使用php将新的内部对象插入现有对象mongodb [英] insert new inner object into existing object mongodb using php
问题描述
我的mongo收藏集中有以下文档
I have the following document in my mongo collection
{"_id":"5a9e97557cf28c1c2d00003d",
"user_id":"avi12",
"name":"Avinash",
"Friends":{
"avi12":{
"From":"avi12",
"To":"chandu",
"Friend_status":"pending",
"Time":1520342869,
"requestid":"s_avi12_first"
},
"second_user":{
"From":"avi122",
"To":"chandu2",
"Friend_status":"pending2",
"Time":1520342869,
"requestid":"2s_avi12_first"
}
}
}
我要插入新对象(第三用户")插入好友对象.我尝试了以下代码...
I want to inset new object ("Third user") into Friends object. I have tried the following code...
$update_friend_send=array(
$user_name=>array(
"From"=>$user_name,
"To"=>$To,
"Friend_status"=>"pending",
"Time"=>time(),
"requestid"=>"s_".$user_name."_".$sender_id
));
$condition = array("_id"=>$realmongoid);
$data = array('$set' => array('Friends.$' =>$update_friend_send));
$collection->update($condition,$data);
但是当我运行这段代码时,它通过插入新的(第三个用户)对象来更新Friends对象,并删除旧的对象(avi12和第二个对象),只有最后一个在扩孔.
but when I run this code, it is updating the Friends object by inserting new (third user) object and removes old objects(avi12 and second), only last one is reaming.
如何将新对象插入到Friends对象中,以保留先前的数据,我也不想使用数组.请帮忙...
How I can insert new object into Friends object keeping the previous data, also I don't want to use array. please help...
推荐答案
当您要在现有数组中推送新对象时,需要使用$push
而不是$set
.
You need to use $push
instead of $set
when you want to push new object in existing array.
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