19 个代码片段让 WordPress 更易于管理
openkk 12年前
<img alt="19 个代码片段让 WordPress 更易于管理" src="https://simg.open-open.com/show/2b7a1759248e41bc41c172e68bdfd7a3.jpg" width="530" height="350" /> <h2>1. 根据用户名来限制管理菜单项目的访问</h2> <p>如果你希望你的管理菜单的某些项对某些用户可见，那么这个代码就会帮到你。只需替换 functions.php 中的 clients-username 为如下代码即可：</p> <pre class="brush: php; title: ; notranslate">function remove_menus() { global $menu; global $current_user; get_currentuserinfo(); if($current_user->user_login == 'clients-username') { $restricted = array(__('Posts'), __('Media'), __('Links'), __('Pages'), __('Comments'), __('Appearance'), __('Plugins'), __('Users'), __('Tools'), __('Settings') ); end ($menu); while (prev($menu)){ $value = explode(' ',$menu[key($menu)][0]); if(in_array($value[0] != NULL?$value[0]:"" , $restricted)){unset($menu[key($menu)]);} }// end while }// end if } add_action('admin_menu', 'remove_menus');</pre> <p><a href="/misc/goto?guid=4958339108541325530" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>2. 从面板中删除默认的Widget部件</h2> <pre class="brush: php; title: ; notranslate">// Create the function to use in the action hook function example_remove_dashboard_widgets() { // Globalize the metaboxes array, this holds all the widgets for wp-admin global $wp_meta_boxes; // Remove the incomming links widget unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']); // Remove right now unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']); unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']); unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']); } // Hoook into the 'wp_dashboard_setup' action to register our function add_action('wp_dashboard_setup', 'example_remove_dashboard_widgets' );</pre> <p><a href="/misc/goto?guid=4958339109342546964" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>3. 在 WP Admin 中显示紧急信息</h2> <p>该代码将任何登录的用户显示定制的消息</p> <pre class="brush: php; title: ; notranslate">/** * Generic function to show a message to the user using WP's * standard CSS classes to make use of the already-defined * message colour scheme. * * @param $message The message you want to tell the user. * @param $errormsg If true, the message is an error, so use * the red message style. If false, the message is a status * message, so use the yellow information message style. */ function showMessage($message, $errormsg = false) { if ($errormsg) { echo ' <div id="message" class="error"> '; } else { echo ' <div id="message" class="updated fade"> '; } echo " <p><strong>$message</strong></p> </div> "; } </div> </pre> <p>然后，为管理提醒函数增加钩子用来显示定制消息：</p> <pre class="brush: php; title: ; notranslate">/** * Just show our message (with possible checking if we only want * to show message to certain users. */ function showAdminMessages() { // Shows as an error message. You could add a link to the right page if you wanted. showMessage("You need to upgrade your database as soon as possible...", true); // Only show to admins if (user_can('manage_options') { showMessage("Hello admins!"); } } /** * Call showAdminMessages() when showing other admin * messages. The message only gets shown in the admin * area, but not on the frontend of your WordPress site. */ add_action('admin_notices', 'showAdminMessages');</pre> <p><a href="/misc/goto?guid=4958339110136889754" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>4. 隐藏 WordPress 更新提醒</h2> <pre class="brush: php; title: ; notranslate">add_action('admin_menu','wphidenag'); function wphidenag() { remove_action( 'admin_notices', 'update_nag', 3 ); }</pre> <p><a href="/misc/goto?guid=4958339110930293038" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>5. 从文章、页面编辑器中移除 Meta-Boxes</h2> <pre class="brush: php; title: ; notranslate">function remove_extra_meta_boxes() { remove_meta_box( 'postcustom' , 'post' , 'normal' ); // custom fields for posts remove_meta_box( 'postcustom' , 'page' , 'normal' ); // custom fields for pages remove_meta_box( 'postexcerpt' , 'post' , 'normal' ); // post excerpts remove_meta_box( 'postexcerpt' , 'page' , 'normal' ); // page excerpts remove_meta_box( 'commentsdiv' , 'post' , 'normal' ); // recent comments for posts remove_meta_box( 'commentsdiv' , 'page' , 'normal' ); // recent comments for pages remove_meta_box( 'tagsdiv-post_tag' , 'post' , 'side' ); // post tags remove_meta_box( 'tagsdiv-post_tag' , 'page' , 'side' ); // page tags remove_meta_box( 'trackbacksdiv' , 'post' , 'normal' ); // post trackbacks remove_meta_box( 'trackbacksdiv' , 'page' , 'normal' ); // page trackbacks remove_meta_box( 'commentstatusdiv' , 'post' , 'normal' ); // allow comments for posts remove_meta_box( 'commentstatusdiv' , 'page' , 'normal' ); // allow comments for pages remove_meta_box('slugdiv','post','normal'); // post slug remove_meta_box('slugdiv','page','normal'); // page slug remove_meta_box('pageparentdiv','page','side'); // Page Parent } add_action( 'admin_menu' , 'remove_extra_meta_boxes' );</pre> <p><a href="/misc/goto?guid=4958339111723180669" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>6. 创建个性化的面板</h2> <p>可轻松编辑自己的应用</p> <pre class="brush: php; title: ; notranslate">// Create the function to output the contents of our Dashboard Widget function example_dashboard_widget_function() { // Display whatever it is you want to show echo "Hello World, I'm a great Dashboard Widget"; } // Create the function use in the action hook function example_add_dashboard_widgets() { wp_add_dashboard_widget('example_dashboard_widget', 'Example Dashboard Widget', 'example_dashboard_widget_function'); } // Hoook into the 'wp_dashboard_setup' action to register our other functions add_action('wp_dashboard_setup', 'example_add_dashboard_widgets' );</pre> <p><a href="/misc/goto?guid=4958339112504005563" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>7. 禁用插件停用的功能</h2> <p>该代码将移除插件中的 Deactivate 链接，将下面代码保存到 functions.php 并保存。</p> <pre class="brush: php; title: ; notranslate">add_filter( 'plugin_action_links', 'slt_lock_plugins', 10, 4 ); function slt_lock_plugins( $actions, $plugin_file, $plugin_data, $context ) { // Remove edit link for all if ( array_key_exists( 'edit', $actions ) ) unset( $actions['edit'] ); // Remove deactivate link for crucial plugins if ( array_key_exists( 'deactivate', $actions ) && in_array( $plugin_file, array( 'slt-custom-fields/slt-custom-fields.php', 'slt-file-select/slt-file-select.php', 'slt-simple-events/slt-simple-events.php', 'slt-widgets/slt-widgets.php' ))) unset( $actions['deactivate'] ); return $actions; }</pre> <p><a href="/misc/goto?guid=4958339113291284536" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>8. 根据角色添加、删除和记录面板部件</h2> <pre class="brush: php; title: ; notranslate">function tidy_dashboard() { global $wp_meta_boxes, $current_user; // remove incoming links info for authors or editors if(in_array('author', $current_user->roles) || in_array('editor', $current_user->roles)) { unset($wp_meta_boxes['dashboard']['normal ']['core']['dashboard_incoming_links']); } // remove the plugins info and news feeds for everyone unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']); unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']); unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']); } //add our function to the dashboard setup hook add_action('wp_dashboard_setup', 'tidy_dashboard');</pre> <p>下面是用来取消默认面板部件的代码列表：</p> <pre class="brush: php; title: ; notranslate">//Right Now - Comments, Posts, Pages at a glance unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']); //Recent Comments unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments']); //Incoming Links unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']); //Plugins - Popular, New and Recently updated WordPress Plugins unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']); //Wordpress Development Blog Feed unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']); //Other WordPress News Feed unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']); //Quick Press Form unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_quick_press']); //Recent Drafts List unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_recent_drafts']);</pre> <p><a href="/misc/goto?guid=4958339114094013331" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>9. 更简单的登录 URL</h2> <p>将下面代码粘贴到 .htaccess 文件，放在 WordPress rewrite 规则之前</p> <pre class="brush: php; title: ; notranslate">RewriteRule ^login$ http://yoursite.com/wp-login.php [NC,L]</pre> <p><a href="/misc/goto?guid=4958339114884405184" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>10. Remove Pages Columns</h2> <p>下面代码允许你移除 ‘Pages’ 页中的你不再需要的列</p> <pre class="brush: php; title: ; notranslate">function remove_pages_columns($defaults) { unset($defaults['comments']); return $defaults; } add_filter('manage_pages_columns', 'remove_pages_columns');</pre> <p><a href="/misc/goto?guid=4958339115678282645" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>11. 禁止修改主题</h2> <p>该代码将面板中的 ‘Appearance’ 菜单项移除</p> <pre class="brush: php; title: ; notranslate">add_action( 'admin_init', 'slt_lock_theme' ); function slt_lock_theme() { global $submenu, $userdata; get_currentuserinfo(); if ( $userdata->ID != 1 ) { unset( $submenu['themes.php'][5] ); unset( $submenu['themes.php'][15] ); } }</pre> <p><a href="/misc/goto?guid=4958339113291284536" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>12. 修改面板底部的文本</h2> <pre class="brush: php; title: ; notranslate">function remove_footer_admin () { echo "Your own text"; } add_filter('admin_footer_text', 'remove_footer_admin');</pre> <p><a href="/misc/goto?guid=4958339117185410832" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>13. Remove Author Metabox/Options & Move to Publish MetaBox</h2> <pre class="brush: php; title: ; notranslate">// MOVE THE AUTHOR METABOX INTO THE PUBLISH METABOX add_action( 'admin_menu', 'remove_author_metabox' ); add_action( 'post_submitbox_misc_actions', 'move_author_to_publish_metabox' ); function remove_author_metabox() { remove_meta_box( 'authordiv', 'post', 'normal' ); } function move_author_to_publish_metabox() { global $post_ID; $post = get_post( $post_ID ); echo ' <div style="border-bottom-width:0px;border-top:#eeeeee 1px solid;" id="author" class="misc-pub-section"> Author: '; post_author_meta_box( $post ); echo ' </div> '; }</pre> <p><a href="http://wordpress.stackexchange.com/questions/1567/best-collection-of-code-for-your-functions-php-file?page=2&tab=votes#tab-top" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>14. 修改登录的 Logo</h2> <p>新的 logo 尺寸是 326 x 82 ，把图片放到主题的 images 目录，然后修改下面代码的 ‘companylogo.png’ 并将代码粘贴到 functions.php</p> <pre class="brush: php; title: ; notranslate">// login page logo function custom_login_logo() { echo ' <style type="text/css">h1 a { background: url('.get_bloginfo('template_directory').'/companylogo.png) 50% 50% no-repeat !important; } </style> '; } add_action('login_head', 'custom_login_logo');</pre> <p><a href="/misc/goto?guid=4958339118755851654" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>15. 移除文章 Columns</h2> <p>该代码将移除 posts 页面的列</p> <pre class="brush: php; title: ; notranslate">function remove_post_columns($defaults) { unset($defaults['comments']); return $defaults; } add_filter('manage_posts_columns', 'remove_post_columns');</pre> <p><a href="/misc/goto?guid=4958339109342546964" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>16. 禁用管理面板的顶级菜单</h2> <pre class="brush: php; title: ; notranslate">function remove_menus () { global $menu; $restricted = array(__('Dashboard'), __('Posts'), __('Media'), __('Links'), __('Pages'), __('Appearance'), __('Tools'), __('Users'), __('Settings'), __('Comments'), __('Plugins')); end ($menu); while (prev($menu)){ $value = explode(' ',$menu[key($menu)][0]); if(in_array($value[0] != NULL?$value[0]:"" , $restricted)){unset($menu[key($menu)]);} } } add_action('admin_menu', 'remove_menus');</pre> <p><a href="/misc/goto?guid=4958339120274088795" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>17. 禁用管理面板的子菜单</h2> <pre class="brush: php; title: ; notranslate">function remove_submenus() { global $submenu; unset($submenu['index.php'][10]); // Removes 'Updates'. unset($submenu['themes.php'][5]); // Removes 'Themes'. unset($submenu['options-general.php'][15]); // Removes 'Writing'. unset($submenu['options-general.php'][25]); // Removes 'Discussion'. } add_action('admin_menu', 'remove_submenus');</pre> <p><a href="/misc/goto?guid=4958339121062144858" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>18. 增加自定义的面板 Logo</h2> <p>首先需要创建透明的图片，尺寸为 30x31px (.gif or .png) 然后保存到主题的 images 目录 (/wp-content/themes/theme-name/images) ，名字任意</p> <pre class="brush: php; title: ; notranslate">//hook the administrative header output add_action('admin_head', 'my_custom_logo'); function my_custom_logo() { echo ' <style type="text/css"> #header-logo { background-image: url('.get_bloginfo('template_directory').'/images/custom-logo.gif) !important; } </style> '; }</pre> <p><a href="/misc/goto?guid=4958339121858998939" rel="nofollow" target="_blank"><span>Source </span></a></p> <p> </p> <h2>19. 为新的管理条添加和删除链接</h2> <pre class="brush: php; title: ; notranslate">function my_admin_bar_link() { global $wp_admin_bar; if ( !is_super_admin() || !is_admin_bar_showing() ) return; $wp_admin_bar->add_menu( array( 'id' => 'diww', 'parent' => 'my-blogs', 'title' => __( 'Title of the link you want to add'), 'href' => admin_url( 'http://mysitesurl.com/wp-admin.php' ) ) ); } add_action('admin_bar_menu', 'my_admin_bar_link');</pre> <pre class="brush: php; title: ; notranslate">function remove_admin_bar_links() { global $wp_admin_bar; $wp_admin_bar->remove_menu('my-blogs'); $wp_admin_bar->remove_menu('my-account-with-avatar'); } add_action( 'wp_before_admin_bar_render', 'remove_admin_bar_links' );</pre> <p><a href="/misc/goto?guid=4958339122655306773" rel="nofollow" target="_blank"><span>Source </span></a></p> via <a href="/misc/goto?guid=4958339123446435853" rel="nofollow" target="_blank">skytechgeek</a>