Question

我在报价中添加了最高价的列。然后，我想对其进行排序。我已经准备好了：

// asl这将在产品列表中添加额外的列

add_filter( 'manage_edit-product_columns', array($this,'show_product_offers_amounts'),15 );
add_action( 'manage_product_posts_custom_column', array($this,'show_product_offers_amount_max'), 10, 2 );

// asl显示列

function show_product_offers_amounts($columns){
    $columns['orig_offer_amount'] = 'Amount';
    return $columns;
 }

// asl将数据添加到列

function show_product_offers_amount_max( $column, $postid ) {            
    global $wpdb;
    if ( $column == 'orig_offer_amount' ) {
        $offers_max = $wpdb->get_var( " select max(meta_value)
                        from ".$wpdb->postmeta."
                        where meta_key='orig_offer_amount'
                            and meta_value!=''
                            and post_id in(
                                select p.post_id
                                from ".$wpdb->postmeta." as p
                                where p.meta_key='orig_offer_product_id' and
                                    p.meta_value=".$postid.")" 
                   );

        if($offers_max > 0){
            echo '<mark style="color: #3973aa;font-size: 13px;font-weight: 500;background: 0 0;line-height: 1;">'.$offers_max.'</mark>';
        }
        else{
            echo '<span class="na">–</span>';
        }
    }

}

// asl将列注册为可排序

function price_column_register_sortable( $columns ) {
    $columns['orig_offer_amount'] = 'orig_offer_amount';

    return $columns;
}
add_filter( 'manage_edit-product_sortable_columns', 'price_column_register_sortable' );
function price_column_orderby( $vars ) {
    if ( isset( $vars['orderby'] ) && 'price' == $vars['orderby'] ) {

        $offers_max = $wpdb->get_var( " select max(meta_value)
                        from ".$wpdb->postmeta."
                        where meta_key='orig_offer_amount'
                            and meta_value!=''
                            and post_id in(
                                select p.post_id
                                from ".$wpdb->postmeta." as p
                                where p.meta_key='orig_offer_product_id' and
                                    p.meta_value=".$postid.")" 
                   );

        if($offers_max > 0){
            $offers_max = $offers_max;
        }
        else{
            $offers_max = 0;;
        }                   


        $vars = array_merge( $vars, array(
            'meta_key' => 'orig_offer_amount',
            'orderby' => $offers_max
        ) );
    }

    return $vars;
}
add_filter( 'request', 'price_column_orderby' );

此代码使wordpress将该列识别为可排序的。但这排序不正确。

有什么主意吗？

根据LoicTheAztec的建议，我准备了以下内容：

add_action( 'save_post', 'new_postmeta_to_products' );
function new_postmeta_to_products($post_id){
    $post_type = get_post_type($post_id);

    if($post_type == 'products') {

        global $wpdb;
        $maxId = $wpdb->get_var( " select post_id
                                from ".$wpdb->postmeta."
                                where meta_key='orig_offer_amount'
                                    and meta_value!=''
                                    and post_id in(
                                        select p.post_id
                                        from ".$wpdb->postmeta." as p
                                        where p.meta_key='orig_offer_product_id' and
                                            p.meta_value=".$post_id.")
                                    order by meta_value desc limit 1" 
                           );    

        add_post_meta($post_id,'offer_max_id',$maxId);
    }
}

但是它不起作用:(也许是因为$ post_id

Answer 1

由于LoicTheAztec的提示，我已经准备了一些代码段。首先，我创建了产品时添加了新的postmeta：

add_post_meta($post_id, 'offers_max_id', null);
add_post_meta($post_id, 'offers_max_value', null);
add_post_meta($post_id, 'offers_count', null);

然后，在功能new_offer_form_submit（）中的www / wp-content / plugins / offers-for-woocommerce / public / class-offers-for-woocommerce.php中创建要约时，需要几行设置新的postmeta：

global $post;
$_product = get_post_meta($parent_post_id, 'offer_product_id', true);

global $wpdb;
$offerMax = $wpdb->get_results( " select post_id, meta_value
                        from ".$wpdb->postmeta."
                        where meta_key='orig_offer_amount'
                            and meta_value!=''
                            and post_id in(
                                select p.post_id
                                from ".$wpdb->postmeta." as p
                                where p.meta_key='orig_offer_product_id' and
                                    p.meta_value=".$_product.")
                            order by meta_value desc limit 1" 
                   ,ARRAY_N);    
update_post_meta($_product, 'offers_max_id', $offerMax[0][0]);
update_post_meta($_product, 'offers_max_value', $offerMax[0][1]);

 $offerCount = $wpdb->get_var( "select count(post_id) 
                                 from ".$wpdb->postmeta." 
                                 where meta_key='orig_offer_product_id' and
                                     meta_value=".$_product
                             );
 update_post_meta($_product, 'offers_count', $offerCount);

然后，我们必须在function.php中为产品的管理面板添加新列：

// asl show the column
function my_cpt_columns( $columns ) {
    $columns["offermaxid"] = "OfferId";
    $columns["offercount"] = "Offers";
    $columns["offermaxvalue"] = "Amount";
    $columns["dateofend"] = "EndTime";
    return $columns;
}
add_filter('manage_edit-product_columns', 'my_cpt_columns');

// asl take a data to the column
function my_cpt_column( $colname, $cptid ) {
     if ( $colname == 'offermaxid')
          echo get_post_meta( $cptid, 'offers_max_id', true );
     if ( $colname == 'offercount')
          echo get_post_meta( $cptid, 'offers_count', true );       
     if ( $colname == 'offermaxvalue')
          echo get_post_meta( $cptid, 'offers_max_value', true );        
     if ( $colname == 'dateofend')
          echo date("j M y H:i:s", (get_post_meta( $cptid, '_sale_price_dates_to', true )+60*60) );
     if ( $colname == 'offerlefttime') {
          $atime = time();
          $d = (get_post_meta( $cptid, '_sale_price_dates_to', true ) - $atime)/(60*60*24);
          $h = ( get_post_meta( $cptid, '_sale_price_dates_to', true ) - $atime - ( (60*60*24) * explode(".", $d)[0] ) )/(60*60);
          $m = ( get_post_meta( $cptid, '_sale_price_dates_to', true ) - $atime - ( (60*60*24) * explode(".", $d)[0] ) - ( (60*60) * explode(".", $h)[0] ) )/(60);
          echo floor($d) . "d " . floor($h) . "h " . floor($m) . "m";
     }
}
add_action('manage_product_posts_custom_column', 'my_cpt_column', 10, 2);

// asl sortowanie
add_filter('manage_edit-product_sortable_columns', 'my_cpt_columns');
function my_sort_metabox( $vars ) {
      if( array_key_exists('orderby', $vars )) {
           if('OfferId' == $vars['orderby']) {
                $vars['orderby'] = 'meta_value';
                $vars['meta_key'] = 'offers_max_id';
           }
           if('Offers' == $vars['orderby']) {
                $vars['orderby'] = 'meta_value';
                $vars['meta_key'] = 'offers_count';
           }      
           if('Amount' == $vars['orderby']) {
                $vars['orderby'] = 'meta_value';
                $vars['meta_key'] = 'offers_max_value';
           }              
          if('EndTime' == $vars['orderby']) {
                $vars['order'] = 'ASC';
                $vars['orderby'] = 'meta_value';
                $vars['meta_key'] = '_sale_price_dates_to';
           }    
      }
      return $vars;
}
add_filter('request', 'my_sort_metabox');

// asl dodanie kolumny wynikowej z czasem do końca
function my_cpt_column_time( $columns ) {
    $columns["offerlefttime"] = "LeftTime";
    return $columns;
}
add_filter('manage_edit-product_columns', 'my_cpt_column_time');

一切都很好，但只有一件事行不通。我想按“ EndTime” ASC列对产品进行排序。有什么建议吗？

使列在Woocommerce的管理产品列表面板中可排序

1 个答案: