wp-admin - Read For Learn

Adding Fields to the Category, Tag and Custom Taxonomy Edit Screen in the WordPress Admin?

I added new field ‘picture’ (input type file) to category with help of these add_action(‘category_edit_form_fields’,’category_edit_form_fields’); add_action(‘category_edit_form’, ‘category_edit_form’); add_action(‘category_add_form_fields’,’category_edit_form_fields’); add_action(‘category_add_form’,’category_edit_form’); function category_edit_form() { ?> <script type=”text/javascript”> jQuery(document).ready(function(){ jQuery(‘#edittag’).attr( “enctype”, “multipart/form-data” ).attr( “encoding”, “multipart/form-data” ); }); </script> <?php } function category_edit_form_fields () { ?> <tr class=”form-field”> <th valign=”top” scope=”row”> <label for=”catpic”><?php _e(‘Picture of the category’, ”); ?></label> … Read more

Adding custom columns to custom post types

The hooks to create custom columns and their associated data for a custom post type are manage_{$post_type}_posts_columns and manage_{$post_type}_posts_custom_column respectively, where {$post_type} is the name of the custom post type. This example from the documentation removes the author column and adds a taxonomy and meta data column: // Add the custom columns to the book … Read more

Changing Admin Menu Labels

Here’s the process to change the labels (I changed posts to “contacts” in my example) function change_post_menu_label() { global $menu; global $submenu; $menu[5][0] = ‘Contacts’; $submenu[‘edit.php’][5][0] = ‘Contacts’; $submenu[‘edit.php’][10][0] = ‘Add Contacts’; $submenu[‘edit.php’][15][0] = ‘Status’; // Change name for categories $submenu[‘edit.php’][16][0] = ‘Labels’; // Change name for tags echo ”; } function change_post_object_label() { global … Read more

How to remove admin menu pages inserted by plugins?

You need to use the right hooks (which are not always the same as the URLs/slugs), and it doesn’t hurt to use a hook that runs later (e.g., admin_init): add_action( ‘admin_init’, ‘wpse_136058_remove_menu_pages’ ); function wpse_136058_remove_menu_pages() { remove_menu_page( ‘edit.php?post_type=acf’ ); remove_menu_page( ‘wpcf7’ ); } You can use the following to debug: add_action( ‘admin_init’, ‘wpse_136058_debug_admin_menu’ ); function … Read more

What are the standard admin CSS id/class tags?

We’re working on updating http://dotorgstyleguide.wordpress.com/ to have more of this information and reflect the style updates from 3.2. Other than that, I’ve seen a plugin (that I currently cannot locate) that shows a demo page of sorts that displays the various CSS selectors and what they look like, but I believe it was outdated. Other … Read more

How can I add an image upload field directly to a custom write panel?

For anyone who wants to know more about file uploading, here’s a quick primer covering the major topics and pain points. This is written with WordPress 3.0 on a Linux box in mind, and the code is just a basic overview to teach the concepts. I’m sure some folks here could offer advice for improvement … Read more

How do I Enqueue styles/scripts on Certain /wp-admin Pages?

add_menu_page and add_submenu_page both return the page’s “hook suffix”, which can be used to identify the page with certain hooks. As such, you can use that suffix in combination with the variable hooks admin_print_styles-{$hook_suffix} and admin_print_scripts-{$hook_suffix} to specifically target these pages. function my_menu() { $menu = add_menu_page( ‘Page 1’, ‘bar’, ‘something’, ‘else’, ‘foo’ ); $submenu … Read more

Can I rename the wp-admin folder?

Unfortunately it’s not currently possible nor does there appear to be will to consider it as a modification as you can see by this recent thread on the wp-hackers list and this ticket on trac. If you’d really like to see this be revisited I’d suggest: Present your case on wp-hackers but be forewarned your … Read more

How to check if a user is in a specific role?

If you only need this for current user current_user_can() accepts both roles and capabilities. UPDATE: Passing a role name to current_user_can() is no longer guaranteed to work correctly (see #22624). Instead, you may wish to check user role: $user = wp_get_current_user(); if ( in_array( ‘author’, (array) $user->roles ) ) { //The user has the “author” … Read more

Organizing Code in your WordPress Theme's functions.php File?

If you are getting to the point where the code in your theme’s functions.php is starting to overwhelm you I would definitely say you are ready to consider splitting it up into multiple files. I tend to do that almost by second nature at this point. Use Include Files in your Theme’s functions.php File I … Read more

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