set relation parent key when using forceCreate (#42281)

Author: rodrigopedra

src/Illuminate/Database/Eloquent/Relations/HasOneOrMany.php

@@ -297,6 +297,19 @@ public function create(array $attributes = [])
         });
     }
 
+    /**
+     * Create a new instance of the related model. Allow mass-assignment.
+     *
+     * @param  array  $attributes
+     * @return \Illuminate\Database\Eloquent\Model
+     */
+    public function forceCreate(array $attributes = [])
+    {
+        $attributes[$this->getForeignKeyName()] = $this->getParentKey();
+
+        return $this->related->forceCreate($attributes);
+    }
+
     /**
      * Create a Collection of new instances of the related model.
      *

tests/Database/DatabaseEloquentHasManyTest.php

@@ -55,6 +55,15 @@ public function testCreateMethodProperlyCreatesNewModel()
         $this->assertEquals($created, $relation->create(['name' => 'taylor']));
     }
 
+    public function testForceCreateMethodProperlyCreatesNewModel()
+    {
+        $relation = $this->getRelation();
+        $created = $this->expectForceCreatedModel($relation, ['name' => 'taylor']);
+
+        $this->assertEquals($created, $relation->forceCreate(['name' => 'taylor']));
+        $this->assertEquals(1, $created->getAttribute('foreign_key'));
+    }
+
     public function testFindOrNewMethodFindsModel()
     {
         $relation = $this->getRelation();
@@ -304,6 +313,18 @@ protected function expectCreatedModel($relation, $attributes)
 
         return $model;
     }
+
+    protected function expectForceCreatedModel($relation, $attributes)
+    {
+        $attributes[$relation->getForeignKeyName()] = $relation->getParentKey();
+
+        $model = m::mock(Model::class);
+        $model->shouldReceive('getAttribute')->with($relation->getForeignKeyName())->andReturn($relation->getParentKey());
+
+        $relation->getRelated()->shouldReceive('forceCreate')->once()->with($attributes)->andReturn($model);
+
+        return $model;
+    }
 }
 
 class EloquentHasManyModelStub extends Model

tests/Database/DatabaseEloquentHasOneTest.php

@@ -129,6 +129,20 @@ public function testCreateMethodProperlyCreatesNewModel()
         $this->assertEquals($created, $relation->create(['name' => 'taylor']));
     }
 
+    public function testForceCreateMethodProperlyCreatesNewModel()
+    {
+        $relation = $this->getRelation();
+        $attributes = ['name' => 'taylor', $relation->getForeignKeyName() => $relation->getParentKey()];
+
+        $created = m::mock(Model::class);
+        $created->shouldReceive('getAttribute')->with($relation->getForeignKeyName())->andReturn($relation->getParentKey());
+
+        $relation->getRelated()->shouldReceive('forceCreate')->once()->with($attributes)->andReturn($created);
+
+        $this->assertEquals($created, $relation->forceCreate(['name' => 'taylor']));
+        $this->assertEquals(1, $created->getAttribute('foreign_key'));
+    }
+
     public function testRelationIsProperlyInitialized()
     {
         $relation = $this->getRelation();