Fixed use of foreign and local/owner key.

See #3 (comment).
See #3 (comment).

Author: kim-dongit

src/TwoFactorAuth.php

@@ -39,6 +39,6 @@ class TwoFactorAuth extends Model
      */
     public function user() : BelongsTo
     {
-        return $this->belongsTo(\App\User::class, config('twofactor-auth.models.user.primaryKey', 'id'));
+        return $this->belongsTo(\App\User::class, 'user_id', config('twofactor-auth.models.user.primaryKey', 'id'));
     }
 }

src/TwoFactorAuthenticable.php

@@ -15,7 +15,7 @@ trait TwoFactorAuthenticable
      */
     public function twoFactorAuth() : HasOne
     {
-        return $this->hasOne(TwoFactorAuth::class, $this->getKeyName());
+        return $this->hasOne(TwoFactorAuth::class, 'user_id', $this->getKeyName());
     }
 
     /**