[TYPO3-ect] 4.1.0: Request parameters could not be validated

[Elmar HInz]

Am Tue, 06 Mar 2007 09:57:47 +0100 schrieb Franz Koch:

> Hi Steffen,
> 
>>> The second thing not to get the error message even if activated is simply 
>>> not so define 'pi_checkCHash' in your extensions - or let's better say set 
>>> it to false.
>>>
>> Ok, I will try, but I don't understand it. Let's say - was pi_base wrong 
>> whole the time with setting 'pi_checkCHash' to true ? Whats the reason for 
>> changing the default so it produces a lot of errors now ?
>> 
>> By thinking of this I feel at the same point as I was when starting coding 
>> for Typo3. Setting up cache in the right way seems to be a magic.
>> So I have one problem with understanding:
>> Cache is part of the page, so the page is cached. Even when the page has 
>> non-cached objects, they will not cashed.
>> But cHash is for the page, and the plugin doesn't know if page is cached, 
>> normally it is. So every lk hast to build a cHash - this would be the 
>> 'pi_checkCHash' =true
>> 
>> Now I feel like all I know about cache is falling down or isn't true and I'm 
>> very confused now.
> 
> I don't understand that either - so welcome to the club - just figured it out in my last extension for a customer. I mean - now it is not in any way possible to build cached form results. Let's take f.e. tt_news (as it is common known) with a category selector over a form dropdown. It is not possible to cache the pages requested by the dropdown - even if told so, because you can't append the correct cHash for forms - or did I miss something about that? Before at least the page itself was cached if I'm right.


Hi,

I spend the whole yesterday to find out more about caching. I have
prepared a test setup that I uploaded with the key cherries to SVN.

It contains many different varients of links with cHash, without cHash,
without parameter etc. It also contains a USER and a USER_INT that show a
timestamp and the parameteters. This can be combined with the links in
different ways. There is also a link to easily clear the cache of the page.

Please test it with 4.0, with 4.1. Test it with 'pageNotFoundOnCHashError'
to 1 or 0.

Please report your expriences and conclusions. I will report mine. Some I
have already written into the output.


Regards

Elmar