[TYPO3-core] RFC: #13554: Preview of mount pages via backend

[Ernesto Baschny [cron IT]]

Hi,

commited the attached patches as a follow-up to this task. This makes
the code be in line with what is already done in the "click-menu". And
also fixes the issue of calling init() without a parameter, which could
generate an error / exception:

- trunk rev. 7183
- TYPO3_4-3 rev. 7185
- TYPO3_4-2 rev. 7186

Cheers,
Ernesto

Ernesto Baschny [cron IT] schrieb am 04.03.2010 15:20:
> Hi,
> 
> commited to:
> 
> - trunk rev. 7075
> - TYPO3_4-3 rev. 7076 (will be in 4.3.3)
> - TYPO3_4-2 rev. 7077 (will be in 4.2.13)
> 
> Cheers,
> Ernesto
> 
> Ernesto Baschny [cron IT] schrieb am 04.03.2010 09:00:
> 
>> Georg Ringer schrieb am 16.02.2010 14:16:
>>
>>> Type: Feature (or bugfix?)
>>>
>>> Bugtracker references:
>>> http://bugs.typo3.org/view.php?id=13554
>>>
>>> Branches: Trunk (or 4.3, 4.2)
>> I agree that this is a bug and should also be applied to 4.3 and 4.2.
>>
>>> Problem:
>>> Curently it is not possible to get previews of mount pages because the
>>> preview link is missing the mountpoint information. Therefore the error
>>> "The requested page didn't have a proper connection to the tree-root!
>>> (Illegal Mount Point found in rootline)" is displayed
>>>
>>> Solution:
>>> If the wanted page is a mount page, fetch the needed information from
>>> the page record and apply the &MP variable
>>>
>>> Additional information / To reproduce:
>>> - Create a new mount page, check the option "Substitute Mount Point
>>> (this page) with Mounted page:" and set a page to be mounted
>>> - View the page in the module "View"
>>> - See the error
>>> - Apply the patch
>>> - See the error go away
>> Your patch calculates the MP variable by hand. This won't handle more
>> complex scenarios as nested mount points, versioning overlay, etc. Since
>> we have a nice function already for calculating it (which is also used
>> in the FE), I made a patch that makes use of it.
>>
>> Please test again, and give your opinions.
>>
>> Related to that is a fix also for the "Show" click menu in the page tree
>> (as Susanne noted), which I will post as a new RFC right after this message.
> 

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