Question

我在自定义帖子类型中有4个文本字段类型，分别是brand_fbn，model_fbn，year_fbn和plate_number。我希望按brand_fbn - model_fbn - year_fbn - plate_number对帖子进行排序。但我坚持这一点，

这是我的代码（错误）

                        $ins = new WP_Query(array(
                            "post_type" =>      "application-list",
                            "author"    =>      $current_user->ID,
                            "meta_key"      =>  array("year_fbn","plate_number"),
                            "orderby"       =>  "meta_value ",
                            "order"         =>  "ASC"
                        ));

我知道这条线不会工作，"meta_key"=>array("year_fbn","plate_number"),有人可以帮助我。谢谢

Answer 1

您需要查询元字段，以便在JOIN内WP_Query进行编辑，然后使用posts_orderby过滤器按照这些元字段对结果进行排序 - 别名使用格式为mt1.meta_value。

// Function to replace the order by clause in the SQL generated by WP_Query
function custom_order_by( $order_by ){
    return str_replace( 
        'menu_order', 
        'mt1.meta_value, mt2.meta_value, mt3.meta_value, mt4.meta_value',
        $order_by 
    );
}

// args for WP_Query
$args = array(
    "post_type"   => "application-list",
    "author"      => $current_user->ID,
    "meta_query"  => array(
        array( 
            "key"     => "brand_fbn", 
            "compare" => "LIKE",
            "value"   => ""
        ),
        array( 
            "key"     => "model_fbn", 
            "compare" => "LIKE",
            "value"   => ""
        ),
        array( 
            "key"     => "year_fbn", 
            "compare" => "LIKE",
            "value"   => ""
        ),
        array( 
            "key"     => "plate_number", 
            "compare" => "LIKE",
            "value"   => ""
        )
    )
);

// add filter to modify order by clause
add_filter( 'posts_orderby', 'custom_order_by' );
// run the WP_Query
$ins = new WP_Query( $args );
// remove the filter so that other queries aren't affected.
remove_filter( 'posts_orderby', 'custom_order_by' );

通过多个自定义字段acf自定义帖子类型中的帖子

1 个答案: