Custom css author role

Question

I need a code snippet to load css (extra style sheet?) when a author is logged in. This is for a custom dashboard and post "page".

The screenshot is what i mean by post page. I want to hide stuf by css for only authors. Things within the red circles are things i want to hide.

Answer 1

If a user is not logged in then admin_head probably won't run. So let's just check their capabilities.

function my_custom_admin_head() {
    if ( ! current_user_can( 'have-fun' )) :
    ?><style>
        #welcome-panel{display: none !important;}
        #wp-content-editor-tools{display: none !important;}
    </style>
    <?php endif; // cant' have-fun
}
add_action( 'admin_head', 'my_custom_admin_head' );

Answer 2

Change $url according to your requirements. In the current state the $url links to a stylesheet custom-style.css located in your current active theme's subdirectory admin. I tested this code and it is working fine. Enjoy :-)

/**
 * This function registers and enqueues styles on front-end if
 * logged-in user has a role 'author'.
 */
function customStylesheetForAuthorsOnly() {

    /* Unique slug for the specific resource. */
    $handle = 'unique-css-stylesheet-handle';

    /* URL of the stylesheet (resource). */
    $url = get_template_directory_uri() . '/admin/custom-style.css';

    /* Array containing the handles of all the dependencies. */
    $dependencies = array();

    wp_register_style($handle, $url, $dependencies);

    global $current_user;
    get_currentuserinfo();

    /* Check if current user has 'author' in his roles */
    if(in_array('author', $current_user->roles) === true) {
        wp_enqueue_style($handle);
    }

}
add_action('admin_enqueue_scripts', 'customStylesheetForAuthorsOnly');

Answer 3

Get current user ID and compare it with post author ID. If they are equal then load extra style sheet.

To get current user ID use $user_ID = get_current_user_id();

To get post author ID use $author_ID = get_the_author();

The best practice to load style sheet is to use wp_enqueue_style() function.