[英]MongoDB Update/delete Multiple documents based on Custom ID
I have a mongo schema我有一个 mongo 架构
const taskSchema=new Schema({
userID:{type:ObjectId,required:true},
task: {
type: String,
required: true,
trim: true,
maxlength: 30,
},
finalDate:{type:Date,required:true},
isFinished:{type:Boolean,required:true}
})
what I need to get all the documents with a particular UserID and update/delete .我需要获取具有特定 UserID 的所有文档并更新/删除。 I can use the find method to find all the documents with the required user id .
我可以使用 find 方法查找具有所需用户 id 的所有文档。 After that I am at a loss on what to do.There will be multiple documents with same user id .
之后我不知道该怎么办。会有多个文件具有相同的用户 id 。 Any ideas on how to proceed will be a great help
关于如何进行的任何想法都会有很大帮助
Update更新
To update the first document matching the given condition更新匹配给定条件的第一个文档
db.collection.update({
"userID": ObjectId("5b87780c9ca8b03096a33380"),
"task": "Cooking"
},
{
$set: {
"isFinished": true
}
})
To update all documents matching the given condition use multi: true要更新与给定条件匹配的所有文档,请使用multi: true
db.collection.update({
"userID": ObjectId("5b87780c9ca8b03096a33380"),
"task": "Cooking"
},
{
$set: {
"isFinished": true
}
},
{
multi: true
})
Delete删除
To delete the first document matching the given condition删除匹配给定条件的第一个文档
db.collection.delete({
"userID": ObjectId("5b87780c9ca8b03096a33380"),
"task": "Cooking"
})
To delete all documents matching the given condition删除所有符合给定条件的文档
db.collection.deleteMany({
"userID": ObjectId("5b87780c9ca8b03096a33380"),
"task": "Cooking"
})
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