wp-admin - Read For Learn

WordPress Admin: open popup window on a custom button

Maybe you can open a thickbox with javascript. A example with check for the height and width of the thickbox. <script type=”text/javascript”> <!– var viewportwidth, viewportheight; if (typeof window.innerWidth != ‘undefined’ ) { viewportwidth = window.innerWidth-80, viewportheight = window.innerHeight-100 } else if (typeof document.documentElement != ‘undefined’ && typeof document.documentElement.clientWidth != ‘undefined’ && document.documentElement.clientWidth != 0) … Read more

How to make an admin create/edit post page to look like taxonomy page?

yes, that is a cool idea! this kind of already happens in the quick edit, if you think about it… you just have to find the code that generates the quick edit and put it on the side like in the layout you showed. another way to go about it, look into this tutorial, which … Read more

Can’t preview custom post – Redirected to home page

Which filters or actions involve with index page for plugin?

There are only a few reliable filters for front end content, the_content being the only one that seems reasonably applicable. With that you can insert content in the post body. There are also actions like template_redirect and template_include but I doubt those execute where you want them to and using them could be tricky anyway. … Read more

Capability to read/edit page in wp-admin only for administrators

Thanks brasofilo! add_action( ‘pre_get_posts’, ‘hide_pages_to_user_except_admins’ ); function hide_pages_to_user_except_admins( $query ) { if( !is_admin() ) return $query; global $pagenow; $pages = array(‘201′,’38’,’99’); //page ids if( ‘edit.php’ == $pagenow && ( get_query_var(‘post_type’) && ‘page’ == get_query_var(‘post_type’) ) ) $query->set( ‘post__not_in’, $pages ); return $query; }

admin page passing $_POST variables to itself

WordPress passes the page as GET but your form uses POST. The two are different things. POST data never shows up in the URL like this: /wp-admin/admin.php?page=martial-patientenbeheer.php?naam=naam&vnaam= It is sent in the headers. Put var_dump($_POST) at the top of your callback and you should see your post data. You are looking for the data in … Read more

Create custom page and custom menu

If I understand you, what you are doing is almost correct. You need add_menu_page instead of add_submenu_page add_action(‘admin_menu’, ‘register_my_custom_submenu_page’); function register_my_custom_submenu_page() { add_menu_page( ‘My Custom Submenu Page’, ‘My Custom Submenu Page’, ‘manage_options’, ‘my-custom-submenu-page’, ‘my_custom_submenu_page_callback’ ); } function my_custom_submenu_page_callback() { echo ‘<h3>My Custom Submenu Page</h3>’; } As far as the “embedded” PHP, you already have it. … Read more

Post data in wp-admin to external database

Does the code that imports to the external DB need to be on a different page? Adding a conditional that checks if the form is submitted, to your callback function would work as well. Then your form posts the data back to itself, checks if the form is submited and runs the import script instead … Read more

Customize a WP_Posts_List_Table class

Whenever you find apply_filters() or do_action in the core files, you’ll have an entry point. If not, jQuery is never enough. And case it’s not enough, some heavy trickery is always available.

Show a custom field instead of username in the backend author area

Like this there are many other tutorials to display custom fields as columns in the WordPress admin. The tutorial will help you to unset the columns you don’t want to show and also to show the columns you would like to see. Hope this helps!

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