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]; } ?>javascript - Cannot read property 'helpers' of undefined - Stack Overflow
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javascript - Cannot read property 'helpers' of undefined - Stack Overflow

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Meteor came out of beta, and I am very excited to use it. I installed it on my windows machine (from /) and created an app. Here's the code:

html:

<!-- simple-todos.html -->
<head>
  <title>Todo List</title>
</head>

<body>
  <div class="container">
    <header>
      <h1>Todo List</h1>
    </header>

    <ul>
      {{#each tasks}}
        {{> task}}
      {{/each}}
    </ul>
  </div>
</body>

<template name="task">
  <li>{{text}}</li>
</template>

javascript:

// simple-todos.js
if (Meteor.isClient) {
  // This code only runs on the client
  Template.body.helpers({
    tasks: [
      { text: "This is task 1" },
      { text: "This is task 2" },
      { text: "This is task 3" }
    ]
  });
}

It is the exact same code as in the official meteor tutorial. If I run the example, the title is rendered just fine. The list on the other hand doesn't appear at all. Somehow, the helpers do not work. I get the following javascript error:

Uncaught TypeError: Cannot read property 'helpers' of undefined

In the meteor console, no error or warning was printed. I am very excited about meteor and I would love to use it in the future for production apps, so please help me with this (probably very simple) problem. I hope it is not only a problem in windows (meteor hasn't yet been officially released for windows).

Meteor came out of beta, and I am very excited to use it. I installed it on my windows machine (from http://win.meteor./) and created an app. Here's the code:

html:

<!-- simple-todos.html -->
<head>
  <title>Todo List</title>
</head>

<body>
  <div class="container">
    <header>
      <h1>Todo List</h1>
    </header>

    <ul>
      {{#each tasks}}
        {{> task}}
      {{/each}}
    </ul>
  </div>
</body>

<template name="task">
  <li>{{text}}</li>
</template>

javascript:

// simple-todos.js
if (Meteor.isClient) {
  // This code only runs on the client
  Template.body.helpers({
    tasks: [
      { text: "This is task 1" },
      { text: "This is task 2" },
      { text: "This is task 3" }
    ]
  });
}

It is the exact same code as in the official meteor tutorial. If I run the example, the title is rendered just fine. The list on the other hand doesn't appear at all. Somehow, the helpers do not work. I get the following javascript error:

Uncaught TypeError: Cannot read property 'helpers' of undefined

In the meteor console, no error or warning was printed. I am very excited about meteor and I would love to use it in the future for production apps, so please help me with this (probably very simple) problem. I hope it is not only a problem in windows (meteor hasn't yet been officially released for windows).

Share Improve this question asked Nov 8, 2014 at 16:08 LucaLuca 5581 gold badge4 silver badges18 bronze badges 1
  • First thing I'd do is add console.dir(Template); before the attempted call to .helpers(). The issue is that .body is undefined, so it'd be useful to figure out what Template actually looks like. – Pointy Commented Nov 8, 2014 at 16:11
Add a ment  | 

1 Answer 1

Reset to default 5

Template needs to be defined by <template name="xxx">.

There is no helper on the <body> element.

You could use a global helper for this, though:

Template.registerHelper("tasks", function() {
    return [....]
});

An alternative is to use <template name="body">:

<body>
    {{>body}}
</body>

<template name="body">
  <div class="container">
    <header>
      <h1>Todo List</h1>
    </header>

    <ul>
      {{#each tasks}}
        {{> task}}
      {{/each}}
    </ul>
  </div>
</template>
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