You can use image_downsize filter and to catch when WordPress wants a downscaled image and not original, and actually a size what doesn’t exist. add_filter( ‘image_downsize’, ‘wpse_60890_retina_scale’, 10, 3 ); function wpse_60890_retina_scale( $value, $id, $size ) { if ( $size == ‘wpse_60890_retina_scaled’ ) { if ( !is_array( $imagedata = wp_get_attachment_metadata( $id ) ) ) return … Read more
You want to use this plugin Enable Media Replace Simply install it then you will be able to replace media items with new ones. It will also give you the option to keep the existing file name or update all links with the new filename.
So, I followed your links and this is working for me. This test works the same for my upload callbacks so hopefully it works for you. In the iframe function myTab_save_frame() { global $redir_tab; $redir_tab = ‘mytab’; media_upload_header(); ?> <button>Test Trigger</button> <script> var switchAndReload = function() { // get wp outside iframe var wp = … Read more
I did some debugging and was able to reproduce and solve the issue, but unfortunately I was not able to figure out the specific cause. Generally speaking, it seems that .vtt files are failing the check performed by wp_check_filetype_and_ext(). I was able to upload .vtt files (Only tested on WP 5.0.1) after creating a simple … Read more
Here is something i cooked up which was taken mainly from the plugin Overwrite Uploads but without the extra stuff add_filter(‘wp_handle_upload_overrides’,’noneUniqueFilename’); function noneUniqueFilename($overrides){ $overrides[‘test_form’] = false; $overrides[‘unique_filename_callback’] = ‘nonUniqueFilenameCallback’; return $overrides; } function nonUniqueFilenameCallback($directory, $name, $extension){ $filename = $name . strtolower($extension); //remove old attachment removeOldAttach($filename); return $filename; } function removeOldAttach($filename){ $arguments = array( ‘numberposts’ => … Read more
When I started using media_sideload_image(), I found it pretty useless as it returned a full html tag, instead of the attachment ID, so I created my own version of it which replicates all the functionality of media_sideload_image() and adds some very useful stuff, like: saving the sideloaded file under a completely new filename making the … Read more
In theory: Move images from blogs.dir/SITENUM/files/ to /uploads/SITENUM/ (or make an alias) Edit all sites so they don’t look in /files/ but in /uploads/SITENUM/ .htaccess, remove the ms-files.php line Search/replace each posts table for each site, changing /files/ to /uploads/SITENUM/ A walk-through can be found here (dumping ms-files), this is not a trivial hack! It … Read more
It is setup in multi-blog mode (if that matters) That will matter a lot. you probably need to ask the super admin to change the upload setting for your site https://codex.wordpress.org/Network_Admin_Settings_Screen#Upload_Settings
I’m not really sure which is the real problem with code you posted, however I cant understand why use 2 functions when one is enough… add_filter( ‘wp_handle_upload_prefilter’, ‘limit_uploads_for_user_roles’ ); function limit_uploads_for_user_roles( $file ) { $user = wp_get_current_user(); // add the role you want to limit in the array $limit_roles = array(‘contributor’); $filtered = apply_filters( ‘limit_uploads_for_roles’, … Read more
Generally speaking, I would take the approach of querying for post attachments, but withhold the attachment that is the post thumbnail. WP provides a simple way of finding the post thumbnail ID with get_post_thumbnail_id (Codex Ref). To modify the code from the other post, I would add the following parameter to the $args array to … Read more