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The Great WordPress Admin Menu Challenge of Jan 2011

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admin-menu-challenge.php
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<?php
/*
Plugin Name: The Great WordPress Admin Menu Challenge of Jan 2011
Description: <em>"The Great WordPress Admin Menu Challenge of Jan 2011"</em> was inspired by the WordPress team's apparent lack of understanding of the problems addressed by trac tickets <a href="http://core.trac.wordpress.org/ticket/16048">#16048</a> and <a href="http://core.trac.wordpress.org/ticket/16050">#16050</a> <em>(See also: <a href="http://core.trac.wordpress.org/ticket/16204">#16204</a>)</em> and suggestion that the <a href="http://wordpress.org/extend/plugins/admin-menu-editor/>Admin Menu Editor</a> plugin handles the use-cases that the tickets address. Debate spilled over onto Twitter with participation from <a href="http://twitter.com/nacin">@nacin</a>, <a href="http://twitter.com/aaronjorbin">@aaronjorbin</a>, <a href="http://twitter.com/petemall">@petemall</a>, <a href="http://twitter.com/westi">@westi</a>, <a href="http://twitter.com/janeforshort">@janeforshort</a>, <a href="http://twitter.com/PatchesWelcome">@PatchesWelcome</a>; supportive comments from <a href="http://twitter.com/ramsey">@ramsey</a>, <a href="http://twitter.com/brianlayman">@brianlayman</a>, <a href="http://twitter.com/TheLeggett">@TheLeggett</a>, a retweeting of @nacin's simple yet <em>(AFAICT)</em> insufficient solution by <a href="http://twitter.com/vbakaitis">@vbakaitis</a>, <a href="http://twitter.com/Viper007Bond">@Viper007Bond</a>, <a href="http://twitter.com/nickopris">@nickopris</a>, <a href="http://twitter.com/Trademark">@Trademark</a>, <a href="http://twitter.com/favstar_pop">@favstar_pop</a>, <a href="http://twitter.com/designsimply">@designsimply</a>, <a href="http://twitter.com/darylkoop">@darylkoop</a>, <a href="http://twitter.com/iamjohnford">@iamjohnford</a>, <a href="http://twitter.com/markjaquith">@markjaquith</a>, <a href="http://twitter.com/JohnJamesJacoby">@JohnJamesJacoby</a> and <a href="http://twitter.com/dd32">@dd32</a>. Also see <a href="http://andrewnacin.com/2010/12/20/better-admin-menu-controls-custom-post-types-wordpress-3-1/#comment-6360">comments</a> on @nacin's blog post entitled "<em>Better admin menu handling for post types in WordPress 3.1</em>." <strong>The desired goal of the <em>"challenge"</em></strong> is to simply either to find a solution that has eluded me or, to get those who are dismissing it as solvable without added hooks in WordPress to have a tangible example to explore in hopes they will recognize that there is indeed a need for at least some of the requested hooks. <strong>There are three (3) steps to the challenge:</strong> 1.) Get the "Microsite" submenu page to be highlighted when editing an Attorney, 2.) Get the Attorney Menu Page link to link <a href="/wp-admin/edit.php?post_type=attorney">here</a> when editing an Attorney, and 3.) Get the "Microsite" link not to trigger a "You do not have sufficient permissions to access this page" error. Here is <a href="http://mikeschinkel.com/websnaps/skitched-20110114-235302.png" target="_blank"><strong>a screenshot</strong> that attempts to illustrate the callenge</a>. The code can be found on gist <a href="https://gist.github.com/780709"><strong>here</strong></a>. Activate it as a plugin in a WordPress 3.1 install and go <a href="/wp-admin/post.php?post=10&action=edit"><strong>here</strong></a> to see what the screenshot illustrates. <strong>Be sure to load the <a href="http://mikeschinkel.com/websnaps/skitched-20110114-235302.png" target="_blank">screenshot</a> in another browser tab or window first</strong>.
Author: Mike Schinkel
Author URI: http://about.me/mikeschinkel
Plugin URI: https://gist.github.com/780709
*/
if (!class_exists('TheGreatWordPressAdminMenuChallenge')) {
class TheGreatWordPressAdminMenuChallenge {
static function on_load() {
add_action('init',array(__CLASS__,'init'));
add_action('admin_menu',array(__CLASS__,'admin_menu1')); // Simulates generic "Microsite" plugin
add_action('admin_menu',array(__CLASS__,'admin_menu2'),100); // Simulates website-specific plugin
add_action('post_row_actions',array(__CLASS__,'post_row_actions'),10,2);
}
static function post_row_actions($actions,$post) {
$url = admin_url(self::this_microsite_url($post->ID));
$actions = array_merge(array('microsite'=>"<a href=\"{$url}\" title=\"Manage this Microsite\">Microsite</a>"),$actions);
return $actions;
}
static function the_microsite_editor() {
echo "We are in the Microsite Editor for " . self::this_post_title();
}
static function admin_menu1() {
if (self::this_post_id() && in_array(self::this_post_type(),array('attorney','practice_area'))) {
add_submenu_page(
self::this_parent_slug(),
self::microsite_page_title(),
self::microsite_page_title(),
$capability = 'edit_posts',
'microsite',
array($microsite,'the_microsite_editor')
);
global $wp_post_types;
$parent_type_meta = $wp_post_types[self::this_post_type()];
global $menu;
$slug = false;
foreach($menu as $index => $menu_page)
if ($menu_page[0]===$parent_type_meta->label) {
$slug = $menu_page[2];
break;
}
if ($slug) {
global $pagenow;
global $submenu;
// Setting this makes gives the link to the microsite in the menu the highlight for "current" menu option
global $submenu_file;
$submenu_file = self::this_microsite_url();
$index = end(array_keys($submenu[$slug]));
$submenu[$slug][$index][2] = $submenu_file;
}
}
}
static function this_parent_slug() {
return "edit.php?post_type=" . self::this_post_type();
}
static function this_post_title() {
$post_id = self::this_post_id();
return ($post_id ? get_post($post_id)->post_title : false);
}
static function microsite_page_title() {
return 'Microsite for ' . self::this_post_title();
}
static function this_post_type($get_post=true) {
$post_type = (isset($_GET['post_type']) ? $_GET['post_type'] : false);
if (!$post_type && $get_post) {
$post_id = self::this_post_id();
$post_type = get_post($post_id)->post_type;
}
return $post_type;
}
static function this_post_id() {
$post_id = false;
$post_type = self::this_post_type(false);
if (isset($_GET[$post_type]))
$post_id = intval($_GET[$post_type]);
else if (isset($_GET['post']))
$post_id = intval($_GET['post']);
return $post_id;
}
static function this_microsite_url($post_id=false) {
$post_type = self::this_post_type();
$post_id = $post_id ? intval($post_id) : self::this_post_id();
return "edit.php?post_type={$post_type}&page=microsite&attorney={$post_id}";
}
static function admin_menu2() {
// The code required for this is super, nasty, ugly and shouldn't be, but at least it *is* doable
global $menu;
global $submenu;
global $microsite;
 
$parent_type = self::this_post_type();
foreach(array('attorney','practice_area') as $post_type) {
$slug = "edit.php?post_type={$post_type}";
if ($post_type==$parent_type) { // If a microsite remove everything except the microsite editor
$microsite_url = self::this_microsite_url();
foreach($submenu[$slug] as $submenu_index => $submenu_page) {
if ($submenu_page[2]!=$microsite_url) {
unset($submenu[$slug][$submenu_index]);
}
}
} else {
$submenu[$slug] = array();
}
}
 
// Remove the Submenus for each menu
unset($submenu['index.php']);
unset($submenu['edit.php?post_type=article']);
unset($submenu['edit.php?post_type=event']);
unset($submenu['edit.php?post_type=case_study']);
unset($submenu['edit.php?post_type=news_item']);
unset($submenu['edit.php?post_type=transaction']);
unset($submenu['edit.php?post_type=page']);
unset($submenu['upload.php']);
 
unset($submenu['users.php'][10]); // Removed the "Add New"
 
$remove = array_flip(array(
'edit.php',
'link-manager.php',
'edit-comments.php',
'edit.php?post_type=microsite-page',
));
if (!current_user_can('manage_tools'))
$remove['tools.php'] = count($remove);
 
foreach($menu as $index => $menu_page) {
if (isset($remove[$menu_page[2]])) {
unset($submenu[$menu_page[2]]);
unset($menu[$index]);
}
}
 
$move = array(
'edit.php?post_type=page' => array( 'move-to' => 35, 0 => 'Other Pages' ),
'separator2' => array( 'move-to' => 40 ),
'upload.php' => array( 'move-to' => 50, 0 => 'Media Library' ),
);
$add = array();
foreach($menu as $index => $menu_page) {
if (isset($move[$menu_page[2]])) {
foreach($move[$menu_page[2]] as $value_index => $value) {
if ($value_index==='move-to') {
$move_to = $value;
} else {
$menu_page[$value_index] = $value;
}
}
$add[$move_to] = $menu_page;
unset($menu[$index]);
}
}
foreach($add as $index => $value)
$menu[$index] = $value;
 
add_menu_page(
'Attorney Positions',
'Attorney Positions',
'edit_posts',
'edit-tags.php?taxonomy=attorney-position&amp;post_type=attorney',
false,
false,
55);
 
ksort($menu); // Need to sort or it doesn't come out right.
}
static function init() {
register_post_type('attorney',array(
'label' => 'Attorneys',
'public' => true,
));
register_post_type('practice_area',array(
'label' => 'Practice Areas',
'public' => true,
));
register_taxonomy('attorney-position','attorney',array(
'label'=>'Attorney Positions',
));
register_post_type('article',array(
'label' => 'Articles & Presentations',
'public' => true,
));
register_post_type('case_study',array(
'label' => 'Case Studies',
'public' => true,
));
register_post_type('news_item',array(
'label' => 'Firm News',
'public' => true,
));
register_post_type('event',array(
'label' => 'Events',
'public' => true,
));
register_post_type('transaction',array(
'label' => 'Transactions',
'public' => true,
));
 
// Install the test data
$post_id = 10;
$attorney = get_post($post_id);
if (!$attorney) {
global $wpdb;
$wpdb->insert($wpdb->posts,array(
'ID' => $post_id,
'post_title' => 'John Smith',
'post_type' => 'attorney',
'post_content' => 'This is a post about the Attorney John Smith.',
'post_status' => 'publish',
'post_author' => 1,
));
}
}
}
TheGreatWordPressAdminMenuChallenge::on_load();
}

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