Filters? Anyone? There’s no filter there to help: page_template_dropdown($template); is used to build the drop down and it’s not filterable. Sneaking into the Templates Array? To build the drop downs contents, the core meta box uses get_page_templates(). From inside, the function looks like the following: $themes = get_themes(); $theme = get_current_theme(); $templates = $themes[$theme][‘Template Files’]; … Read more
I would use the is_page_template() conditional: if ( is_page_template( ‘page-courses.php’ ) ) { // The current page uses your // custom page template; // do something } Edit You would use this conditional inside your filter callback: function wpse83525_filter_the_title( $title ) { if ( is_page_template( ‘page-courses.php’ ) ) { return ‘Custom Title’; } return $title; … Read more
It would be nice if WordPress had a standards based cache directory, but since it doesn’t I think the best option is to keep it in the plugin folder itself. Uploads are in my opinion for actual uploads and cache files are not really considered as such. I think it easier to manage , reduces … Read more
For testing purposes you can use the log system (php_error.log): error_log(‘Plugin activated’, 0); // Check for DB table existance if(!$this->hasDBTable()){ error_log(‘Database not present’, 0); if($this->createCELabelsDBTables()){ error_log(‘Database was created.’, 0); } else { error_log(‘Error creating the CE Labels Plugin db tables!’, 0); } } else { error_log(‘Database OK’, 0); } To output error to the user … Read more
global $wpdb; $image_src = wp_upload_dir()[‘baseurl’] . “https://wordpress.stackexchange.com/” . _wp_relative_upload_path( $filename ); $query = “SELECT COUNT(*) FROM {$wpdb->posts} WHERE guid=’$image_src'”; $count = intval($wpdb->get_var($query)); You can use this at the top of your code. Then check the value of $count. If it’s 0, then you can continue adding the attachment
You can use the theme_page_templates filter to add templates to the dropdown list of page templates like this: function wpse255804_add_page_template ($templates) { $templates[‘my-custom-template.php’] = ‘My Template’; return $templates; } add_filter (‘theme_page_templates’, ‘wpse255804_add_page_template’); Now WP will be searching for my-custom-template.php in the theme directory, so you will have to redirect that to your plugin directory by … Read more
More than an Answer, this is a research and a compilation. Database Description already in Damien answer. A Google search reveals this in WordPress forums: UML documentation of WordPress As far as I know, that’s all we have. If you want to write one, I’m sure it’d be welcomed 🙂 (Ipstenu, referring to the Database … Read more
Given that all of the libraries you need for the datepicker are bundled with WordPress and are registered with all of the appropriate dependencies, all you really need to do is: function enqueue_my_scripts_wpse_97533() { wp_enqueue_script(‘jquery-ui-datepicker’); } add_action(‘wp_enqueue_scripts’,’enqueue_my_scripts_wpse_97533′); If you then look at the source of the page you will see that jQuery, jQuery-UI, and jQuery-UI-Datepicker … Read more
The wp_capabilities saves the value as serilized array, you can try it in your php or for this example here: http://blog.tanist.co.uk/files/unserialize/. The Code: a:1:{s:13:”administrator”;b:1;} Is: Array ( [administrator] => 1 ) Meaning the user is an administrator. You can add new roles to the database by running the function add_role, and only run it once!
The file wp-admin/includes/plugin.php is not always included. You may have to do this in your plugin. And your Location header is invalid: You have to send a complete URL. You should use: require_once( ABSPATH . ‘wp-admin/includes/plugin.php’ ); When do you call this function? Maybe too early.