[TYPO3-english] Extbase MM & Extension builder

Lorenz Ulrich lorenz-typo3 at visol.ch
Tue Feb 19 16:18:39 CET 2013

Hi Mitja

Using a true MM relation for that is the only clean approach for this. 
TYPO3 still uses some old comma-separated relations in the core (e.h. 
the backend user groups of a backend user), but there are plans to 
change this.

The only clean relational approach (IMO) is to do it how Extbase 
suggests it.

You may get faster feedback in the typo3v4mvc list.

Best regards,


Am 16.02.2013 21:16, schrieb Mitja:
> Hi!
> I am developing a new extension with Extbase Builder and I have noticed
> that for each MM relationship Extbase creates a new table.
> Let me explain with this example(just an example, not real):
> I have a custom users table and I need to make each user member of a
> group or maximum 10 groups. Now I dont see a need to have a MM table for
> this, as it will almost surely slow down performance when there will be
> a need to fetch large quantity of users.
> My question is, what is the best practice in this situation? Do I select
> a regular "string" field in the builder and then do I worry about this
> myself, or is there maybe a neater solution?
> Many thanks!

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