[TYPO3-core] RFC #10011: New feature: TypoScript Condition to check for installed extensions

[Michael Stucki]

Hi Franz,

>> I agree completely. Additionally, consider that there is the "userFunc"
>> condition type that could be used for such special cases...
> 
> IMHO the userFunc is not very helpful in many cases. It forces users to
> program their own PHP function. Many users want to solve their issues
> with TypoScript and without additional programming.
> However if you are sure this is wrong, then I will remove this patch
> request.

I'm still undecided if it's right or wrong. But we agree there would be
at least one way to work around the problem.

> But I can only do this if this is supported by the TypoScript
> conditions. And I prefer not to add yet another extension to the TYPO3
> TER only for adding the condition about an installed extension. This
> might be usefull also to other TYPO3 extensions.

Why? You can add the userFunc directly to tt_products. No need for
creating a new extension.

> Just consider the different address tables:
> fe_users
> tt_address
> tx_party_addresses
> 
> And there are many more of them. Then you could write a different output
> depending on the address table which is being used.

Yes, might make sense for this.

- michael
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