'boolean', 'is_active' => 'boolean', ]; public function options() { return $this->hasMany(WhatsappMenuOption::class, 'menu_id')->orderBy('sort_order'); } public function parent() { return $this->belongsTo(WhatsappMenu::class, 'parent_id'); } public function children() { return $this->hasMany(WhatsappMenu::class, 'parent_id'); } }