I have set up a global filter for all my controller actions in which I open and close NHibernate sessions. 95% of these action need some database access, but 5% don't. Is there any easy way to disable this global filter for those 5%. I could go the other way round and decorate only the actions that need the database, but that would be far more work.
You could write a marker attribute:
public class SkipMyGlobalActionFilterAttribute : Attribute
{
}
and then in your global action filter test for the presence of this marker on the action:
public class MyGlobalActionFilter : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
if (filterContext.ActionDescriptor.GetCustomAttributes(typeof(SkipMyGlobalActionFilterAttribute), false).Any())
{
return;
}
// here do whatever you were intending to do
}
}
and then if you want to exclude some action from the global filter simply decorate it with the marker attribute:
[SkipMyGlobalActionFilter]
public ActionResult Index()
{
return View();
}