yii\db\BaseActiveRecord::hasMany PHP Method

BaseActiveRecord Class Documentation Usage Examples Of yii\db\BaseActiveRecord::hasMany Show file Open project: yiisoft/yii2

hasMany() public method

The declaration is returned in terms of a relational ActiveQuery instance through which the related record can be queried and retrieved back. A has-many relation means that there are multiple related records matching the criteria set by this relation, e.g., a customer has many orders. For example, to declare the orders relation for Customer class, we can write the following code in the Customer class: php public function getOrders() { return $this->hasMany(Order::className(), ['customer_id' => 'id']); } Note that in the above, the 'customer_id' key in the $link parameter refers to an attribute name in the related class Order, while the 'id' value refers to an attribute name in the current AR class. Call methods declared in ActiveQuery to further customize the relation.

public hasMany ( string $class, array $link ) : yii\db\ActiveQueryInterface
$class	string	the class name of the related record
$link	array	the primary-foreign key constraint. The keys of the array refer to the attributes of the record associated with the `$class` model, while the values of the array refer to the corresponding attributes in this AR class.
return	yii\db\ActiveQueryInterface	the relational query object.

    public function hasMany($class, $link)
    {
        /* @var $class ActiveRecordInterface */
        /* @var $query ActiveQuery */
        $query = $class::find();
        $query->primaryModel = $this;
        $query->link = $link;
        $query->multiple = true;
        return $query;
    }

Usage Example

Example #1

Show file

File: ActiveRecord.php Project: bscheshirwork/yii2-hiart

 /**
  * {@inheritdoc}
  * @return ActiveQuery the relational query object.
  */
 public function hasMany($class, $link)
 {
     return parent::hasMany($class, $link);
 }

BaseActiveRecord

__get

__isset

__set

__unset

afterDelete

afterFind

afterRefresh

afterSave

beforeDelete

beforeSave

bindModels