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doc improvement.

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Qiang Xue
2014-02-01 10:45:38 -05:00
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docs/guide/active-record.md
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@ -271,6 +271,11 @@ whose subtotal is greater than 100. To specify a different threshold value, use
$orders = $customer->getBigOrders(200)->all();
```
> Note: A relation method returns an instance of [[yii\db\ActiveRelation]]. If you access the relation like
an attribute, the return value will be the query result of the relation, which could be an instance of `ActiveRecord`,
an array of that, or null, depending the multiplicity of the relation. For example, `$customer->orders` returns
an array of `Order` objects, while `$customer->getOrders()` returns an `ActiveRelation` instance.
Relations with Pivot Table
--------------------------