سطح دسترسی کاربر

سلام من توی سطح دسترسی کاربر به خطا خوردم کسی هست کمک کنه بهم

        Schema::create('permission_role', function (Blueprint $table) {

            $table->unsignedBigInteger('role_id');
            $table->foreign('role_id')->references('id')->on('roles')->onDelete('cascade');

            $table->unsignedBigInteger('permission_id');
            $table->foreign('permission_id')->references('id')->on('permissions')->onDelete('cascade');

            $table->primary(['role_id' , 'permission_id']);
        });

        Schema::create('role_user', function (Blueprint $table) {

            $table->unsignedBigInteger('role_id');
            $table->foreign('role_id')->references('id')->on('roles')->onDelete('cascade');

            $table->unsignedBigInteger('user_id');
            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');

            $table->primary(['role_id' , 'user_id']);
        });

    public function boot()
    {
        $this->registerPolicies();

        foreach($this->getPermissions() as $permission){
            Gate::define($permission->name , function($user)use ($permission){
                return $user->hasRole($permission->roles);
            });
        }

    }

    protected function getPermissions()
    {
        return Permission::with('roles')->get();
    }

    public function roles()
    {
        return $this->belongsToMany(Role::class);
    }

    public function hasRole($role)
    {
        if(is_string($role)){
            return $this->roles->contains('name', $role);
        }

        return !! $role->intersect($this->roles)->count();
    }