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POWhy $pull operator doesn't work on MongoDB when using empty criteria?
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7702212
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2011-10-09T08:07:19.400
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2011-10-09T09:22:09.907
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2011-10-09T08:37:43.087
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I have nodes like this: <pre><code>[_id] => MongoId Object ( [$id] => 4e90cb3cd68417740c000017 ) [label] => mystery [owner] => me [parents] => Array ( [0] => Array ( [id] => MongoId Object ( [$id] => 4e8c6bb6d68417340e0004ca ) [owner] => userid [timestamp] => 1318112522 ) ) [timestamp] => 1318112060 [translabel] => mystery [type] => 0 </code></pre> What I am trying to do is to remove parents with id : 4e8c6bb6d68417340e0004ca , wherever they are. For example this should have been working (latest Mongo): <pre><code>db.nodes.update({},{$pull : {"parents": { "id" : ObjectId("4e8c6bb6d68417340e0004ca") }}}); </code></pre> or equaly in PHP (latest driver etc): <pre><code>$mongodb->nodes->update(array(),array('$pull'=> array('parents'=>array('id'=> new MongoId("4e8c6bb6d68417340e0004ca"))))); </code></pre> both don't do anything! <hr> on the other hand: <pre><code>db.nodes.update({"_id": ObjectId("4e90cb3cd68417740c000017")},{$pull : {"parents": { "id" : ObjectId("4e8c6bb6d68417340e0004ca") }}}); </code></pre> or equaly in PHP: <pre><code>$mongodb->nodes->update(array('_id' => new MongoId("4e90cb3cd68417740c000017"),array('$pull'=> array('parents'=>array('id'=> new MongoId("4e8c6bb6d68417340e0004ca"))))); </code></pre> work perfectly well! Is this a bug? Is it a problem that I use "id" instead of "_id" with MongoID objects in my subdocuments? Thanks in advance for any help!
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<mongodb><pull><mongodb-php>
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Why $pull operator doesn't work on MongoDB when using empty criteria?
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1. USMichail Michailidis
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1. USMichail Michailidis
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