Allows override query relation in descendant class

framework/CHANGELOG.md

@@ -21,16 +21,17 @@ Yii Framework 2 Change Log
 - Bug #13592: Fixes Oracle’s `yii\db\oci\Schema::setTransactionIsolationLevel()` (sergeymakinen)
 - Bug #13594: Fixes insufficient quoting in `yii\db\QueryBuilder::prepareInsertSelectSubQuery()` (sergeymakinen)
 - Enh #8641: Enhanced `yii\console\Request::resolve()` to prevent passing parameters, that begin from digits (silverfire)
+- Enh #13144: Refactored `yii\db\Query::queryScalar()` (Alex-Code)
+- Enh #13221: Make `\yii\db\QueryTrait::limit()` and `\yii\db\QueryTrait::offset()` methods work with `\yii\db\Expression` (Ni-san)
 - Enh #13278: `yii\caching\DbQueryDependency` created allowing specification of the cache dependency via `yii\db\QueryInterface` (klimov-paul)
+- Enh #13407: Added URL-safe base64 encode/decode methods to `StringHelper` (andrewnester)
 - Enh #13467: `yii\data\ActiveDataProvider` no longer queries models if models count is zero (kLkA, Kolyunya)
 - Enh #13523: Plural rule for pasta (developeruz)
 - Enh #13550: Refactored unset call order in `yii\di\ServiceLocator::set()` (Lanrik)
 - Enh #13576: Added support of `srcset` to `yii\helpers\Html::img()` (Kolyunya)
 - Enh #13577: Implemented `yii\db\mssql\QueryBuilder::resetSequence()` (boboldehampsink)
 - Enh #13582: Added tests for all `yii\db\QueryBuilder::resetSequence` implementations, fixed SQLite implementation (boboldehampsink)
-- Enh #13407: Added URL-safe base64 encode/decode methods to `StringHelper` (andrewnester)
-- Enh #13221: Make `\yii\db\QueryTrait::limit()` and `\yii\db\QueryTrait::offset()` methods work with `\yii\db\Expression` (Ni-san)
-- Enh #13144: Refactored `yii\db\Query::queryScalar()` (Alex-Code)
+- Enh #13642: Allows override query relation in descendant class (leandrogehlen)
 
 
 2.0.11.2 February 08, 2017
@@ -1782,4 +1783,3 @@ Yii Framework 2 Change Log
 
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   - [Twig View Renderer](https://github.com/yiisoft/yii2-twig)
-

framework/db/BaseActiveRecord.php

@@ -370,13 +370,7 @@ public function __unset($name)
      */
     public function hasOne($class, $link)
     {
-        /* @var $class ActiveRecordInterface */
-        /* @var $query ActiveQuery */
-        $query = $class::find();
-        $query->primaryModel = $this;
-        $query->link = $link;
-        $query->multiple = false;
-        return $query;
+        return $this->createRelationQuery($class, $link, false);
     }
 
     /**
@@ -410,13 +404,26 @@ public function hasOne($class, $link)
      * @return ActiveQueryInterface the relational query object.
      */
     public function hasMany($class, $link)
+    {
+        return $this->createRelationQuery($class, $link, true);
+    }
+
+    /**
+     * Creates query instance for `has-one` and `has-many` relation.
+     * @param string $class the class name of the related record
+     * @param array $link the primary-foreign key constraint
+     * @param boolean $multiple whether this query represents a relation to more than one record.
+     * @return ActiveQueryInterface the relational query object.
+     * @since 2.0.12
+     */
+    protected function createRelationQuery($class, $link, $multiple)
     {
         /* @var $class ActiveRecordInterface */
         /* @var $query ActiveQuery */
         $query = $class::find();
         $query->primaryModel = $this;
         $query->link = $link;
-        $query->multiple = true;
+        $query->multiple = $multiple;
         return $query;
     }