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WordPress 基于评论者的用户角色确定评论样式

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本文目录
[隐藏]

  • 1定义一个按照给定的用户ID返回其角色的函数
  • 2为WORDPRESS的COMMENT_CLASS 添加过滤器
  • 3基于用户角色决定评论样式

本文介绍如何按照Wordpress评论者的角色确定评论的显示样式,以及如何让评论的class更干净。

定义一个按照给定的用户ID返回其角色的函数

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/*
Retrieve a commentator's role by the user ID
*/
function cwp_get_user_role( $user_id=null ){
    if ( ! isset( $user_id ) ) return null;
    $user = new WP_User( $user_id );
    $wp_roles = new WP_Roles;
    $role_names    = $wp_roles->get_names();
    $user_role_array      = array ();
    foreach ( $user->roles as $role ){
        if ( isset ( $role_names[ $role ] ) )
            $user_role_array[ $role ] = $role_names[ $role ];
    }
    return key( $user_role_array );
}

/* Retrieve a commentator’s role by the user ID */ function cwp_get_user_role( $user_id=null ){ if ( ! isset( $user_id ) ) return null; $user = new WP_User( $user_id ); $wp_roles = new WP_Roles; $role_names = $wp_roles->get_names(); $user_role_array = array (); foreach ( $user->roles as $role ){ if ( isset ( $role_names[ $role ] ) ) $user_role_array[ $role ] = $role_names[ $role ]; } return key( $user_role_array ); }

为WORDPRESS的COMMENT_CLASS 添加过滤器

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/*
Add filter to  comment_class for your WordPress
*/
function cwp_add_comment_author_roles_to_comment_class( $classes, $class, $comment_id, $post_id ){
    //Clean out the unnecessary classes for your comment list item.
    //if you want to use it,uncomment the following sentence.
    /*  $classes=cwp_clean_out_unnecessary_comment_classes($classes);*/
    $comment = get_comment( $comment_id );
    $user_id = (int)$comment->user_id;
    if ( 0 != $user_id ){
        $role = cwp_get_user_role( $user_id );
        if ( !isset( $role ) || empty( $role ) ) return $classes;
        $classes[] = $role;
    }
    return $classes;
}
add_filter( 'comment_class', 'cwp_add_comment_author_roles_to_comment_class', 10, 4 );

/* Add filter to comment_class for your WordPress */ function cwp_add_comment_author_roles_to_comment_class( $classes, $class, $comment_id, $post_id ){ //Clean out the unnecessary classes for your comment list item. //if you want to use it,uncomment the following sentence. /* $classes=cwp_clean_out_unnecessary_comment_classes($classes);*/ $comment = get_comment( $comment_id ); $user_id = (int)$comment->user_id; if ( 0 != $user_id ){ $role = cwp_get_user_role( $user_id ); if ( !isset( $role ) || empty( $role ) ) return $classes; $classes[] = $role; } return $classes; } add_filter( ‘comment_class’, ‘cwp_add_comment_author_roles_to_comment_class’, 10, 4 );

现在看看HTML输出情况:

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<li class="comment byuser comment-author-pw even thread-odd thread-alt depth-1 contributor" id="comment-18">
<!--此评论的内容部分-->
</li>

<li class=”comment byuser comment-author-pw even thread-odd thread-alt depth-1 contributor” id=”comment-18″> <!–此评论的内容部分–> </li>

看到了吧,代表角色的”contributor“已经按照预想正确输出了,但是comment_class默认输出了很多classes,但是并不是都有用的,下面定义一个清理函数,让清理过的classes仅保留comment:

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/*
Clean out the unnecessary classes for your comment list item.
*/
function cwp_clean_out_unnecessary_comment_classes($classes){
    foreach( $classes as $key => $class ) {
        switch( $class ) {
            case 'comment':
                continue;
            default:
                unset( $classes[$key] );
                continue;
            break;
        }
    }
    unset($key,$class);
    return $classes;
}

/* Clean out the unnecessary classes for your comment list item. */ function cwp_clean_out_unnecessary_comment_classes($classes){ foreach( $classes as $key => $class ) { switch( $class ) { case ‘comment’: continue; default: unset( $classes[$key] ); continue; break; } } unset($key,$class); return $classes; }

添加了上述代码后,再在’cwp_add_comment_author_roles_to_comment_class‘函数中按照说明将被注释掉的那一句启用,然后再看看输出了什么:

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<li class="comment contributor" id="comment-18">
<!--the comment item content is here-->
<>

基于用户角色决定评论样式

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