I finally figured this out. What I had above is correct, as far as it goes. But the missing piece was changing the query based on that. So in addition, I needed to add the following code: add_filter( ‘parse_query’,’norelated_filter’ ); function norelated_filter( $query ) { if( is_admin() AND $query->query[‘post_type’] == ‘my-cpt’ ) { if ($_GET[‘norelated’]) … Read more
As the filter occurs within a class you must remove it by replacing $this (as you don’t run the remove_filter on the class, $this is not available) with the name of the class where it is declared. An example with a class called : Wecba, you will remove it like this : remove_filter(‘the_content’, array(‘Wecba’, ‘add_Content_Ads’), … Read more
The way WordPress handles this by default is not ideal – they provide the WP_Query object – through that, you can add whatever filters you like but there’s no easy way I know of to create adaptive filters. That’s one of the reasons I created my Faster Woo Widgets plugin – it does exactly what … Read more
Contact Form 7: Make field required after checkbox is checked
Wrong post_status notice after wp_insert_post_data
Using add_filter will automatically pass $errors to your callback function: add_filter(‘form_errors’, ‘return_errors’); function return_errors($errors) { // validate $errors based on form conditions return $errors; } If the filter has more than one variable passed you can access that extra information by adding a filter priority and specifying the number of arguments to pass to the … Read more
Have you looked at https://codex.wordpress.org/Configuring_Automatic_Background_Updates for help? Several options in there to enable/disable updates according to your needs?
Allow me to purpose an alternative. Instead of setting the excerpt’s length for all the posts, let’s just trim it for individual posts. Shall we? For this very purpose, we can use get_the_excerpt filter. If you look at the corresponding page about this filter, you notice that the code example is using is_attachment(), which means … Read more
As every theme is different you can’t really expect a plugin to know where to put the slideshow in. As you say the best place would be the content filter if that’s where you want it. If you want it anywhere else you could inject it after using jquery?
Better extend a class or use add filter/action hooks?