Laravel hasMany和belongsToMany关系

Question

I have struggled with my Laravel relationships.

So I have 3 tables:

1. Users
2. Countries
3. countries_user

As you can see relation is countries_user. Now every time gives error like:

Illuminate\Database\QueryException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'countries.user_id' in 'where clause' (SQL: select

• from countries where countries . user_id = 1 and countries . user_id is not null) in file C:\xampp\htdocs\gManager\vendor\laravel\framework\src\Illuminate\Database\Connection.php on line 671

I understand the problem is that it's looking in countries and not in countries_user. How to define where I want to search the relation?

Here is my User model

public function countries()
    {
        return $this->hasMany('App\Models\Countries');
    }

And my Countries Model

public function users()
    {
        return $this->belongsToMany(User::class);
    }

Answer 1

Try specifying the table name

public function users()
{
    return $this->belongsToMany(User::class, 'countries_user');
}

And the inverse relation should also be belongsToMany

public function countries()
{
    return $this->belongsToMany(Countries::class, 'countries_user');
}

And also specify the table property on Countries model

class Countries extends Model
{
    protected $table = 'countries';

    //...
}

Answer 2

The countries relationship should be belongsToMany too.
Instead of

public function countries()
    {
        return $this->hasMany('App\Models\Countries');
    }

put

public function countries()
    {
        return $this->belongsToMany('App\Models\Countries');
    }