WordPress的两个循环排除职位

时间:2019-02-19 18:58:14

标签: wordpress

我正在使用两个循环查询:

<?php
                // show all coupons marked Top Coupon

                query_posts(array(
                        'post_type' => APP_POST_TYPE, 
                        'post_status' => 'publish',
                        'meta_key' => 'clpr_topcoupon',
                        'meta_value'=> 1,
                        APP_TAX_STORE => $term->slug, 
                        'ignore_sticky_posts' => 1, 
                        'posts_per_page' => 1
                ));
                ?>  

                <?php get_template_part( 'loop3', 'coupon' ); ?>    

                <?php

                    query_posts( array(
                        'post_type' => APP_POST_TYPE,
                        'post_status' => 'publish',
                        APP_TAX_STORE => $term->slug,
                        'ignore_sticky_posts' => 1,
                        'posts_per_page' => -1,
                        'meta_query' => array(
                        'relation' => 'OR',
                            array(
                            'key'     => 'clpr_excoupon',
                            'compare' => 'NOT EXISTS'
                            ),
                            array(
                            'key'     => 'clpr_excoupon',
                            'compare' => '!=',
                            'value'   => '1'
                            ),
                        ),
                    ) );
                ?>

            <?php get_template_part( 'loop1', 'coupon' ); ?>

现在,我不想在第二个循环中显示第一个循环中的第一个帖子。我尝试过get_the_ID();,但是如果此人没有'meta_key' => 'clpr_topcoupon',则缺少一条信息。我如何从第一篇博文中获得get_the_ID();,但前提是它只有'meta_key' => 'clpr_topcoupon'

1 个答案:

答案 0 :(得分:0)

wordpress文档建议您尽可能避免使用query_posts

  

注意:此功能将完全覆盖主查询,并且不适合插件或主题使用。它过于简单的修改主查询的方法可能会出现问题,应尽可能避免。

相反,我们可以使用WP_Query。我们将使用第一个循环来存储帖子ID,并在第二个循环中对其进行检查。也许是这样的:

<?php 
//set parameters for First query
$args = array('post_type' => APP_POST_TYPE, 
                    'post_status' => 'publish',
                    'meta_key' => 'clpr_topcoupon',
                    'meta_value'=> 1,
                    APP_TAX_STORE => $term->slug, 
                    'ignore_sticky_posts' => 1, 
                    'posts_per_page' => 1 ); 
$first_query = new WP_Query($args); // create query
$post_id = 0;
//initialize loop for custom query like this
if ($first_query->have_posts() ) {
    while ($first_query->have_posts() ) {
        $first_query->the_post();
        $post_id = $post->ID; //store post ID outside of loop
        get_template_part( 'loop3', 'coupon' ); 
    } 
} 
wp_reset_postdata();
//setup second query
$args = array( //excludes post from query by ID See Bill erikson for complete list of WP_Query() arguements
                    'post__not_in' => array($post_id), 
                    'post_type' => APP_POST_TYPE,
                    'post_status' => 'publish',

                    APP_TAX_STORE => $term->slug,
                    'ignore_sticky_posts' => 1,
                    'posts_per_page' => -1,
                    'meta_query' => array(
                        'relation' => 'OR',
                            array(
                                 'key'     => 'clpr_excoupon',
                                 'compare' => 'NOT EXISTS'
                             ),
                             array(
                                 'key'     => 'clpr_excoupon',
                                 'compare' => '!=',
                                 'value'   => '1'
                            )
                    )
              );
$second_query = new WP_Query($args);
if ($second_query->have_posts() ) {
    while ($second_query->have_posts() {
        $second_query->the_post();
        get_template_part( 'loop1', 'coupon' );
   }
}
wp_reset_postdata();

希望此代码能够为您提供帮助。如您所见,WP_Query接受参数'post__not_in',该参数采用页面ID的数组并将其从查询中排除。我们从第一个查询中检索了ID,并在第二个查询的参数中对其进行了引用。我还提供了wp_reset_postdata,如果您正在运行多个查询,则值得一看。

祝您好运!

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