I have a JSON document stored in MongoDB that has the following structure:
{
"_id" : "cfqjJW8WZprDSJEop",
"rName" : "z1",
"pName" : "P-4",
"ipAddress" : "21.1.1.12",
"misc" : {
"createdBy" : "admin",
"updatedBy" : "admin",
"creationTime" : ISODate("2016-09-15T09:43:10.953Z"),
"updatedTime" : ISODate("2016-09-15T09:43:10.953Z")
}
}
In my Meteor application, I have written code in the helper function to update only the updatedBy and updatedTime fields of this document during each update operation.
The misc object is dynamically added just before inserting or updating the record.
However, when I try to update the record using my code snippet below, the entire misc object gets replaced with the new values, causing the loss of createdBy and creationTime fields:
doc = // contains the updated document.
misc = {};
misc.updatedBy = //some name
misc.updatedTime = new Date();
doc.misc = misc,
r.update(id, doc); // calling Meteor's update method
I've also attempted to partially update the object by injecting something like this into the doc:
doc.$set.misc.updatedBy
But it resulted in an error stating that updatedBy does not exist. Can anyone suggest the correct approach to partially update an object within a document?