[TYPO3-mvc] Flash Messages get persisted among page hits

[Thomas "Thasmo" Deinhamer]

Actually there are some situations where you need to display a message 
after a page redirect.

Thomas

Am 23.04.2010 12:39, schrieb Franz Koch:
> Hey,
>
>>> If you add a flash message and then do an external redirect, it has to
>>> be stored in the session until the next request. That is what's
>>> happening in the dispatcher.
>>
>> Why? If you leave the page the semantic context of the message will be
>> lost.
>
> right, I also don't see a reason for this. Even if I would do a redirect
> to something like a "order confimration" page in a shop extension, I
> don't necessarily need to display a session stored flash message telling
> me "thanks, your order has been placed..." as there for sure will be a
> dedicated template for this using some L10N translations. So for me a
> flash message is and will always only be vaild for the current
> page/request.
>
>>> b) If a flash message is rendered, the cache of this page (well, the
>>> cache for this cHash would be enough) must be invalidated; to only cache
>>> outputs without flash-messages. Any suggestions how to clear that cache
>>> for a single cHash? I'm not that good concerning the caching
>>> framework ;)
>
> If there is a flash message, there's most likely also some form/data
> submission (thus dynamic content) that's requiring that the extension is
> USER_INT anyway.
>