按分类法在自定义 Post 类型中重复 Post

Question

我有一个名为 Products 的自定义 Post 类型（不是 WooCommerce）。用户使用 ACF 分类法字段选择类别。我正在尝试获取每个选定类别的每个产品，但有些产品属于多个类别，因此当我遍历行时，它们会打印多次。

<?php
$product_categories = get_field( 'product_filter_categories' );
$custom_taxonomy='product_category';  
$custom_terms = $product_categories;

foreach($custom_terms as $custom_term) :
    wp_reset_query();

    $args = array(
        'post_type' => 'product',
        'post_status' => 'publish',
        'tax_query' => array(               
            array(
                'taxonomy' => $custom_taxonomy,
                'field' => 'slug',
                'terms' => $custom_term->slug,
            ),
        ),
    );  

    $loop = new WP_Query($args);

    if($loop->have_posts()) :
        $product_coming_soon_image = get_field( 'product_coming_soon_image' );

        while($loop->have_posts()) : $loop->the_post();
            $termsArray = get_the_terms( $post->ID, "product_category" );

            $termsString = "";
            foreach ( $termsArray as $term ) {
                $termsString .= $term->slug.' ';
            } ?>

            <div class="<?php echo $termsString; ?> isotope-item">
                <a href="<?php the_permalink(); ?>">                            
                    <?php if ( has_post_thumbnail() ) :  ?>
                        <img src="<?php the_post_thumbnail_url('') ?>" class="lazy" alt="<?php the_title() ?>" loading="lazy" width="240" height="240">
                    <?php else : ?>
                        <img src="<?php echo esc_url( $product_coming_soon_image['sizes']['our-products'] ); ?>" alt="<?php echo esc_attr( $product_coming_soon_image['alt'] ); ?>" loading="lazy" width="240" height="240" />
                    <?php endif; ?>
                </a>
                <h3><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h3>
            </div>

            <?php
        endwhile; ?>

    <?php
    endif;
endforeach; ?>
</div>

我无法确定重复项的来源。

Answer 1

$product_categories = get_field( 'product_filter_categories' );
$custom_taxonomy='product_category';  
$custom_terms = $product_categories->term_id;

foreach($custom_terms as $custom_term) :
    

    $args = array(
        'post_type' => 'product',
        'post_status' => 'publish',
        'tax_query' => array(               
            array(
                'taxonomy' => $custom_taxonomy,
                'field' => 'term_id',
                'terms' => array($custom_terms),
                'operator' => 'IN',
            ),
        ),
    );  

    $loop = new WP_Query($args);

    if($loop->have_posts()) :
        $product_coming_soon_image = get_field( 'product_coming_soon_image',get_the_ID());

        while($loop->have_posts()) : $loop->the_post();
            $termsArray = get_the_terms( get_the_ID(), "product_category" );

            $termsString = "";
            foreach ( $termsArray as $term ) {
                $termsString .= $term->slug.' ';
            } ?>

            <div class="<?php echo $termsString; ?> isotope-item">
                <a href="<?php get_permalink(); ?>">                            
                    <?php if ( has_post_thumbnail() ) :  ?>
                        <img src="<?php the_post_thumbnail_url('') ?>" class="lazy" alt="<?php get_the_title() ?>" loading="lazy" width="240" height="240">
                    <?php else : ?>
                        <img src="<?php echo esc_url( $product_coming_soon_image['sizes']['our-products'] ); ?>" alt="<?php echo esc_attr( $product_coming_soon_image['alt'] ); ?>" loading="lazy" width="240" height="240" />
                    <?php endif; ?>
                </a>
                <h3><a href="<?php echo get_permalink()(); ?>"><?php get_the_title(); ?></a></h3>
            </div>

            <?php
        endwhile; wp_reset_query();?>

    <?php
    endif;
endforeach; ?>
</div>

Answer 2

好的，所以你正在做的是：

获得一些条件
按条件循环
按期限获取产品
循环显示产品

确实如此，如果一个产品与循环中的多个术语相关联，它们将以这种方式出现多次。

您应该删除第一个 foreach，并通过多个术语查询产品，然后在 wp_query 结果上循环。这样你就不会重复：

$args = array(
            'post_type' => 'product',
            'post_status' => 'publish',
            'tax_query' => array(
                array(
                    'taxonomy' => $custom_taxonomy,
                    'field' => 'slug',
                    'terms' => array_column($custom_term, 'slug'),
                ),
            ),
        );

如果您确实需要根据您的条件进行循环，并在每个循环中查询产品：您需要将所有查询的 post ID 存储在一个数组中，该数组是在循环外启动的。并将此 ID 数组“已查询”添加到查询“post not in: ids”。

Answer 3

我能够通过在第一个 foreach 之前创建一个空数组然后在循环时检查当前 post ID 是否在该数组中来删除重复项。如果当前 post id 不在数组中，将其添加到数组并显示产品。如果当前postid在数组中，则跳过。

更新代码

$product_categories = get_field( 'product_filter_categories' );
$custom_taxonomy = 'product_category';
$custom_terms = $product_categories;
$displayed_products = array();

foreach($custom_terms as $custom_term) :
    wp_reset_query();

    $args = array(
        'post_type' => 'product',
        'post_status' => 'publish',
        'tax_query' => array(
            array(
                'taxonomy' => $custom_taxonomy,
                'field' => 'slug',
                'terms' => $custom_term->slug,
            ),
        ),
    );  

    $loop = new WP_Query($args);

    if($loop->have_posts()) :
        $product_coming_soon_image = get_field( 'product_coming_soon_image' );

        while($loop->have_posts()) : $loop->the_post();
            if(!in_array( $post->ID, $displayed_products )) :
                $termsArray = get_the_terms( $post->ID, "product_category" );

                $termsString = "";
                foreach ( $termsArray as $term ) {
                    $termsString .= $term->slug.' ';
                } ?>

                <div class="<?php echo $termsString; ?> isotope-item">
                    <a href="<?php the_permalink(); ?>">
                        <?php if ( has_post_thumbnail() ) :  ?>
                            <img src="<?php the_post_thumbnail_url('') ?>" class="lazy" alt="<?php the_title() ?>" loading="lazy" width="240" height="240">
                        <?php else : ?>
                            <img src="<?php echo esc_url( $product_coming_soon_image['sizes']['our-products'] ); ?>" alt="<?php echo esc_attr( $product_coming_soon_image['alt'] ); ?>" loading="lazy" width="240" height="240" />
                        <?php endif; ?>
                    </a>
                    <h3><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h3>
                </div>

                <?php
                array_push( $displayed_products, $post->ID );
            endif;
        endwhile; ?>

    <?php
    endif;
endforeach; ?>
'''

按分类法在自定义 Post 类型中重复 Post

Duplicate Posts In Custom Post Type by Taxonomy

php

wordpress

woocommerce