php Yii Nested json array

Question

First code: $result=ResPlaces::model()->findall($criteria);

         /*foreach($result as $value)
     {
        $model_name=ResRegistration::model()->findByAttributes(array('id'=>$value->user_id));
        $model_image=ResImages::model()->findByAttributes(array('place_id'=>$value->id),array('limit'=>'1'));


     }*/

     }
      echo CJSON::encode($result);

?>

i need to add model_name->company_name & $model_image->image
to my echo json array

Answer 1

Try to load the relations within the findAll so you don't need the foreach.

ResPlaces::model()->with('ResRegistration', 'ResImages')->together()->findAll($criteria);

For ResRegistration and ResImages use the relation names as defined in your model. If you don't need all fields of these relations, you can specify a select in your $criteria.

See the guide for more info.

edit: I am not quite sure, why you cannot use relation. However you will need a loop, like you already have. Here is how you do it without relations:

First add the fields you want to use to your model. In this case

class ResPlaces extends CActiveRecord
{
    public $name; // check that these do not collide with your models db fields
    public $image;

    [...]
}

In your controller do the loop like you did before:

foreach($result as $key => $value)
{

    $result[$key]->name = ResRegistration::model()->findByAttributes(array('id' => $value->user_id));

    // findByAttributes returns only one record, so you don't need the limit here
    // if you want multiple records, you have to use findAllByAttributes
    $result[$key]->image = ResImages::model()->findByAttributes(array('place_id' => $value->id), array('limit' => '1'));
}

That should do it. However I wouldn't recommend this way, because you have lots of additional database requests. If your $result is populated with say 100 records, you have in sum 200 additional queries which are not nessassary with a relation.

Note also that if you need these two other fields more often, it may be better to put these two queries which are now in the controller in your model. The afterFind() would be the right place.