How to Load Scripts and CSS for Admins Only When Editing or Adding Posts

you want to use admin_print_scripts-(page_hook) and admin_print_styles-(page_hook), so in your case: add_action(‘admin_print_scripts-post.php’, ‘call_my_function’); add_action(‘admin_print_scripts-post-new.php’, ‘call_my_function’); add_action(‘admin_print_styles-post.php’, ‘call_my_styles_function’); add_action(‘admin_print_styles-post-new.php’, ‘call_my_styles_function’);

How to show an error message after publishing a post?

I wouldn’t use that hook. Here’s why Try something like this using admin_notices. function wpsites_admin_notice() { $screen = get_current_screen(); if( ‘post’ == $screen->post_type && ‘edit’ == $screen->base ){ ?> <div class=”error”> <p><?php _e( ‘Updated Demo Message!’, ‘wpsites’ ); ?></p> </div> <?php }} add_action( ‘admin_notices’, ‘wpsites_admin_notice’ ); Untested.

wp_editor on front end – JavaScripts not included

note that wp_editor will echo to output, not put it in a variable. If you want to put it in a variable, just do ob_start(); wp_editor($content, ‘textarea_rich’, $args); $html = ob_get_contents(); ob_end_clean(); and you have what you need in $html. You can also see https://plugins.svn.wordpress.org/indypress/tags/1.0/indypress/form_inputs/tinymce.php for a working implementation. Another issue I noted is some … Read more

How to enable the tag in WordPress posts and pages

First things first, modifying core files is extremely frowned upon you will have to make these changes with every upgrade and they can lead to security and other problems. I’m pretty sure there is a plugin that will allow this. I did a simple search and here are a few to try: http://wordpress.org/extend/plugins/preserved-html-editor-markup/ http://wordpress.org/extend/plugins/ultimate-tinymce/

Disable the visibility options in WP

Quick hack to get the job done, in case anyone else needs to do this: add_action(‘add_meta_boxes’, function() { add_action(‘admin_head’, function() { echo <<<EOS <style type=”text/css”> #visibility { display: none; } </style> EOS; }); }); add_action(‘restrict_manage_posts’, function() { echo <<<EOS <script type=”text/javascript”> jQuery(document).ready(function($) { $(“input[name=”keep_private”]”).parents(“div.inline-edit-group:first”).hide(); }); </script> EOS; }); (Still curious to know if there’s a … Read more

How to group meta boxes on the post edit page

Thanks for the hint Bainternet, indeed this is very easy to implement with jQuery. Example (the four meta boxes are closed for clarity) : Here’s what I did : var $j = jQuery.noConflict(); $j(document).ready(function() { $j(“#side-sortables”).append(‘<div id=”container_div” class=”postbox meta-box-sortables ui-sortable”><div class=”handlediv” title=”Click to toggle.”><br></div><h3 class=”hndle”><span>Container Meta Box</span></h3><div id=”container_inside” class=”inside”></div></div>’); $j(“#my_metabox_div”).appendTo(“#container_inside”); $j(“#my_other_metabox_div”).appendTo(“#container_inside”); etc… }); I added … Read more