重力表单/下拉字段 - 无效提交后的空下拉列表

时间:2018-06-12 10:40:56

标签: php wordpress populate gravityforms wordpress-hook

我有以下代码填充动态下拉字段:

add_filter( 'gform_pre_render_1', 'populate_dates' );
add_filter( 'gform_pre_validation_1', 'populate_dates' );
add_filter( 'gform_pre_submission_filter_1', 'populate_dates' );
add_filter( 'gform_admin_pre_render_1', 'populate_dates' );

function populate_dates( $form ) {
  $post_id = ibs_id();
  foreach ( $form['fields'] as &$field ) {
    if ( $field->type != 'select' || strpos( $field->cssClass, 'populate-dates' ) === false ) {
        continue;
    }
    $the_date = array();
    $DatesArr = array();
    for($i=0;$i<20;$i++) 
    {
      $the_date[$i] = get_post_meta($post_id, 'date' . $i);
     if(!empty($the_date[$i])) 
     {        array_push($DatesArr, $the_date[$i][0]); }
    }
    $choices = array();
    foreach ( $DatesArr as $Date ) {
      $choices[] = array( 'text' => $Date, 'value' => $Date);
    }
    $field->choices = $choices;
  }
    return $form;
}

我使用post方法使用函数ibs_id获取帖子的id。该功能工作正常,但当我点击提交时输入无效(例如我没有填写必填字段),下拉选项正在消失。

我必须提到其他用ibs_id函数动态填充以获取帖子ID的字段仍然填写。

1 个答案:

答案 0 :(得分:0)

您需要使用isSelected将其保留为已选中状态。检查以下完整代码。

 function populate_dates( $form ) {
          $post_id = ibs_id();
          foreach ( $form['fields'] as &$field ) {
            if ( $field->type != 'select' || strpos( $field->cssClass, 'populate-dates' ) === false ) {
                continue;
            }
            $the_date = array();
            $DatesArr = array();
            for($i=0;$i<20;$i++) 
            {
              $the_date[$i] = get_post_meta($post_id, 'date' . $i);
             if(!empty($the_date[$i])) 
             {        array_push($DatesArr, $the_date[$i][0]); }
            }
            $choices = array();
            foreach ( $DatesArr as $Date ) {
               $isselected=false;
               if($_POST['input_'.$field->id]==$Date)   $isselected=true;
              $choices[] = array( 'text' => $Date, 'value' => $Date,'isSelected' => $isselected );
            }
            $field->choices = $choices;
          }
            return $form;
        }