__( ‘Remove Track’ ) is a translatable string. __(), _e(), _x(), … all of them are gettext functions used by WordPress for language localization. It is missing the second parameter (optional), which is the textdomain, usually it should be: __( ‘Remove Track’, ‘your-plugin-text-domain’ ) In that way, the string can be translated by your plugin … Read more
The bad news WP doesn’t track this information persistently. It only keeps the technical representation of active plugins to load them. The rest is only looked up in specific contexts (such as plugin management admin panel), because it’s relatively heavy on resources. The good news is that you can certainly rebuild this functionality in arbitrary … Read more
Go with your last idea – generate a URL like so: $raw_url = admin_url( ‘admin.php?page=add-edit-record&edit-id=’ . $id ); $esc_url = esc_url( $raw_url ); // For href attributes and the like And then in your handler for add-edit-record: if ( ! empty( $_GET[‘edit-id’] ) && $id = absint( $_GET[‘edit-id’] ) ) { if ( ! $record … Read more
You can create custom templates in WordPress defining the template name at the top of the template. This is a basic template that should help you get started. You can save your template with a file name like tmp-mycustomname.php and put it in your theme. You probably should create a child theme where you can … Read more
You should prefer the uninstall hook over the file if your main plugin doesn’t have side effects (outputs html or writes to file/DB automatically when loaded). IMO there is too much risk (i.e. non zero) of doing the uninstall.php code wrong and open the file to direct execution from the outside. This also help in … Read more
Is there a reliable up-to-date way to find media that resides on the server but is not used in the WP site? In short: no, not as far as I’m aware. I have found a number of plugins, but all are very old, with lots of negative comments to the effect that they do not … Read more
wp_update_post The ID of the post if the post is successfully updated in the database. Otherwise returns 0. So just test again that. if ( $post_id != 0 ) { // success! write_here_show_success_messages(); } Or you can use an action. <?php /** use action for success message **/ if ( $post_id != 0 ) { … Read more
If you plan on submitting the plugin to the WordPress Repository then it is not technically required but by submitting it you automatically agree that the entire plugin is “considered GPLv2 or later.” – The Plugin Handbook says this in regards to Plugins added to the Repository 1) Your plugin must be compatible with the … Read more
You can just instantiate an object from class CustomPlugin like $obj = new CustomPlugin(‘id’,’name’,’desc’); in CustomPluginTemplate.php and call any method from the class within the CustomPluginTemplate.php file as $obj->query_vars(); Before instantiating make sure you class is included.
You may need to have this line in your code require_once( ABSPATH . ‘wp-admin/includes/plugin.php’ ); The plugin.php file is not automatically included.