权限没有,则隐藏 function forum_list_access_filter($forumlist, $gid, $allow = 'allowread') { global $grouplist; if (empty($forumlist)) return array(); if (1 == $gid) return $forumlist; $forumlist_filter = $forumlist; $group = $grouplist[$gid]; foreach ($forumlist_filter as $fid => $forum) { if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) { unset($forumlist_filter[$fid]); } unset($forumlist_filter[$fid]['accesslist']); } return $forumlist_filter; } function forum_filter_moduid($moduids) { $moduids = trim($moduids); if (empty($moduids)) return ''; $arr = explode(',', $moduids); $r = array(); foreach ($arr as $_uid) { $_uid = intval($_uid); $_user = user_read($_uid); if (empty($_user)) continue; if ($_user['gid'] > 4) continue; $r[] = $_uid; } return implode(',', $r); } function forum_safe_info($forum) { //unset($forum['moduids']); return $forum; } function forum_filter($forumlist) { foreach ($forumlist as &$val) { unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']); } return $forumlist; } function forum_format_url($forum) { global $conf; if (0 == $forum['category']) { // 列表URL $url = url('list-' . $forum['fid'], '', FALSE); } elseif (1 == $forum['category']) { // 频道 $url = url('category-' . $forum['fid'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = url('read-' . trim($forum['brief']), '', FALSE); } if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) { if (0 == $forum['category'] || 1 == $forum['category']) { $url = url($forum['well_alias'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE); } } return $url; } function well_forum_alias() { $forumlist = forum_list_cache(); if (empty($forumlist)) return ''; $key = 'forum-alias'; static $cache = array(); if (isset($cache[$key])) return $cache[$key]; $cache[$key] = array(); foreach ($forumlist as $val) { if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias']; } return array_flip($cache[$key]); } function well_forum_alias_cache() { global $conf; $key = 'forum-alias-cache'; static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存,跨进程需要再加一层缓存:redis/memcached/xcache/apc if (isset($cache[$key])) return $cache[$key]; if ('mysql' == $conf['cache']['type']) { $arr = well_forum_alias(); } else { $arr = cache_get($key); if (NULL === $arr) { $arr = well_forum_alias(); !empty($arr) AND cache_set($key, $arr); } } $cache[$key] = empty($arr) ? '' : $arr; return $cache[$key]; } ?>plugin development - WP ajax requests not stacking?
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plugin development - WP ajax requests not stacking?

programmeradmin9浏览0评论

My ajax requests work individually, (if I wait for each request to return before submitting the next), but if I submit a bunch of requests at the same time, (eg click multiple buttons), only the last action returns a response. It's like each request is overwriting/cancelling out the previous one.

I am using WP's admin-ajax.php, like so:

<?php
$nonce = wp_create_nonce("my_nonce");

$link = admin_url('admin-ajax.php?action=add_item&post_id='.$post->ID.'&nonce='.$nonce);
echo '<a class="add_item" data-action="add_item" data-nonce="' . $nonce . '" data-post_id="' . $post->ID . '" href="' . $link . '">add item</a>';
?>

(I have several of these with different post->IDs on a page, but the nonce is only set once and is the same for the whole page).

And then some JS like this:

$(".prod_btns a").click(function(e) {
    e.preventDefault(); 
    var action = $(this).data("action");
    var post_id = $(this).data("post_id");
    var nonce = $(this).data("nonce");

    $.ajax({
        type : "post",
        dataType : "json",
        url : myAjax.ajaxurl,
        data : {action: action, post_id : post_id, nonce: nonce},
        success: function(response) {
            if(response.type == "success") {
                alert( "success" );
            } else {
                alert( "fail" );
            }
        }
    });
    return false;
});

... and a receiving function like so:

add_action( 'wp_ajax_add_item', 'add_item_funct');
function add_item_funct() {
  if ( !wp_verify_nonce( $_REQUEST['nonce'], 'my_nonce' ) ) {
    exit( "Ajax authentication failed!" );
  }
  // do some stuff...

  $result['type'] = "success";

  if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    $result = json_encode($result);
    echo $result;
  } else {
    header("Location: ".$_SERVER["HTTP_REFERER"]);
  }
  die();
}

This all works fine if you click only 1 link and wait for it to return "success", then click the next, but if you click multiple "add item" links simultaneously, only the last one returned a success message.

What am I missing? Thanks for taking the time...

My ajax requests work individually, (if I wait for each request to return before submitting the next), but if I submit a bunch of requests at the same time, (eg click multiple buttons), only the last action returns a response. It's like each request is overwriting/cancelling out the previous one.

I am using WP's admin-ajax.php, like so:

<?php
$nonce = wp_create_nonce("my_nonce");

$link = admin_url('admin-ajax.php?action=add_item&post_id='.$post->ID.'&nonce='.$nonce);
echo '<a class="add_item" data-action="add_item" data-nonce="' . $nonce . '" data-post_id="' . $post->ID . '" href="' . $link . '">add item</a>';
?>

(I have several of these with different post->IDs on a page, but the nonce is only set once and is the same for the whole page).

And then some JS like this:

$(".prod_btns a").click(function(e) {
    e.preventDefault(); 
    var action = $(this).data("action");
    var post_id = $(this).data("post_id");
    var nonce = $(this).data("nonce");

    $.ajax({
        type : "post",
        dataType : "json",
        url : myAjax.ajaxurl,
        data : {action: action, post_id : post_id, nonce: nonce},
        success: function(response) {
            if(response.type == "success") {
                alert( "success" );
            } else {
                alert( "fail" );
            }
        }
    });
    return false;
});

... and a receiving function like so:

add_action( 'wp_ajax_add_item', 'add_item_funct');
function add_item_funct() {
  if ( !wp_verify_nonce( $_REQUEST['nonce'], 'my_nonce' ) ) {
    exit( "Ajax authentication failed!" );
  }
  // do some stuff...

  $result['type'] = "success";

  if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    $result = json_encode($result);
    echo $result;
  } else {
    header("Location: ".$_SERVER["HTTP_REFERER"]);
  }
  die();
}

This all works fine if you click only 1 link and wait for it to return "success", then click the next, but if you click multiple "add item" links simultaneously, only the last one returned a success message.

What am I missing? Thanks for taking the time...

Share Improve this question edited Sep 15, 2020 at 10:08 Neil Hillman asked Sep 13, 2020 at 14:14 Neil HillmanNeil Hillman 1831 silver badge9 bronze badges 1
  • 1 If you haven't already I'd try watching the requests in your browser's debug window to see if you can see them complete there - i.e. they are completing fine but JavaScript it losing the notification? - or if they time out on the network; and I'd add error-log trace to the function in WordPress and watch the site's error log to try and work out what's happening there too. – Rup Commented Sep 15, 2020 at 16:44
Add a comment  | 

1 Answer 1

Reset to default 1

@Rup's comment above led me to the answer; my wp-ajax request was functioning fine, but my incomplete understanding of jquery's $(this) selector meant that I was targeting the last item clicked with the success response each time. This question can now be closed.

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