.update()
Purpose
Updates existing records in the database that match the specified criteria.
Overview
Parameters
|
Description |
Accepted Data Types |
Required ? |
| 1 |
Find Criteria |
{},[{}], string, int |
Yes |
| 2 |
Updated Records |
{},[{}] |
Yes |
| 3 |
Callback |
function |
No |
Callback Parameters
|
Description |
Possible Data Types |
| 1 |
Error |
Error |
| 2 |
Sucessfully Updated Records |
[{}] |
Example Usage
User.update({name:'Walter Jr'},{name:'Flynn'}).exec(function afterwards(err,updated){
if (err) {
return;
}
console.log('Updated user to have name '+updated[0].name);
});
Notes
- An array of primary key values passed to
.update() for a collection association will set the association to contain only the records with those primary key values provided. That is- it unlinks all other records from the association.
- Although you may pass .update() an object or an array of objects, it will always return an array of objects.
- If you specify a primary key (e.g.
7 or "50c9b254b07e040200000028") instead of a criteria object, any .where() filters will be ignored.
- Currently, calling
.populate() on an .update() query has no effect. To populate attributes on the results, you should follow up your update with a find().populate() query.