[SERVER-7055] ObjectId to String type conversion different in 2.2 from 2.0 - MongoDB Jira

XML

Word

Printable

The type conversion from ObjectId to String is invalid compared to previous MongoDB versions.

In Mongo 2.0.x:

var oid = new ObjectId("50575c152c2414982d000003");

var oidAsString = String(oid);

print(typeof oidAsString); // string

print(oidAsString); // 50575c152c2414982d000003

In Mongo 2.2.x:

var oid = new ObjectId("50575c152c2414982d000003");

var oidAsString = String(oid);

print(typeof oidAsString); // string

print(oidAsString); // ObjectId("50575c152c2414982d000003")

I would expect the converted value to be the hex string as described in 2.0.x.

This issue is similar to ~~SERVER-5439~~, however, this is not an improvement but a bug.

is related to

DOCS-563 documentation for valueOf() and toString()

related to

DOCS-584 Release notes for 2.2 should mention breaking change: ObjectId().valueOf() and ObjectId().toString() have reversed meanings

DOCS-586 Document "str" property of ObjectId() in JavaScript (shell and server)

SERVER-2684 special types in shell (e.g. Timestamp) display in variety of ways, and can confuse users