Highlighting a Menu Item by Post Name

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The question:

With the help of a couple of users, my last two questions were highlighting a custom menu item through its ID.

Now I’m trying to combine the code of the following two functions to make it work by Post Name:

Add highlighting to new Admin Dashboard Menu Item

add_action( 'admin_menu', 'create_menu' );
add_action( 'admin_head-post.php', 'wpse_58567_highlight_menu_item' );

function create_menu() {
    $settings_page = add_menu_page(
                                   'Edit_Post_69', 
                                   'Edit_Post_69', 
                                   'add_users', 
                                   '/post.php?post=69&action=edit', 
                                   '', 
                                   get_stylesheet_directory_uri() . '/editicon.png', 
                                   2
                                  );
}

function wpse_58567_highlight_menu_item() {
    global $post;

    if( 69 != $post->ID )
        return;
?>
    <script type="text/javascript">
        jQuery(document).ready( function($) {
            $('#toplevel_page_post-post-69-action-edit').removeClass('wp-not-current-submenu').addClass('current');
            $('#toplevel_page_post-post-69-action-edit').find('a:last').addClass('current');
        });     
    </script>
<?php
}

and….

Convert post name into post ID

$post = get_page_by_title( $post_name, OBJECT, 'post' );
echo $post->ID;

I am now trying to combine them so that I can specify a post name instead of a post ID, can anyone point me in the right direction?

The Solutions:

Below are the methods you can try. The first solution is probably the best. Try others if the first one doesn’t work. Senior developers aren’t just copying/pasting – they read the methods carefully & apply them wisely to each case.

Method 1

Attention to the use of get_page_by_title parameters.

And also to the use of the Heredoc PHP syntax.

$the_post_title = 'The Portfolio';

add_action( 'admin_menu', 'wpse_59050_add_menu' );
add_action( 'admin_head-post.php', 'wpse_59050_highlight_menu_item' );

function wpse_59050_add_menu() 
{
    global $the_post_title;
    $our_page = get_page_by_title( $the_post_title );

    $settings_page = add_menu_page( 'Edit '.$our_page->post_title, 'Edit '.$our_page->post_title, 'add_users', '/post.php?post='.$our_page->ID.'&action=edit', '', '', 2);
}

function wpse_59050_highlight_menu_item()
{
    global $the_post_title, $post;

    if( !is_object( $post ) )
        return;

    $our_page = get_page_by_title( $the_post_title );

    if( $our_page->ID != $post->ID )
        return;

    echo <<<HTML
        <script type="text/javascript">
            jQuery(document).ready( function($) {
                $('#toplevel_page_post-post-{$our_page->ID}-action-edit').removeClass('wp-not-current-submenu').addClass('current');
                $('#toplevel_page_post-post-{$our_page->ID}-action-edit').find('a:last').addClass('current');
            });     
        </script>
HTML;
}

Result:
enter image description here

Method 2

There’s a much easier way for setting the current menu context – the parent_file filter.

add_filter( 'parent_file', array( 'WPSE_59050', 'parent_file' ) );
add_action( 'admin_menu',  array( 'WPSE_59050', 'admin_menu' ) );

class WPSE_59050
{
    /**
     * The title of the post to add our menu item for.
     */
    const POST_TITLE = 'My Post Title';

    /**
     * Our cached post ID from title.
     * 
     * @var int
     */
    private static $_post_id;

    /**
     * Correctly set the menu context if we're editing our post.
     *
     * @return string
     */
    public static function parent_file( $parent_file )
    {
        global $pagenow;

        if ( $pagenow == 'post.php' && isset( $_REQUEST['post'] ) && $_REQUEST['post'] == self::get_post_id() )
            $parent_file = "post.php?post={$_REQUEST['post']}&action=edit";

        return $parent_file;
    }

    /**
     * Add the menu item if the post can be found.
     */
    public static function admin_menu()
    {
        if ( $post_id = self::get_post_id() )
            add_menu_page( 'Edit ' . self::POST_TITLE, 'Edit ' . self::POST_TITLE, 'add_users', "/post.php?post=$post_id&action=edit" );
    }

    /**
     * Get our post ID from the title & cache it.
     *
     * @return int
     */
    public static function get_post_id()
    {
        if ( ! isset( self::$_post_id ) ) {
            if ( $post = get_page_by_title( self::POST_TITLE, OBJECT, 'post' ) )
                self::$_post_id = $post->ID;
            else
                self::$_post_id = null;
        }

        return self::$_post_id;
    }
}

Update: Changed menu & page title to use post title, rather than ID.

Method 3

add_filter( 'parent_file', 'parent_file_hover' );
function parent_file_hover( $parent_file )   {
    global $pagenow;
    if ( $pagenow == 'post.php')
        $parent_file = "post.php?post={$_REQUEST['post']}&action=edit";
    elseif($pagenow == 'post-new.php')
        $parent_file = "post-new.php?post_type={$_REQUEST['post_type']}";
    return $parent_file;
}


All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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