[英]how to update into nested in array in mongodb
i have a structure like this 我有这样的结构
{
"name":"xxxxxx",
"list":[
{
"listname":"XXXXX1",
"card":[
{
"title":"xxxxxx",
"descip":"xxxxxxxxxx",
"id":"1213"
},
{
"title":"xxxxxx",
"descip":"xxxxxxxxxx",
"id":"1214"
}
]
},
{
"listname":"xxxxxx2",
"card":[
{
"title":"xxxxxx",
"descip":"xxxxxxxxxx",
"id":"1345",
},
{
"title":"xxxxxx",
"descip":"xxxxxxxxxx",
"id":"1346",
}
]
}
]
}
here listname is unique in list array and then id is unique in card array. 这里listname在list数组中是唯一的,而id在card数组中是唯一的。
i want to insert extra two key value pair into specific document of card array . 我想在卡阵列的特定文档中插入额外的两个键值对。 example now i want to add extra key value into id number 1213 现在示例,我想向ID号1213中添加额外的键值
the out put should look like this 输出应该看起来像这样
"card":[
{
"title":"xxxxxx",
"descip":"xxxxxxxxxx",
"id":"1213",
"name":"XXXXxx",
"age":"xxxx"
},
{
"title":"xxxxxx",
"descip":"xxxxxxxxxx",
"id":"1214",
}
]
how to update? 如何更新?
Try mongodb positional operator. 尝试mongodb 位置运算符。
Your query will be like list.$.id = 123 您的查询将类似于list。$。id = 123
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