private function seedFlowTypes() { $rows = array_map(function ($mainflowType, $detailingflowTypes) { $mainflowType = MainflowType::create(['name' => $mainflowType]); foreach ($detailingflowTypes as $detailingflowType) { DetailingflowType::create(['mainflow_type_id' => $mainflowType->id, 'name' => $detailingflowType]); } }, $this->mainflowTypes, $this->detailingflowTypes); }