Upsert embedded document in yiimongodbsuite

问题:

I need to perform an upsert command in yiimongodbsuite. I tried

$model   = new Murls();          
                $model->userid=$userid;
                $model->title=$title;      
                $model->edits[0] = new Medithtml();
                $model->edits[0]->path= $htm;
                $model->edits[0]->html=$path;
                $model->edits[0]->ci=$ci;
                $model->update(array('_id'=>$rec->_id ),array('userid', 'title','edits' ), true );

But this shows an error.

Murls model is defined as follows

   class Murls extends EMongoDocument
    {
        public $userid;
        public $title;
        public $edits;



   public static function model($className=__CLASS__)
      {
        return parent::model($className);
      }

      // This method is required!
      public function getCollectionName()
      {
        return 'murls';
      }

      public function attributeLabels()
      {
        return array(
          'html'=>'Html',
        );
      }

      public function embeddedDocuments()
      {
        return array(
                // property name => embedded document class name
                'edits'=>'Medithtml',

        );
      }

      public function behaviors(){
            return array(
                            'embeddedArrays' => array(
                                'class' => 'ext.YiiMongoDbSuite.extra.EEmbeddedArraysBehavior',
                                'arrayPropertyName' => 'edits', // name of property, that will be used as an array
                                'arrayDocClassName' => 'Medithtml'    // class name of embedded documents in array
                ),
        );
      }

    }

and model Medithtml as

class Medithtml extends EMongoEmbeddedDocument{
    public $html;
    public $path;
    public $ci;

    public static function model($className=__CLASS__)
    {
        return parent::model($className);
    }


}

What I need to achieve is that a record with $title can have n number of $html , $path and $ci. Any help will be appreciated. What I am looking is to store data like this

     array (
  '_id' => 
  MongoId::__set_state(array(
     '$id' => '51ee1956d39c2c7e078d80da',
  )),
  'userid' => '12',
  'title' => 'Mongo',
  'edits' => 
  array (
    0 => 
    array (
      'html' => 'html>body>div:nth-child(2)>a>div>a>div',
      'path' => 'ssssss',
      'ci' => '1',
    ),
    1 => 
    array (
      'html' => 'html>body>div:nth-child(2)>a>div:nth-child(3)>a>h2',
      'path' => '/assets/img/demo/demo-avatar9604.jpg',
      'ci' => '2',
    ),
    2 => 
    array (
      'html' => ' html>body>div:nth-child(2)>a>div:nth-child(3)>a>center:nth-child(16)>a>h1',
      'path' => '333',
      'ci' => '3',
    ),
  ),
)

Only the comments array will be updated if record with a particular combination of 'title' and 'userid' exists.If it doesn not exists a new record will be inserted

回答1:

You are inheriting from wrong class. To save document you must inherit from EMongoDocument not EMongoEmbeddedDocument. These classes are similar but have different purpose.

• EMongoEmbeddedDocument Is for embedded documents only, it should be used only for embedded documents
• EMongoDocument extends from EMongoEmbeddedDocument with methods to actually save data to db.

For array of comments, you have two options:

1. Use plain php array - simple less maintanable, less power, erron prone..
2. Use array of embedded documents - each comment is document, so can be validated, has rigid structure etc.

By default save/insert/update stores all attributes. For partial updates use combination of $attributes and set $modify to true. Warning: Passing array of attributes without $modify will store only passed attributes, discarding rest of document.

public function save($runValidation = true, $attributes = null)
...
public function insert(array $attributes = null)
...
public function update(array $attributes = null, $modify = false)
...

So in your case you can update like that:

$model->update(array('comments'), true);

Or if it's ok for you to ovverride whole document just save:

$model->save();

Note: for composite pk ovverride primaryKey():

public function primaryKey()
{
    return array('title', 'userid');
}

Uh, good that stackoverflow have drafts autosave feature:)

回答2:

Finally I got solution in this way:

       $rec = $model->find($criteria)  ;
           if($rec){

       foreach($rec->edits as  $editarray){
            $var[]=$editarray;
       }
        $edits_new= new Medithtml();
        $edits_new['html']=$htm;
        $edits_new['ci']=$ci;
        $edits_new['path']=$path;  
        $var[]=$edits_new;
        $rec->edits=$var;

        $rec->userid=$userid;
        $rec->title=$title;
        $rec->update(array('edits'  ), true);
      }