[TYPO3-mvc] Dependency Injection fails only in models

[Bastian Waidelich]

Christian Peters wrote:

> Coming from TYPO3, i was used initiating objects via "new"; which is not
> supported by Extbase.

Right, Extbase can't "hook" into the new keyword (this is possible in 
FLOW3 because we have the proxy generation there).
BTW: Elsewhere in TYPO3 you should avoid the new keyword too and use 
t3lib_div::makeInstance() instead - otherwise the XCLASS and 
t3lib_singleton mechanisms are disabled.

> *One final question: *Does dependency injection work, if I receive Models
> through a Repository?

Yes.


> @Frank: How would you suggest to solve the described problem, if you do
> recommend to not use repositories in models (you have a point there)

In general it is *not* violating MVC or DDD concepts if you have 
repositories inside a model (we have that in the Blog example, too). But 
it might save you hassle if you can avoid it.
For avoiding duplicate entries - I would probably rather check this in 
the controller or, transparently, with object validation.

Best,

-- 
Bastian