php - How can i fetch another table data in different table column? -

firstly have given 3 table structure.

actions table:

roles table:

permissions table:

here how can action_id in permissions table actions table? , how can role_id in permissions table roles table? please tell me easy way , beginner in laravel.

action model:

<?php  namespace app;  use illuminate\database\eloquent\model;  class action extends model {     //     protected $table = "actions";     //public $fillable = []       public function role(){         return $this->belongsto('app\action');     }         public function permission(){         return $this->belongsto('app\action');     } } 

permission model:

<?php  namespace app;  use illuminate\database\eloquent\model;  class permission extends model {     //     protected $table ="permissions";      public function actionget(){         return $this->hasone('app/permission');     } } 

update permission_table join action_table b on a.id = b.id join roles_table c on a.id = c.id set a.action_id = b.id, a.role_id = c.id; 

this update action_id in permission table id action table also, role_id in permission table id role table. assume want.