我试图增加wp_user_meta 表，利用重力形式。我一点运气都没有。我正在研究这个版本gform_pre_submission （虽然没有类嗅探），但我想在提交后这样做，因为会涉及贝宝，在付款验证之前不想发布。

我试图使用cssClass作为过滤器，以便其他开发人员可以自由创建任意多个gravity表单，只要他们使用这些类product_name 和product_price

不幸的是，我的数据库现在刚刚充满了故障。

// hook onto gravity forms and update payment history field
add_action(\'gform_after_submission\', \'payment_history_handler\', 10, 2);
function payment_history_handler($entry, $form){

$current_user = wp_get_current_user();
$payment_history = get_user_meta($current_user->ID, \'payment_history\', true);

foreach($form[\'fields\'] as &$field){
    if(strpos($field[\'cssClass\'], \'payment_name\') === true){
        $payment_name = $entry[$field[\'id\']];;
    } else {
        $payment_name = \'fail\';
    }
    if(strpos($field[\'cssClass\'], \'payment_price\') === true){
        $payment_price = $entry[$field[\'id\']];
    } else {
        $payment_price = 1;
    }
}

if(!empty($payment_name) && !empty($payment_price)){
    $payment_history[] = array(\'date\' => date(\'U\'), \'name\' => $payment_name, \'price\' => $payment_price);
    update_user_meta($current_user->ID, \'payment_history\', $payment_history);
}

}

<div class=\'gform_body\'>
  <ul id=\'gform_fields_4\' class=\'gform_fields top_label description_below\'>
    <li id=\'field_4_1\' class=\'gfield    payment_name           gfield_contains_required\' >
      <label class=\'gfield_label\' for=\'input_4_1\'>What Thing are you choosing?<span class=\'gfield_required\'>*</span></label>
      <div class=\'ginput_container\'>
        <select name=\'input_1\' id=\'input_4_1\'  class=\'medium gfield_select\' tabindex=\'1\' >
          <option value=\'The first one\' >The first one</option>
          <option value=\'The second one\' >The second one</option>
          <option value=\'The third one\' >The third one</option>
        </select>
      </div>
    </li>
    <li id=\'field_4_2\' class=\'gfield    payment_price           gfield_contains_required\' >
      <label class=\'gfield_label\' for=\'input_4_2\'>Price<span class=\'gfield_required\'>*</span></label>
      <div class=\'ginput_container\'>
        <input name=\'input_2\' id=\'input_4_2\' type=\'text\'  value=\'\' class=\'medium\' tabindex=\'2\'   />
      </div>
    </li>
  </ul>
</div>