Duplicate items in array when $push

[brunocascio]

Hi jens!

$data = array('user_id' => Auth::user()->_id,   'username' => Auth::user()->username    );
$post->push('stars', $data);
$post->push('stars', $data);

Any option to prevent duplicate objects in array?

In mongo is $addToSet..

http://docs.mongodb.org/manual/reference/operator/update/addToSet/

Thanks!

[jenssegers]

Not at this moment. But you could use a raw expression: https://github.com/jenssegers/Laravel-MongoDB#raw-expressions

[brunocascio]

I have sent a pull request with that functionality.
I checked with same operation, and work fine.

[jenssegers]

The problem I have with these methods is that it deviates a lot from the original Eloquent functionality. MongoDB specific functionality is always available through raw expressions. I'll leave this open for opinions from other users for now.

I would rather add a third $unique parameter to the push method than introduce a new non-eloquent method.

[brunocascio]

Yes! Good idea.

Anyway..

Raw update:

$data = array('foo' => 'bar', 'foo2' => 'bar2');
$id = '52ae0bf538d34983168b4571';

Post::raw(function($collection) use ($data, $id)
{
  return $collection->update(array('_id' => new MongoID($id) ), array('$addToSet' => array( 'stars' =>  $data  ) ) );
});