在laravel中进行此查询的最佳方法是什么？

Question

我正在laravel中从事我的第一个项目，现在我执行搜索功能，但是，我正在执行一个涉及多个左连接的查询，当搜索返回时，我得到了一些多余的信息。

相关的表是这四个表，查询如下：

$searchData = ProfessionalDetail::select('u.id as user_id','u.first_name','u.last_name','u.profile_pic','c.name as city_name','professional_details.avg_ratings')
    ->join('users as u' , 'u.id', '=' ,'professional_details.user_id')
    ->join('user_speciality as us' , 'us.user_id', '=' ,'professional_details.user_id')
    ->join('specialities as sp' , 'sp.id', '=' ,'us.speciality_id')
    ->join('cities as c' , 'c.id', '=' ,'professional_details.city_id')
    ->join('users_roles as ur' , 'ur.user_id', '=' ,'professional_details.user_id')
    ->where( function ( $q2 ) use ( $name) {
         $q2->where('u.first_name' , 'like', '%' . $name . '%')
         ->orWhere('u.last_name','like', '%'.$name.'%')
         ->orWhere('u.first_name','like',$name.'%');
         ->orWhere('sp.name','like',$name.'%');
    })
    ->where('ur.role_id' ,'=' , 2)
    ->paginate($num_per_page);

    return $searchData;[![demo][1]][1]

我尝试过的是，按名称或专业列出用户（这是医生页面），按专业列出时，一切进展顺利。 但是，当我要按用户列出时，请左连接'user_speciality'和'professional_details'。 这使我多次回馈用户。

例如：

public function testApi(Request $request)
{
    $users = ProfessionalDetail::searchByNameAndSpe("joshi", 10);
    $i = 0;
    if ($users) {
        foreach ($users as $key => $value) {
            $response["result"][] = $value;
            $response["total"] = $i++;
        }

    } else {
        return "error";
    }

    return $response;
}

返回：

{"result":[{"user_id":204,"first_name":"Joshi","last_name":"Mohit","profile_pic":"1495436016.jpg","name":"Skin Specialist","city_name":"Pune","avg_ratings":"0.00"},{"user_id":204,"first_name":"Joshi","last_name":"Mohit","profile_pic":"1495436016.jpg","name":"Heart Specialist","city_name":"Pune","avg_ratings":"0.00"},{"user_id":204,"first_name":"Joshi","last_name":"Mohit","profile_pic":"1495436016.jpg","name":"ENT Specialist","city_name":"Pune","avg_ratings":"0.00"},{"user_id":204,"first_name":"Joshi","last_name":"Mohit","profile_pic":"1495436016.jpg","name":"Kidney Specialist","city_name":"Pune","avg_ratings":"0.00"},{"user_id":204,"first_name":"Joshi","last_name":"Mohit","profile_pic":"1495436016.jpg","name":"Eye Specialist","city_name":"Pune","avg_ratings":"0.00"}],"total":4}

Joshi仅注册一次，但是我知道由于他拥有多个专业，由于“多对多”的关系，他将被无数次遣返。

现在，要按专业名称和用户名称进行搜索，我知道的唯一方法是使用左连接，我认为分离信息的一种方法是在控制器中处理数组的信息，但是II我想知道这是否可以在查询中解决，因为我对SQL不太了解，如果有什么办法，我将不胜感激，因为它可以节省许多调试所有信息的步骤。

每种模型的方法

UserSpeciality表

public function users() {

    return $this->belongsToMany('App\User', 'user_speciality', 'speciality_id', 'user_id');
}

用户

  public function userSpeciality() {
        return $this->belongsToMany('App\Speciality','user_speciality', 'user_id', 'speciality_id');
}

专业

public function users() {

    return $this->belongsToMany('App\User', 'user_speciality', 'user_id', 'speciality_id');
}

专业详情表

    public function user(){
        return $this->belongsTo("App\User");
    }

Answer 1

尝试一次按用户ID分组

GROUPBY（USER_ID）