[英]How can I update some documents with different data in mongodb
如果我具有属于一个大集合的以下文档的ID,并具有一个newBusinessId来更新这些文档。 像这样:
const newBusinessId = '8abc4cef176aa342154d00c0'
const paymentsIds = ['5aba5cef176aa342154d2345', '5aba5cef176aa342154d6789']
这些ID属于我数据库中的以下文档:
[
{
_id: '5aba5cef176aa342154d2345',
state: 'MATURE',
comment: 'some comment 1',
startComment: 'some different comment 1',
expense: 2,
startExpense: 2,
businessId: '5aba5cef176aa342154d9876'
},
{
_id: '5aba5cef176aa342154d6789',
state: 'MATURE',
comment: 'some comment 2',
startComment: 'some comment 2',
expense: 3,
startExpense: 1,
businessId: '5aba5cef176aa342154d5432'
},
]
我想使用相同的businessId : newBusinessId更新那些文档,并使用INIT的状态值和要使用( startComment,startExpense )值设置的字段( comment,费用 ) ,以便在更新后可以得到以下结果:
[
{
_id: '5aba5cef176aa342154d2345',
state: 'INIT',
comment: 'some different comment 1',
startComment: 'some different comment 1',
expense: 2,
startExpense: 2,
businessId: '8abc4cef176aa342154d00c0'
},
{
_id: '5aba5cef176aa342154d6789',
state: 'INIT',
comment: 'some comment 2',
startComment: 'some comment 2',
expense: 1,
startExpense: 1,
businessId: '8abc4cef176aa342154d00c0'
},
]
任何想法如何? 我感谢你的强硬!
为了用同一对象中另一个字段的值更新一个字段(例如,费用= startExpense),您必须进行遍历,请尝试以下操作:
yourModel.find().forEach(
function (elem) {
yourModel.update(
{
_id: { $in: paymentsIds }
},
{
$set: {
state : 'INIT',
comment : elem.startComment,
expense : elem.startExpense,
BusinessId : newBusinessId
}
}
);
}
);
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