app/controllers/notifications_controller.rb
class NotificationsController < ApplicationController
before_action :require_user
def index
notifications = current_user.notifications.order(created_at: :desc)
render locals: { notifications: notifications }
end
def show
notification = current_user.notifications.find(params[:id])
notification.mark_as_read
redirect_to notification.target_path
end
def mark_all_as_read
current_user.notifications.where(read_at: nil).update_all(read_at: Time.current)
flash[:notice] = "All notifications marked as read"
redirect_to notifications_path
end
end