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  1. Core Server
  2. SERVER-2667

Cannot compare different instances of ObjectIds with same value

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    • Type: Icon: Bug Bug
    • Resolution: Won't Fix
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: None
    • Component/s: JavaScript
    • None
    • Environment:
      shell
    • Fully Compatible
    • ALL
    • None
    • 3
    • None
    • None
    • None
    • None
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      Simple test: 

      > a = ObjectId() 
ObjectId("4d6e43c970953cc4bf43b8cc") 
> db.test.insert({a:a}) 
> doc = db.test.findOne() 
{ 
        "_id" : ObjectId("4d6e43d170953cc4bf43b8cd"), 
        "a" : ObjectId("4d6e43c970953cc4bf43b8cc") 
} 
> doc.a.equals(a) 
true 
> doc.a.toString() === a.toString() 
true 
> doc.a === a 
false
> doc.a == a     
false
> db.version() 
1.7.4

      For example, PHP driver works great with it:

      <?php
$id = new MongoID();
$sameId = new MongoID((string)$id);

var_dump($id == $sameId); // bool(true)
var_dump($id === $sameId); // bool(false)

      Followed by discussion in groups:
      http://groups.google.com/group/mongodb-user/browse_thread/thread/77c0c55e24e97a08

            Assignee:
            backlog-server-platform DO NOT USE - Backlog - Platform Team
            Reporter:
            octave Yuriy Bogdanov
            Votes:
            4 Vote for this issue
            Watchers:
            13 Start watching this issue

              Created:
              Updated:
              Resolved: