按帖子类型对搜索结果进行分组，但隐藏没有结果的帖子类型

时间：2019-01-08 作者：Justin Picard

我在寻找一种干净的方法，按posttype对搜索结果进行分组。我目前有3种帖子类型：页面、帖子和词汇表。经过长时间的搜索this answer 这条线给了我我所需要的。

唯一的问题是，没有检查帖子类型是否没有搜索结果。如果一个帖子类型有0个结果，例如词汇表，它仍然显示帖子类型标题（以及帖子类型周围的容器）。我想要帖子类型li.search-results-post-type-item 被藏在那个箱子里。

我不是在找css/js黑客display: none; 解决方案我无法想象这不能用PHP完成。

提前感谢！

当前情况

Posts

<发布搜索结果1等

Pages

<页面搜索结果1、页面搜索结果2等

Glossary

（空）

理想情况

Posts

<发布搜索结果1等

Pages

  • 页面搜索结果1
  • 页面搜索结果2
  • 等
      • 我的代码：

      <?php
    $search_query = new WP_Query(
    array(
        \'posts_per_page\'    => 10,
        \'s\'                 => esc_attr( $_POST[\'keyword\'] ),
        \'paged\'             => $paged,
        \'post_status\'       => \'publish\'
    )
);

if( $search_query->have_posts() ) : ?>

    <div class="search-suggestions-list-header">
        <?php echo $search_query->found_posts.\' results found\'; ?>
    </div>

    <ul class="search-results-list">

    <?php
        $types = array( \'post\', \'page\', \'glossary\' );

        foreach( $types as $type ) : ?>

            <li class="search-results-post-type-item post-type-<?php echo $type ?>">

                <header class="post-type-header">
                    <h5 class="post-type-title">
                        <?php
                            $post_type_obj = get_post_type_object( $type );
                            echo $post_type_obj->labels->name
                        ?>
                    </h5>
                </header>

                <ul class="search-results-list">
                    <?php
                    while( $search_query->have_posts() ): $search_query->the_post();
                        if( $type == get_post_type() ) : ?>
                            <li class="search-results-list-item">
                                <h4 class="entry-title"><?php the_title();?></h4>
                            </li>
                        <?php
                        endif;
                    endwhile;
                    wp_reset_postdata();
                    ?>
                </ul>
            </li>

        <?php endforeach; ?>

    </ul>

<?php else:
    echo \'<div class="search-suggestions-no-results">
            <p>\' . __(\'Sorry, no results found\', \'text-domain\') . \'</p>
        </div>\';
endif;

2 个回复
SO网友:nmr

要避免没有结果的类型，您可以。

再过一次循环，计算每种类型的出现次数，返回的结果数量不多（每页只有10个）

  • 当您遇到第一篇文章时，显示类型标题（移至内部while 循环，我知道，可读性较低的代码）
  • 遍历循环一次，然后将帖子标题收集到分为不同类型的表中
    <ul class="search-results-list">
    <?php

    $types = array( \'post\', \'page\', \'glossary\' );
    $occurrences = [];
    while( $search_query->have_posts() )
    {
        $search_query->next_post();
        $type = $search_query->post->post_type;
        if ( !isset($occurrences[$type]) )
            $occurrences[$type] = 1;
        else
            $occurrences[$type] += 1;
    }
    rewind_posts();

    foreach( $types as $type ) : 

        if ( !isset($occurrences[$type]) )
            continue;
        ?>
        <li class="search-results-post-type-item post-type-<?php echo $type ?>">
            //
            // remaining code
            //
        </li>

    <?php endforeach; ?>
</ul>
    第二个选项
    $types = array( \'post\', \'page\', \'glossary\' );
foreach( $types as $type ) : 

    $type_header_printed = false;
    ?>
    <?php
    while( $search_query->have_posts() ): 
        $search_query->the_post();
        if( $type == get_post_type() ) :

            // -- post type header -----
            if ( !$type_header_printed ) : 

                $type_header_printed = true;
                ?>
                <li class="search-results-post-type-item post-type-<?php echo $type ?>">
                    <header class="post-type-header">
                        <h5 class="post-type-title">
                            <?php
                                $post_type_obj = get_post_type_object( $type );
                                echo $post_type_obj->labels->name
                            ?>
                        </h5>
                    </header>                    
                    <ul class="search-results-list">

            <?php // -- header end -----
            endif; ?>

            <li class="search-results-list-item">
                <h4 class="entry-title"><?php the_title();?></h4>
            </li>
        <?php

        endif;
    endwhile;
    rewind_posts();

    if ( $type_header_printed ) : ?>
            </ul>
        </li>
    <?php endif; ?>

<?php endforeach; ?>
    第三个选项
    <ul class="search-results-list">
    <?php

    $types = array( \'post\', \'page\', \'glossary\' );
    $posts_titles = [];
    while( $search_query->have_posts() )
    {
        $search_query->the_post();
        $type = $search_query->post->post_type;
        if ( !isset($posts_titles[$type]) )
            $posts_titles[$type] = [];

        $posts_titles[$type][] = get_the_title();
    }
    rewind_posts();

    foreach( $types as $type ) : 

        if ( !isset($posts_titles[$type]) )
            continue;
        ?>
        <li class="search-results-post-type-item post-type-<?php echo $type ?>">
            <header class="post-type-header">
                <h5 class="post-type-title">
                    <?php
                        $post_type_obj = get_post_type_object( $type );
                        echo $post_type_obj->labels->name
                    ?>
                </h5>
            </header>
            <ul class="search-results-list">

            <?php foreach( $posts_titles[$type] as $title ) : ?>
                <li class="search-results-list-item">
                    <h4 class="entry-title"><?php echo htmlspecialchars($title); ?></h4>
                </li>
            <?php endforeach; ?>

            </ul>
        </li>

    <?php endforeach; ?>
</ul>

    • SO网友:Samuel Esteban

    我也有同样的问题。

    我的解决方案：

    在$post_type 数组必须在WP_Query.

  • WP_Query 必须在foreach 声明

    <?php
    // Here, the Types
    $types = array( \'post\', \'page\', \'glossary\' );

    foreach( $types as $type ) :

    // Search Args better in a variable (for order purposes)
    $search_args = array(
            \'posts_per_page\'    => 10,
            \'s\'                 => esc_attr( $_POST[\'keyword\'] ),
            \'paged\'             => $paged,
            \'post_status\'       => \'publish\',
            \'post_type\'         => $type // This line was added
        );

    $search_query = new WP_Query($search_args);

    if( $search_query->have_posts() ) : ?>

    <div class="search-suggestions-list-header">
        <?php echo $search_query->found_posts.\' results found\'; ?>
    </div>

    <ul class="search-results-list">

        <li class="search-results-post-type-item post-type-<?php echo $type; ?>">

            <header class="post-type-header">
                <h5 class="post-type-title">
                    <?php
                        $post_type_obj = get_post_type_object($type);
                        echo $post_type_obj->labels->name;
                    ?>
                </h5>
            </header>

            <ul class="search-results-list">
                <?php
                while( $search_query->have_posts() ): $search_query->the_post();
                    if( $type == get_post_type() ) : ?>
                        <li class="search-results-list-item">
                            <h4 class="entry-title"><?php the_title();?></h4>
                        </li>
                    <?php
                    endif; // I think you\'ll need for style propouses
                endwhile;
                ?>
            </ul>
        </li>

    </ul>

<?php else:
    echo \'<div class="search-suggestions-no-results">
            <p>\' . __(\'Sorry, no results found\', \'text-domain\') . \'</p>
        </div>\';
endif;

wp_reset_postdata(); // Here goes the reset

endforeach; // End Foreach ?>
    希望有帮助。

    • 标签： custom-post-types   theme-development   loop   search   小码农  

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