mixtape/zero.Web/Filters/BackofficeFilterAttribute.cs

using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using System;
using zero.Web.Controllers;

namespace zero.Web.Filters
{
  public class BackofficeFilterAttribute : IActionFilter
  {
    const string SCOPE_KEY = "scope";


    public void OnActionExecuting(ActionExecutingContext context)
    {
      Type type = context.Controller.GetType();

      if (typeof(BackofficeController).IsAssignableFrom(type))
      {
        if (context.HttpContext.Request.Query.TryGetValue(SCOPE_KEY, out var scope))
        {
          (context.Controller as BackofficeController).OnScopeChanged(scope.ToString());
        }
      }
    }

    public void OnActionExecuted(ActionExecutedContext context)
    {
    }
  }
}