Note the stricter mime type check since WP 5.0.1 where the file content and file extension must match. See e.g. this recent question on the vtt file type. Secondary mime type for a given file extension Here’s a suggestion how to support a secondary mime type for a given file extension. Let’s take .vtt as … Read more
I found the problem. In settings > media the folder for uploads was actually pointing to a different path. Once I redirected it to wp-content/uploads it all worked.
Here is the working code (working fine for me), did you tried this? Just add to theme ‘functions.php’ and change the custom field names as needed. //function to add custom media field function custom_media_add_media_custom_field( $form_fields, $post ) { $field_value = get_post_meta( $post->ID, ‘custom_media_style’, true ); $form_fields[‘custom_media_style’] = array( ‘value’ => $field_value ? $field_value : ”, … Read more
Assuming that you’re providing upload functionality via WordPress’ native functions, lik wp_handle_upload or something more high-level, we come to the conclusion that several hooks are going to be pulled. http://core.trac.wordpress.org/browser/tags/3.3/wp-admin/includes/file.php#L212 The wp_handle_upload function would probably be the last native function to touch the file, and would know all the information that is necessary to keep … Read more
It’s necessary to use the wp_check_filetype_and_ext filter to set the mime type and extension for webp files in addition to using the upload_mimes filter to add the mime type to the list of uploadable mimes. /** * Sets the extension and mime type for .webp files. * * @param array $wp_check_filetype_and_ext File data array containing … Read more
Uploading files in ajax is a bit tricky because it is not possible to upload files using the browser’s XMLHttpRequest object so you need to use some kind of Ajax upload plugin and the easiest one would be the the JQuery Form Plugin which makes things much easier and it’s included in WordPress. So to … Read more
Assuming that you are using the WordPress native Media uploader then you can use the upload_mimes filter hook to add or remove allowed file types, for example: function custom_myme_types($mime_types){ //Adding avi extension $mime_types[‘avi’] = ‘video/avi’; //Removing the pdf extension unset($mime_types[‘pdf’]); return $mime_types; } add_filter(‘upload_mimes’, ‘custom_myme_types’, 1, 1); You can see that to add a file … Read more
From this post at wordpress.org/support, the user Chrystl points out: If don’t need to translate your media titles, uncheck this option: In Languages > Settings tab > Media: “Activate languages and translations for media”. And you will access to your entire library by clicking on “Add media” and “Set featured image”. And that indeed did … Read more
I don’t think there is. You will have to use some local (browser-based) Javascript code to attach a function to the on-click event of the button. (Not a Javascript expert, but perhaps this will point you in a direction of investigation.)
In your handler, if you set ‘error’, the error message will be displayed and will cancel the upload add_filter( ‘wp_handle_upload_prefilter’, ‘custom_upload_filter’ ); function custom_upload_filter( $file ) { $image_info = getimagesize( $file[‘tmp_name’] ); $image_width = $image_info[0]; $image_height = $image_info[1]; if ( $image_with !== 800 || $image_height !== 600 ) { $file[‘error’] = __( ‘Images must be … Read more