I agree that its a bit awkward, though it is quite "pure", to
redirect-after-action.
5.2 includes the ability to request a page to render immediately from
an event handler method by returning a StreamPageContent instance.
This was actually a suggestion from a student at one of my
SkillsMatter classes, and implemented by Igor.
2011/5/17 Василий Жуков <vip.del...@gmail.com>:
> Thx! I made my own "t:formif" with @Persist field and ComponentAction :)
> It's ugly, i know.
>
> I have become frustrated in the pattern of Post-Redirect-Get.
> There are so many code for saving and restoring component states in/from
> HttpSession, three @Persist strateg strategies, my ugly t:formif...
>
> I'm almost inclined to implement (in tapestry 5) pattern AjaxPost->Update
> Zones. I think it's easier than Post-Redirect-Get.
> In this case all components will be stateless, no HttpSession, partial form
> update will be very simple, form POST with partial updated zones will be
> working, no persist strategies.
> But now I have no time for it and all my code works fine now. In the future
> I definitely implement it.
>
> Vasily
>
> 2011/5/17 Josh Canfield <joshcanfi...@gmail.com>
>
>> > I have some problem with t:if
>>
>> I think your problem is really with the redirect-after-post paradigm.
>>
>> > Yes, I can use @Persist on "check" property, but I need a full page
>> refresh
>> > when pressing F5.
>>
>> Try @Persist("flash"). When you read the value it's removed from the
>> session until you store it again. This generally solves the problem.
>> The one place where you might it a snag is if you redirect to a
>> different page after posting the form. In that case the value will
>> remain, you can call
>> ComponentResources#discardPersistentFieldChanges() if you know you're
>> not going to be redirecting to another page.
>>
>> Josh
>
--
Howard M. Lewis Ship
Creator of Apache Tapestry
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