从 wordpress 自定义查询中排除重复的帖子

Question

我正在为主页构建一个模板，该模板在顶部显示 4 个最新帖子，并且在页面周围按类别划分了一些帖子组（我正在使用 get_posts 执行查询）。

我想做的是从这些类别的帖子中排除任何已经出现在最新四则新闻中的帖子。

我想我应该得到这四个帖子 ID 并在“类别”查询中使用“post__not_in”参数，但我无法让它工作。

你有什么提示吗？

这是代码：

// First query: I get last four posts

$args = array(

    'post_type'        => 'post',
    'post_status'      => 'publish',
    'numberposts'           => 4

);

// In my dreams, this should be the array of post IDs

$ids->query_vars['page_id'];

// Second query: I get 5 posts for a given categoory and exclude posts with IDs from first query

$query = new WP_Query($args);

$args2 = array(

    'numberposts'   => 5,
    'category'         => 15,
    'orderby'          => 'post_date',
    'order'            => 'DESC',
    'post__not_in' => $ids

);
$query2 = new WP_Query($args2);

$primaposizione = get_posts( $args2 );
foreach ( $primaposizione as $post ) : setup_postdata( $post );

... do the stuff ...

endforeach;
wp_reset_postdata();

更新

<?php
    $args = array(
    'post_type'        => 'post',
    'post_status'      => 'publish',
    'orderby'          => 'post_date',
    'order'            => 'DESC',
    'posts_per_page'           => 4
    );

    $query = new WP_Query($args);
    $excludeID = array();
    while ( $query->have_posts() ) : $query->the_post();
    $excludeID = $post->ID;
    endwhile;

        $args = array(
            'posts_per_page'   => 1,
            'orderby'          => 'post_date',
            'order'            => 'DESC',
                    'category'         => 15,
            'post_type'        => 'post',
            'post_status'      => 'publish',
            'post__not_in' => array($excludeID)
        );

        $primaposizione = get_posts( $args );
        foreach ( $primaposizione as $post ) : setup_postdata( $post );
        $category = get_the_category();
        $slug = $category[0]->category_nicename ;
        $esteso = $category[0]->cat_name;
        if(has_post_thumbnail()) { ?>
            <span class="hidden-xs"><a href="<?php the_permalink(); ?>"><?php the_post_thumbnail('bones-thumb-300', array('class' => 'img-responsive')) ?></a></span>
            <?php } ?>
            <h3 class="ellipsis"><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h3>
            <?php the_excerpt();?>
        <?php endforeach;
    wp_reset_postdata();
?>

Answer 1

您尝试选择 ID 的方式行不通。您必须先调用 wp_query。我认为这应该可行：

$args = array(
    'post_type'        => 'post',
    'post_status'      => 'publish',
    'numberposts'           => 4
);

$query = new WP_Query($args);
$excludeID = array();

while ( $query->have_posts() ) : $query->the_post(); ?>
     $excludeID[] = $post->ID;       // forgot the brackets
     // do stuff
endwhile;

(...)