CODEWITHSUNDEEP
node.jsmongodb
Đạt Huỳnh
Đạt Huỳnh

Reputation: 61

How to cascade delete in mongodb?

How can I delete file.txt when I delete Folder1 in mongoDB and nodejs ?

[
 {
  _id: 1,
  name: Folder1,
  parentId: null
 },
{
  _id: 2,
  name: file.txt,
  parentId: 1
 },
]

Upvotes: 0

Views: 368

Answers (1)

Harshad.N
Harshad.N

Reputation: 98

you can Delete a Document , for example You can specify the document or documents to be deleted by the deleteOne() or deleteMany() write operations in a JSON object as follows:

const doc = {
  pageViews: {
    $gt: 10,
    $lt: 32768
  }
};

To delete the first matching document using the deleteOne() method or to delete all matching documents using the deleteMany() method, pass the document as the method parameter:

const deleteResult = await collection.deleteOne(doc);
const deleteManyResult = await collection.deleteMany(doc);

enter link description here

Upvotes: 1

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