sminnee / silverstripe-framework

		}

		// If we haven't been written yet, we can't save these relations, so use a list that handles this case

		if(!$this->ID) {

			if(!isset($this->unsavedRelations[$componentName])) {

				$this->unsavedRelations[$componentName] =

					new UnsavedRelationList($this->class, $componentName, $componentClass);

			}

			return $this->unsavedRelations[$componentName];

		}

		// Determine type and nature of foreign relation

		$joinField = $this->getRemoteJoinField($componentName, 'has_many', $polymorphic);

		list($parentClass, $componentClass, $parentField, $componentField, $table) = $manyManyComponent;

		// If we haven't been written yet, we can't save these relations, so use a list that handles this case

		if(!$this->ID) {

			if(!isset($this->unsavedRelations[$componentName])) {

				$this->unsavedRelations[$componentName] =

					new UnsavedRelationList($parentClass, $componentName, $componentClass);

			}

			return $this->unsavedRelations[$componentName];

		}

		$extraFields = $this->manyManyExtraFieldsForComponent($componentName) ?: array();

		/** @var ManyManyList $result */