在作者档案中执行WP_QUERY以便于使用自定义查询进行分页

时间：2011-04-12 作者：Ashfame

我正在使用get_posts 和get_comments 在页面上构建几个循环，我在分页方面遇到了一些问题。

我有每页全局帖子选项(Settings > Reading) 设置为10, 这似乎改变了问题。到目前为止，我可以很容易地Page 2 - http://dev.ashfame.com/author/ashfame/page/2/, 但是Page 3 返回a404.

如果我降低全局值，我会有更多的分页页面，但不是所有页面（少于应有的页面数量）。

Update: 我刚刚尝试将我的自定义设置设置为2（也是全局设置），WordPress应该分页到page 4 （我有7 要显示的项目）但现在它可以page 5 & 6. 7 给予404. 为什么？现在如何排除此问题？

Progress: @t31os帮助我弄清楚，这是页面上的WP默认查询，它正在为该页面设置分页。现在，我可以想出一种方法来终止该页面上的默认WP查询（但是怎么做呢？）那么我该如何进一步分页author.php 页或者还有其他的方法吗？

Current code:

<?php

            $author_details = $wp_query->get_queried_object();

            // Posts Per Page option
            // $ppp = get_option(\'posts_per_page\');
            $ppp = 1; //custom setting, if you want to obey the global setting here, comment this line and uncomment the above line

            if (!is_paged()) {
                $custom_offset = 0;
            } else {
                $custom_offset = $ppp*($paged-1);
            }

            echo \'<h1>Author ID : \'.$author_details->ID.\', Page : \'.$paged.\', Custom Offset : \'.$custom_offset.\'</h1>\';

            ?>

            <h2>Articles</h2>

            <?php
            $args = array(
            \'numberposts\' => $ppp,
            \'offset\' => $custom_offset,
            \'category\' => 7,
            \'author\' => $author_details->ID
            );

            $posts_data = get_posts( $args );

            // print_r($posts_data);

            if ( count( $posts_data ) > 0 ) {               
                echo \'<ul>\';                
                foreach ( $posts_data as $post ) {                      
                    echo \'<li><a href="\'.get_permalink( $post->ID ).\'">\'.$post->post_title.\'</a></li>\';
                }               
                echo \'</ul>\';
            } else {
                echo \'<p>No articles by this user</p>\';
            }           
            ?>

            <h2>Journals</h2>

            <?php
            $args = array(
            \'numberposts\' => $ppp,
            \'offset\' => $custom_offset,
            \'category\' => 6,
            \'author\' => $author_details->ID
            );
            $posts_data = get_posts( $args );

            // print_r($posts_data);

            if ( count( $posts_data ) > 0 ) {               
                echo \'<ul>\';                
                foreach ( $posts_data as $post ) {                      
                    echo \'<li><a href="\'.get_permalink( $post->ID ).\'">\'.$post->post_title.\'</a></li>\';
                }               
                echo \'</ul>\';
            } else {
                echo \'<p>No journals by this user</p>\';
            }
            ?>

            <h2>Questions</h2>

            <?php
            $args = array(
            \'numberposts\' => $ppp,
            \'offset\' => $custom_offset,
            \'category\' => 3, // parent category ID is enough
            \'author\' => $author_details->ID
            );
            $posts_data = get_posts( $args );

            // print_r($posts_data);

            if ( count( $posts_data ) > 0 ) {               
                echo \'<ul>\';                
                foreach ( $posts_data as $post ) {                      
                    $category_array = get_the_category( $post->ID );
                    $category_name = $category_array[0]->name;
                    $category_permalink = get_category_link( $category_array[0]->term_id );
                    echo \'<li><a href="\'.get_permalink( $post->ID ).\'">\'.$post->post_title.\'</a>
                    <br />In: <a href="\'.$category_permalink.\'">\'.$category_name.\'</a><br />\'.get_comments_number( $post->ID ).\' Answers</li>\';
                }               
                echo \'</ul>\';
            } else {
                echo \'<p>No questions by this user</p>\';
            }
            ?>

            <h2>Answers</h2>

            <?php
            $args = array(
            \'user_id\' => $author_details->ID,
            \'number\' => $ppp,
            \'offset\' => $custom_offset,
            \'status\' => \'approve\'
            );
            $answers_list = get_comments( $args );

            // print_r($answers_list);

            if ( count( $answers_list ) > 0 ) {
                $date_format = get_option( \'date_format\' );
                echo \'<ul>\';
                foreach ( $answers_list as $answer ) {
                    echo \'<li>Answer: \'.substr( $answer->comment_content, 0, 20 ).\'..<br />\'.date( $date_format, strtotime( $answer->comment_date ) ).\'<br />Question: <a href="\'.get_permalink( $answer->comment_post_ID ).\'">\'.get_the_title( $answer->comment_post_ID ).\'</a></li>\';
                }
                echo \'</ul>\';
            } else {
                echo \'<p>No answers by this user</p>\';
            }
            ?>

1 个回复

最合适的回答,由SO网友:t31os 整理而成

<子>t31os says:_{[请参见编辑历史记录以了解以前的代码和注释]}

使用Ajax对查询分页，我编写了一些代码，这些代码将通过Ajax使用简单的上一页/下一页导航，通过Ajax获取您的帖子和评论。

1) 替换您在中发布的所有代码author.php 使用以下内容。。

<?php $cat_settings = array( \'Articles\' => 7, \'Journals\' => 6, \'Questions\' => 3 ); ?>
<?php do_action( \'author_ajax_catposts\', $cat_settings ); ?>

2) 在主题目录中创建一个名为authorposts.js 并将以下代码放入该文件中。

jQuery(document).ready( function($) {
    
    if( \'undefined\' == typeof( aacVars ) )
        return;
    
    $(\'.aacnav\').click(function() {
        
        var r = $( $(this).attr(\'href\') );
        var a = $( $(this).attr(\'href\') + \'-ap\' );
        var c = this.className.split(\' \');
        
        if( 
            \'undefined\' == typeof( c ) || 
            \'undefined\' == typeof( r ) || 
            \'undefined\' == typeof( a ) 
        )
            return false;
        
        var d = { 
            action:      aacVars.posts_action, 
            _ajax_nonce: aacVars.nonce,
            author:      aacVars.author,
            category:    $(this).attr(\'href\')
        };
        
        p = parseInt( a.text() );
        c = c.pop();
        
        switch( c ) {
            case \'aacnext\':
                if( r.children(\'p.nomore\').length )
                    return false;
                d.page = p + 1;
            break;
            case \'aacprev\':
                if( p < 2 )
                    return false;
                d.page = p - 1;
            break;
            default:
                return false;
        }
        
        $.post( aacVars.ajaxpth, d, function( res ) {
            if( \'-1\' == res ) {
                alert( \'auth failed\' );
                return false;
            }
            $( r ).html( res );
            $( a ).text( d.page );
        });
        
        return false;
    });
    
    $(\'.aacnavc\').click(function() {
        
        var r = $( \'#aac-comments\' );
        var n = $( \'#aac-comments-ap\' );
        var l = $(this).attr(\'href\');
        
        if( 
            \'undefined\' == typeof( n ) || 
            \'undefined\' == typeof( r ) 
        )
            return false;
        
        var d = { 
            action:      aacVars.comments_action, 
            _ajax_nonce: aacVars.nonce,
            author:      aacVars.author
        };
        
        p = parseInt( n.text() );
        
        switch( l ) {
            case \'#next\':
                if( r.children(\'p.nomore\').length )
                    return false;
                d.page = p + 1;
            break;
            case \'#prev\':
                if( p < 2 )
                    return false;
                d.page = p - 1;
            break;
            default:
                return false;
        }
        
        $.post( aacVars.ajaxpth, d, function( res ) {
            if( \'-1\' == res ) {
                alert( \'auth failed\' );
                return false;
            }
            r.html( res );
            $( n ).text( d.page );
        });
        
    });
    
});

3) 将以下代码复制到主题的functions.php 文件

class Author_Ajax_Cats {
    
    private $posts_per_page    = 3;
    private $comments_per_page = 1;
    private $posts_action      = \'aac-posts\';
    private $comments_action   = \'aac-comments\';
    private $js                = array();
    
    public function __construct() {
        
        add_action( \'parse_request\',                            array( $this, \'aac_parse_request\' ) );
        add_action( \'wp_ajax_nopriv_\' . $this->posts_action,    array( $this, \'aac_ajax_posts\' ) );
        add_action( \'wp_ajax_\' .        $this->posts_action,    array( $this, \'aac_ajax_posts\' ) );
        add_action( \'wp_ajax_nopriv_\' . $this->comments_action, array( $this, \'aac_ajax_comments\' ) );
        add_action( \'wp_ajax_\' .        $this->comments_action, array( $this, \'aac_ajax_comments\' ) );
        add_action( \'wp_enqueue_scripts\',                       array( $this, \'aac_enqueue_scripts\' ) );
        add_action( \'author_ajax_catposts\',                     array( $this, \'aac_print_posts\' ) );
    }
    public function aac_parse_request( $wp ) {
        
        if( !isset( $wp->query_vars[\'author_name\'] ) || is_admin() )
            return;
        
        $wp->query_vars[\'paged\'] = 1;
        
    }
    private function setup_js_vars() {
        
        global $wp_query;
        
        $this->js[\'author\']          = $wp_query->get_queried_object_id();
        $this->js[\'posts_action\']    = $this->posts_action;
        $this->js[\'comments_action\'] = $this->comments_action;
        $this->js[\'nonce\']           = wp_create_nonce( \'noncekey\' );
        $this->js[\'ajaxpth\']         = admin_url( \'admin-ajax.php\' );
    }
    public function aac_enqueue_scripts() {
        
        if( !is_author() )
            return;
        
        $this->setup_js_vars();
        
        wp_register_script( \'author-ajax\', get_bloginfo(\'stylesheet_directory\') . \'/authorposts.js\', array( \'jquery\' ), time(), true );
        wp_localize_script( \'author-ajax\', \'aacVars\', $this->js );
        wp_enqueue_script( \'author-ajax\' );
    }
    public function aac_ajax_comments() {
        
        if( !isset( $_POST[\'page\'] ) || !isset( $_POST[\'author\'] ) )
            die;
        
        check_ajax_referer( \'noncekey\' );
        
        $authID = absint( $_POST[\'author\'] );
        $paged  = absint( $_POST[\'page\'] );
        
        $args = array(
            \'user_id\' => $authID,
            \'number\'  => $this->comments_per_page,
            \'offset\'  => ( ( $paged - 1 ) * $this->comments_per_page ),
            \'status\'  => \'approve\',
            \'type\'    => \'comment\'
        );

        $answers_list = get_comments( $args );
        if( empty( $answers_list ) ) {
            printf( \'<p class="nomore">%s</p>\', __( \'No more answers by this user.\' ) );
            die;
        }
        $_comment_walk = new Walker_Comment;
        
        echo \'<ul>\';
        $_comment_walk->paged_walk( $answers_list, 0, 1, $this->comments_per_page, array( 
            \'style\' => \'ul\', 
            \'avatar_size\' => 15, 
            \'max_depth\' => 1, 
            \'callback\' => array( $this, \'author_comment_walker\' ) 
        ) );
        echo \'</ul>\';
        
        die;
    }
    public function aac_ajax_posts() {
        
        if( !isset( $_POST[\'page\'] ) || !isset( $_POST[\'category\'] ) || !isset( $_POST[\'author\'] ) )
            die;
        
        check_ajax_referer( \'noncekey\' );
        
        $catID  = absint( str_replace( \'#aac-\', \'\', $_POST[\'category\'] ) );
        $authID = absint( $_POST[\'author\'] );
        $paged  = absint( $_POST[\'page\'] );
        
        $args = array(
            \'paged\'       => $paged,
            \'numberposts\' => $this->posts_per_page,
            \'author\'      => $authID,
            \'cat\'         => $catID
        );
        $posts = get_posts( $args );

        if( empty( $posts ) )
            die( sprintf( \'<p class="nomore">%s</p>\', __( \'No more posts.\' ) ) );
        
        $this->do_posts( $posts );
        
        die;
    }
    public function aac_print_posts( $cats = array() ) {
        
        //get_the_term_list( $post->ID, \'category\', \'<ul><li>\', \'</li><li>\', \'</li></ul>\' )
        
        foreach( $cats as $heading => $id ) {
            $args = array( 
                \'cat\'         => $id,
                \'paged\'       => 1, // Always the first page on load
                \'numberposts\' => $this->posts_per_page, 
                \'author\'      => $this->js[\'author\']
            );
            $posts = get_posts( $args );
            
            printf( \'<h2>%s</h2>\', $heading );
            
            if( empty( $posts ) ) {
                printf( \'<div><p class="nomore">%s</p></div>\', __( \'No posts.\' ) );
                continue;
            }
            
            printf( \'<div id="aac-%d" class="aac-result">\', $id );
            
            $this->do_posts( $posts );
            
            printf( \'</div><div>\' );
            printf( \'<p class="alignright">Page: <span id="aac-%1$d-ap">1</span></p><p class="alignleft"><a class="aacnav aacprev" href="#aac-%1$d">%2$s</a> <a class="aacnav aacnext" href="#aac-%1$d">%3$s</a></p>\', $id, __(\'Previous\'), __(\'Next\') );
            printf( \'<br class="clear" /></div>\' );
        }
        ?>

        <h2>Answers</h2>

        <?php
        $args = array(
            \'user_id\' => $this->js[\'author\'],
            \'number\'  => $this->comments_per_page,
            \'status\'  => \'approve\',
            \'type\'    => \'comment\'
        );
        $answers_list = get_comments( $args );
        if( empty( $answers_list ) ){
            printf( \'<p>%s</p>\', __( \'No answers by this user\' ) );
            return;
        }
        $_comment_walk = new Walker_Comment;
        
        printf( \'<div id="aac-comments"><ul>\' );

        $_comment_walk->paged_walk( $answers_list, 0, 1, $this->comments_per_page, array( 
            \'style\' => \'ul\', 
            \'avatar_size\' => 15, 
            \'max_depth\' => 1, 
            \'callback\' => array( $this, \'author_comment_walker\' ) 
        ) );
            
        printf( \'</ul></div><div><p class="alignright">Page: <span id="aac-comments-ap">1</span></p><p class="alignleft"><a class="aacnavc" href="#prev">%s</a> <a class="aacnavc" href="#next">%s</a></p><br class="clear" /></div>\', __(\'Prev\'), __(\'Next\') );
    }
    private function do_posts( $posts, $term_id = 0 ) {
    
        echo \'<ul>\';
        foreach( $posts as $post )
            printf( \'<li><a href="%s">%s</a></li>\', get_permalink( $post->ID ), get_the_title( $post->ID ) );
        echo \'</ul>\';
        
    }
    public function author_comment_walker( $comment, $args, $depth ) {
        
        $GLOBALS[\'comment\'] = $comment; 
        ?>
        
        <li>
            <div id="comment-<?php comment_ID(); ?>">
                <div>
                    <?php echo get_avatar( $comment, $args[\'avatar_size\'], $default = \'<path_to_url>\' ); ?> <?php echo get_comment_author_link(); ?> answered 
                    <a href="<?php echo get_permalink( $comment->comment_post_ID ); ?>"><?php echo get_the_title( $comment->comment_post_ID ); ?></a> on <a href="<?php echo htmlspecialchars( get_comment_link( $comment->comment_ID ) ) ?>"><?php printf( __( \'%1$s at %2$s\' ), get_comment_date(),  get_comment_time() ); ?></a>
                    <?php //edit_comment_link( __( \'(Edit)\' ),\'  \',\'\' ); ?>
                </div>
                <?php // comment_text() ?>
                <p><?php comment_excerpt(); ?></p>
            </div>
        <?php
    }
}
$aac = new Author_Ajax_Cats;

4) 打开一个作者页面，看看结果如何，并检查我的代码是否适合您。

它与测试数据的局部外观

单击查看更大的版本，按比例缩小以获得答案

实际代码的现场演示：**（测试站点）

http://t31os.onatha.com/author/t31os/

5) 提供一些反馈：）

我希望这有助于。。。

结束

小码农CODE

在作者档案中执行WP_QUERY以便于使用自定义查询进行分页

它与测试数据的局部外观

实际代码的现场演示：**（测试站点）

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