2011 年 1 月的偉大 WordPress 管理員選單挑戰 (a.k.a. 如何在修改 WordPress 管理選單系統時解決一些挑戰？)

問題描述

這個問題有點獨特。

這部分是”challenge” 我發給與 trac 門票相關的 WordPress 團隊 (或任何其他人)：#16048，#16050 和 #16204 。

目標

目標是在嘗試修改 WordPress 管理選單部分時，瞭解下面截圖中說明的三 (3) 個問題：

在編輯律師時，請將”Microsite” 子選單頁面突出顯示 (為此，我們需要以某種方式將”current” 應用於子選單項，_和 some hooks in the _wp_menu_output() function 將提供所需的內容)
獲取律師選單頁面連結以連結到/wp-admin/edit.php?post_type=attorney 當編輯律師 (和那些 same needed hooks in the _wp_menu_output() function 可以處理這個)，和
獲取”Microsite” 連結不會觸發「您沒有足夠的許可權訪問此頁面」錯誤*(這是最難解決的問題，並且 user_can_access_admin_page()的返回值的鉤子可以很好地處理這個問題。)

不止是我的 use-case

這三 (3) 個問題是我的 use-case，但它們是與 WordPress 中配置管理選單相關的問題的象徵。

WordPress 團隊中的幾位表示很容易，因此暗示我缺少某些東西 (這可能是對的)，但是我已經看了幾個星期的這個問題，沒有想出如何解決它，所以我建立了你看到的外掛 (也可從 Gist 下載) 作為最簡單的 use-case 的例子。 admin_menu2()中的程式碼是相當駭客的，但是在 WordPress 中修改管理員選單的功能幾乎相當。

請注意，我沒有嘗試在 3.1 中使用新的 remove_menu_page()和新的 remove_submenu_page()功能，因為建立外掛將需要更長時間 – 我已經從現有專案中獲取了 admin_menu2()中的程式碼 – 我不相信它們無論如何也會解決這個問題。

我需要什麼？

我需要兩件事之一：

解決這個問題的解決方案，我用這個外掛來解釋這個問題和螢幕截圖 (BTW，如果你使用 PHP Output Buffering 來解決這個問題，我將取消你的解決方案的資格)，或者
讓 WordPress 團隊認識到確實需要這些鉤子，並讓他們重新考慮他們在門票上的位置。

挑戰怎麼樣？

下載並安裝 pristine new copy of WordPress 3.1(任何版本都可能會)，
下載，安裝並啟用以下 (或 download the plugin from Gist) 的「2011 年 1 月的 Great WordPress 管理選單挑戰」外掛，然後
按照這個外掛的外掛頁面上的說明 (見下面的螢幕截圖)，但是基本上載入了您上面看到的螢幕截圖，然後嘗試找出描述的三 (3) 個問題：

一個希望之光

幸運的是 Andrew Nacin of the WordPress team offered to look at this 一旦我編碼了，所以我主要釋出在這裡給他評論和評論，並讓別人評論。我知道他很忙，但我希望他 (甚至你) 可以花時間安裝這個外掛，安裝 v3.1，然後看看他能否解決問題。

如果你同意挑戰是不可能的？

如果在嘗試了這個挑戰之後，你會得到與我一樣的結論，如果你想看到 WordPress 管理選單更具可配置性，請對這些 trac 門票 (#16048 – #16050 – #16204) 發表評論，並投票支援這個問題，以顯示支援為了它。

我會很高興地承認我錯過了一些事情，如果我做到了

當然，這可能是完全死亡的，有人可以指出如何做到這一點。其實我真的希望是這樣的; 我寧願錯了，比 vice-versa 有這個工作。

這是外掛

你也可以從 Gist 下載：

<?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%20Menu%20Editor</a>%20plugin%20handles%20the%20use-cases%20that%20the%20tickets%20address.%20Debate%20spilled%20over%20onto%20Twitter%20with%20participation%20from%20<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="https://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="https://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));
      $actions = array_merge(array('microsite'=>"<a href="http://$url" title="Manage this Microsite">Microsite</a>"),$actions);
      return $actions;
    }
    static function the_microsite_editor() {
      echo "We are in the Microsite Editor for " . self::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][12] = $submenu_file;
        }
      }
    }
    static function this_parent_slug() {
      return "edit.php?post_type=" . self::this_post_type();
    }
    static function post_title() {
      $post_id = self::this_post_id();
      return ($post_id ? get_post($post_id)->post_title : false);
    }
    static function microsite_page_title() {
      return 'Microsite for ' . self::post_title();
    }
    static function this_post_type($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'][13]); // 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();
}

對所有讀過這個的人來說，我真的希望你能幫忙。

提前致謝。

參考文獻

The Great WordPress Admin Menu Challenge of Jan 2011 (a.k.a. How to Resolve Some Challenges when Modifying the WordPress Admin Menu System?)

注：本文內容整合自 Google/Baidu/Bing 輔助翻譯的英文資料結果。如果您對結果不滿意，可以加入我們改善翻譯效果：薇曉朵技術論壇。

2011 年 1 月的偉大 WordPress 管理員選單挑戰 (a.k.a. 如何在修改 WordPress 管理選單系統時解決一些挑戰？)