我有一个如下的mongodb对象:
array (
'_id' => new MongoId("4cc97fb0247ae8747ec5fefb"),
'posts' =>
array (
0 =>
array (
'comment' => 'Eamorr',
'fromUname' => 'Eamorr',
'time' => 1288273840,
'UTC' => '2010-10-28T14:50:40+01:00',
'ip' => '127.0.0.1',
'id' => '123lasdfiqwoei28asdf',
),
1 =>
array (
'comment' => 'Hello',
'fromUname' => 'Eamorr',
'time' => 1288277023,
'UTC' => '2010-10-28T15:43:43+01:00',
'ip' => '127.0.0.1',
'id' => 'qopqwier982389qwfa',
),
2 =>
array (
'comment' => 'Hello',
'fromUname' => 'Anonymous',
'time' => 1288283506,
'UTC' => '2010-10-28T17:31:46+01:00',
'ip' => '127.0.0.1',
'id' => 'ioqwoeias892398wrf',
),
/////
//Want to remove element 3:
/////
3 =>
array (
'comment' => 'asdfasadf',
'fromUname' => 'Anonymous',
'time' => 1288283864,
'UTC' => '2010-10-28T17:37:44+01:00',
'ip' => '127.0.0.1',
'id' => 'wwwwwiasdfn234oiasf',
),
4 =>
array (
'comment' => 'asdfasdfasdf',
'fromUname' => 'Anonymous',
'time' => 1288284076,
'UTC' => '2010-10-28T17:41:16+01:00',
'ip' => '127.0.0.1',
'id' => '290qwefoiqweproiqwerpq',
),
5 =>
array (
'comment' => 'ASDF',
'fromUname' => 'Eamorr',
'time' => 1288284331,
'UTC' => '2010-10-28T17:45:31+01:00',
'ip' => '127.0.0.1',
'id' => 'eioqw8923892hasdf',
),
6 =>
array (
'comment' => 'ASDF2',
'fromUname' => 'Eamorr',
'time' => 1288284370,
'UTC' => '2010-10-28T17:46:10+01:00',
'ip' => '127.0.0.1',
'id' => '23oaiofsaij234',
),
),
'uname' => 'Eamorr',
)
现在,我正在编写一些PHP代码来删除posts[x]。我试图使用$pull来删除数组元素。
我有一个'id' 'wwwwwiasdfn234oiasf'(数组元素3),我想删除这个整个数组元素,只留下'posts'数组中的6个元素。
我尝试过谷歌和查找文档,但仍然无法掌握mongodb语法。
我正在用PHP做所有这些事情,但任何语言都可以,我应该能够进行翻译。
提前致谢,
解决方案(用PHP):
$uname=whatever
$id=whatever
$mongo=new Mongo();
$walls=$mongo->people->walls;
$walls->update(array('uname'=>$uname),array('$pull'=>array('posts'=>array('id'=>$id))));
$id
时要小心。以下代码可以帮助你避免一些错误:$id = new MongoId($id);
- user578597