change the regular query to laravel query (laravel 5)

My regular query is like this :

SELECT a.nationality_id, a.nationality_name, b.province_name, c.city_name
FROM tb_general_nationality a
JOIN tb_search_province b ON a.nationality_id = b.country_id
JOIN tb_search_city c ON b.province_id = c.province_id
WHERE b.country_id = 50

I change the query to laravel query like this :

Service :

public function listCity($param=null)
$city = City::with('province','country')->where('tb_search_province.country_id',$param)->get();
echo json_encode($city);

Model :

City Model :

namespace AppModelsCity;

use IlluminateDatabaseEloquentModel;

class City extends Model {

protected $connection = 'pgsql';

protected $table = 'tb_search_city';

public function province()
return $this->belongsTo('AppModelsProvinceProvince','province_id','province_id');


Country Model :

namespace AppModelsCountry;

use IlluminateDatabaseEloquentModel;

class Country extends Model {

protected $connection = 'pgsql';

protected $table = 'tb_general_nationality';


Province Model :

namespace AppModelsProvince;

use IlluminateDatabaseEloquentModel;

class Province extends Model {

protected $connection = 'pgsql';

protected $table = 'tb_search_province';

public function country()
return $this->belongsTo('AppModelsCountryCountry','nationality_id','country_id');


My Table is like this:

tb_search_city (city_id, province_id, city_name)
tb_search_province (province_id, country_id, province_name)
tb_general_nationality (nationality_id, nationality_name)

How to change the regular query to laravel query?

Thank you very much

from Newest questions tagged laravel-5 – Stack Overflow

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