.: require_once( ABSPATH . ‘wp-admin/includes/media.php’ ); $audio_file_path = get_attached_file( 1821 ); // example attachment ID var_dump( … Read more

Resizing all images

I asked a similar but broader question, and I still need to research and write a complete answer. In the meantime here are some pointers that might help you: I wrote a set of plugins that resizes all images to the size used in the editor. It works by converting <img src=”https://wordpress.stackexchange.com/questions/4984/image.jpg” width=”200″ height=”400″/> to … Read more

How to call WP3.5 Media Library manager?

From the article How to use WordPress 3.5 Media Uploader in Theme Options (by codestag.com), as seen in Using the WordPress 3.5 Media Uploader within plugins (by mikejolley.com). Mike Jolley’s article has quite some nice tricks. Important note: if the page where the uploader is going to be used doesn’t already have all media JS … Read more

Is it possible to trigger some JavaScript when Media Popup is opened?

You can use several event handlers. frame.on(‘open’,function() { // Do something }); frame.on(‘close’,function() { // Do something }); frame.on(‘select’,function() { // Do something }); Where frame is a reference to wp.media() frame = wp.media(); frame.on(‘select’,function() { // Do something }); Full example Script en-queued with jQuery and media editor as dependencies. function media_script_enqueue() { wp_enqueue_script( … Read more

How do I detach images from posts?

If you view the Media Library in the list mode: /wp-admin/upload.php?mode=list then you will see the Attach/Detach links for each attachment. Each attachment can only be attached to a single parent through the post_parent field in the wp_posst table. Deleting an image from the post editor will not change the post_parent field to 0. Making … Read more

How do I link directly to uploaded files?

If I upload the file to WordPress’ upload directory through FTP, I don’t see the file show up in my media (in WP-admin) Try to avoid directly uploading via FTP. WordPress doesn’t scan your uploads folder for new images. Instead, use the built-in media uploader within WordPress to upload images. WordPress will automatically place them … Read more

Is there a user-facing interface to edit an attachment’s permalink?

This’ll add a slug field to the edit attachment page, which’ll allow you to independently change it when and how you choose to. Drop it into a plugin or your theme’s functions.php; function wpse_12405_edit_attachment_name( $fields, $post ) { $fields[‘post_name’] = array( ‘label’ => __( ‘Slug’ ), ‘value’ => $post->post_name, ); return $fields; } add_filter( ‘attachment_fields_to_edit’, … Read more

get_attached_media() returns empty array if media file already used by another post

I ran into this problem and ended up creating a basic function to extract the “attached” media by URL from the body of the post (in my case a post of type document, but it should work with any kind of post): function get_first_link_url($post_id) { $content = get_post_field(‘post_content’, $post_id); if ($content == null) { return … Read more

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