'Turkey', 'code' => 'TR', 'phone_code' => '+90'], ['name' => 'United States', 'code' => 'US', 'phone_code' => '+1'], ['name' => 'Germany', 'code' => 'DE', 'phone_code' => '+49'], ['name' => 'France', 'code' => 'FR', 'phone_code' => '+33'], ['name' => 'United Kingdom', 'code' => 'GB', 'phone_code' => '+44'], ['name' => 'Spain', 'code' => 'ES', 'phone_code' => '+34'], ['name' => 'Italy', 'code' => 'IT', 'phone_code' => '+39'], ['name' => 'Russia', 'code' => 'RU', 'phone_code' => '+7'], ['name' => 'China', 'code' => 'CN', 'phone_code' => '+86'], ['name' => 'Japan', 'code' => 'JP', 'phone_code' => '+81'], ]; foreach ($countries as $country) { Country::firstOrCreate(['code' => $country['code']], array_merge($country, ['is_active' => true])); } $tr = Country::where('code', 'TR')->first(); if ($tr) { $cities = ['Istanbul', 'Ankara', 'Izmir', 'Bursa', 'Antalya']; foreach ($cities as $city) { City::firstOrCreate(['name' => $city, 'country_id' => $tr->id]); } } $us = Country::where('code', 'US')->first(); if ($us) { $cities = ['New York', 'Los Angeles', 'Chicago', 'Houston', 'Phoenix']; foreach ($cities as $city) { City::firstOrCreate(['name' => $city, 'country_id' => $us->id]); } } } }