How does one delete orphan custom post type?
DELETE a,b,c FROM wp_posts a LEFT JOIN wp_term_relationships b ON (a.ID=b.object_id) LEFT JOIN wp_postmeta c ON (a.ID=c.post_id) WHERE a.post_type=”customposttype”
customization
Get custom post type by category in a page template
This is a version of a function I’m using in the framework I’m working on, with example html replacing another function that contains something like it. // Custom Loop function arrr_custom_loop( $r_type=”post”, $r_post_num, $r_tax = ‘category’, $r_terms=”featured” ) { $args = array( ‘showposts’ => $r_post_num, ‘tax_query’ => array( array( ‘post_type’ => $r_type, ‘taxonomy’ => $r_tax, … Read more
Which to use to execute code during the saving of a plugin settings page?
If you’re using Settings API, then you should use a sanitize callback: register_setting( $option_group, $option_name, $sanitize_callback ); The myth is that the $sanitize_callback actually is a filter for your options when it’s saved in the database. This is the place where you can do something with your custom code. This is the sample code: register_setting( … Read more
WordPress plugin to publish to multiple remote WordPress blogs
Is there any plugin I can use for this task? No. But there is a tool you can use. A colleague of mine was facing an identical situation. Multiple authors on one site wanted to cross post from the central, multi-author blog onto their own blogs. The solution was for them to use an external … Read more
Hyphens vs. periods in the script slug in wp_register_script?
Use hyphens only. Take a look at wp-includes/script-loader.php: $scripts->add( ‘scriptaculous-sound’, ‘/wp-in $scripts->add( ‘scriptaculous-controls’, ‘/wp $scripts->add( ‘scriptaculous’, ”, array(‘sc // not used in core, replaced by Jcrop.js $scripts->add( ‘cropper’, ‘/wp-includes/js/cr $scripts->add( ‘jquery’, ‘/wp-includes/js/jqu // full jQuery UI $scripts->add( ‘jquery-ui-core’, ‘/wp-include $scripts->add( ‘jquery-effects-core’, ‘/wp-in $scripts->add( ‘jquery-effects-blind’, ‘/wp-i $scripts->add( ‘jquery-effects-bounce’, ‘/wp- $scripts->add( ‘jquery-effects-clip’, ‘/wp-in $scripts->add( ‘jquery-effects-drop’, ‘/wp-in $scripts->add( … Read more
Redirect old permalinks to new permalinks
WordPress should handle the 301 redirects for you automatically in this case. It doesn’t always, but it should here. Long story short, WordPress has a function, redirect_guess_404_permalink which tries to find the correct post when it encounters a 404 by using the end of the 404 url to query against the wp_posts.post_name. If it finds … Read more
Adding another state (spam, reject, approve) to wordpress comments?
Assuming you’d like the facility to update this data from the quickedit box whilst viewing the list of comments, you’ll need a series of actions and filters. I’ve tried to make appropriate comments in the necessary places for you, though bear in mind i threw this all together for you with a small amount of … Read more
Can WP Customizer work with single pages or posts?
That’s not exactly what the theme customizer is for. The theme customizer should be reserved for big (global) items. Like the background color of every page, not just a single page. There isn’t a way (that I know of) to change things on a per page basis. For things that are page specific to the … Read more
What are the current recommended best-practices for comments.php?
You really don’t need much. A headline with id=comments <h2 id=”comments”><?php comments_number(); ?></h2> This will be the target for comments_link() in the article loop. Links for paginated comments. Usually, I put these links into a function and call the function above and below the comments list: class TTT_Template { function comment_pager() { if ( get_comment_pages_count() … Read more
delete post also attachments
Maybe this works function remove_post() { if(isset($_POST[‘post_id’]) && is_numeric($_POST[‘post_id’])) { $post = get_post($_POST[‘post_id’]); if(get_current_user_id() == $post->post_author) { $args = array( ‘post_parent’ => $_POST[‘post_id’] ); $post_attachments = get_children($args); if($post_attachments) { foreach ($post_attachments as $attachment) { wp_delete_attachment($attachment->ID, true); } } wp_delete_post($_POST[‘post_id’], true); } } exit; } The code added function get_attachment_id_from_src ($image_src) { global $wpdb; $query = … Read more