Question

更新：我的用于处理响应的ajax函数是正确的，但是我很难遍历响应对象并填充选择字段。我已尝试使用for循环而不是每个（）并且工作得更好但是选择字段填充了＆＃34; undefined＆＃34;。有什么想法吗？

以下是我的Jquery代码

jQuery(document).ready(function() {
    // Avoid conflicts
    $ = jQuery;

    $('#nomoi-select').change(function() {
        var nomos_name = $('#nomoi-select option:selected').attr('id');
        var jsonMimeType = "application/json;charset=UTF-8";

        type = 'POST';
        data = { 'parent_id': nomos_name, action : 'get_child_categories' };
        dataType = 'json';
        contentType = "application/json; charset=utf-8";
        processData = false;
        $.post( ajaxurl, data, function(response) {
            if( response ){
                console.log(response);
                var content = '';

                var data = JSON.stringify(response);
                $(data).each(function(key, value) {
                    content += '<option>' + value + '</option>';
                });
                $(content).appendTo("#town-select");
            }
        });
    }).change();
});

我的ajax功能：

function get_child_categories() {

  if (isset($_POST['parent_id'])) {
    $parent_id = ($_POST['parent_id']);
    $result = array();

    $args = array(
      'post_type' => 'seller',
      'order_by' => 'name',
      'hide_empty' => 0,
      'exclude' => 1,
      'taxonomy' => 'nomos',
      'hierarchical' => 1,
      'child_of' => $parent_id
    );

    $categories =  get_categories( $args );
    foreach ( $categories as $cat ) {

      $result = array(
        'town_id' => $cat->cat_ID,
        'town_name' => $cat->cat_name
      );
      echo json_encode($result);
    }
  }
  die();
}


add_action('wp_ajax_get_child_categories', 'get_child_categories');
add_action('wp_ajax_nopriv_get_child_categories', 'get_child_categories');

OnChange工作正常，我从日志中得到以下输出：

{"town_id":"41","town_name":"\u0391\u0393\u0393\u0395\u039b\u039f\u039a\u0391\u03a3\u03a4\u03a1\u039f"}{"town_id":"42","town_name":"\u0391\u0393\u03a1\u0399\u039d\u0399\u039f"}{"town_id":"40","town_name":"\u0391\u0399\u03a4\u03a9\u039b\u0399\u039a\u039f"}{"town_id":"84","town_name":"\u0391\u039b\u03a5\u0396\u0399\u0391"}{"town_id":"85","town_name":"\u0391\u039c\u03a6\u0399\u039b\u039f\u03a7\u0399\u0391"}{"town_id":"86","town_name":"\u0391\u039d\u0391\u039a\u03a4\u039f\u03a1\u0399\u039f"}{"town_id":"87","town_name":"\u0391\u039d\u03a4\u0399\u03a1\u03a1\u0399\u039f"}{"town_id":"88","town_name":"\u0391\u03a0\u039f\u0394\u039f\u03a4\u0399\u0391"}{"town_id":"89","town_name":"\u0391\u03a1\u0391\u039a\u03a5\u039d\u0398\u039f\u03a3"}{"town_id":"90","town_name":"\u0391\u03a3\u03a4\u0391\u039a\u039f\u03a3"}{"town_id":"91","town_name":"\u0398\u0395\u03a1\u039c\u039f"}{"town_id":"92","town_name":"\u0398\u0395\u03a3\u03a4\u0399\u0395\u03a9\u039d"}{"town_id":"93","town_name":"\u0399\u0395\u03a1\u0391\u03a3 \u03a0\u039f\u039b\u0397\u03a3 \u039c\u0395\u03a3\u039f\u039b\u039f\u0393\u0393\u0399\u039f\u03a5"}{"town_id":"94","town_name":"\u0399\u039d\u0391\u03a7\u039f\u03a5"}{"town_id":"95","town_name":"\u039c\u0391\u039a\u03a1\u03a5\u039d\u0395\u0399\u0391\u03a3"}{"town_id":"96","town_name":"\u039c\u0395\u0394\u0395\u03a9\u039d\u039f\u03a3"}{"town_id":"97","town_name":"\u039c\u0395\u039d\u0399\u0394\u0399\u039f\u03a5"}{"town_id":"98","town_name":"\u039d\u0391\u03a5\u03a0\u0391\u039a\u03a4\u039f\u03a5"}{"town_id":"99","town_name":"\u039d\u0395\u0391\u03a0\u039f\u039b\u0397\u03a3"}{"town_id":"100","town_name":"\u039f\u0399\u039d\u0399\u0391\u0394\u03a9\u039d"}{"town_id":"101","town_name":"\u03a0\u0391\u039b\u0391\u0399\u03a1\u039f\u03a5"}{"town_id":"102","town_name":"\u03a0\u0391\u039d\u0391\u0399\u03a4\u03a9\u039b\u0399\u039a\u039f\u03a5"}{"town_id":"103","town_name":"\u03a0\u0391\u03a1\u0391\u0392\u039f\u039b\u0391\u03a3"}{"town_id":"104","town_name":"\u03a0\u0391\u03a1\u0391\u039a\u0391\u039c\u03a0\u03a5\u039b\u0399\u03a9\u039d"}{"town_id":"105","town_name":"\u03a0\u039b\u0391\u03a4\u0391\u039d\u039f\u03a5"}{"town_id":"106","town_name":"\u03a0\u03a5\u039b\u039b\u0397\u039d\u0397\u03a3"}{"town_id":"107","town_name":"\u03a3\u03a4\u03a1\u0391\u03a4\u039f\u03a5"}{"town_id":"108","town_name":"\u03a6\u03a5\u03a4\u0395\u0399\u03a9\u039d"}{"town_id":"109","town_name":"\u03a7\u0391\u039b\u039a\u0395\u0399\u0391\u03a3"}

Answer 1

接受Tom Kriek的暗示：

你总是可以在php中构建所有标签脚本，然后将其返回给函数。这可以节省您的迭代次数它在ajax方面。所有你需要做的就是坚持html 正确的位置。即在选择标记中。

我在JQuery响应中使用了$(#town-select).html(response);并且工作得很好。大家好！

无法在Wordpress中使用AJAX填充选择字段 - 更新

1 个答案: