MVC question: direct modell <-> view communication - why?

Question

can anybody tell me, why communicates the model direct with the view in the MVC pattern, and why not just throught the controller?

Where exactly does the model communicate with the view in this WP article? — , Apr 05 '11 at 11:54

Kerem Baydoğan · Accepted Answer · 2011-04-05T13:09:18.303

6

Sometimes it is too costly to use Controller for simple View/Model communication.

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If your view just shows raw data without any operation (filtration, visualization, modification ...) it is easy to forget about Controller.

But this behavior is so abuse-able sometimes it kills all of the advantages of MVC.

And this where MVP comes in:

MVP (Model-View-Presenter) cuts the connection between model and view and every thing pass through man-in-the-middle (Presenter).

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edited Apr 05 '11 at 13:09

answered Apr 05 '11 at 12:09

Kerem Baydoğan

That's why I'm asking that, it was my opinion too – Aaaaaaaa Apr 05 '11 at 12:24

score 0 · Answer 2 · edited Oct 29 '12 at 01:59

The views know of the model and will interact with the model.

If a button is clicked an action message might be sent to a model object in order to get something done.
If a new value is typed into an entry field an update message might be sent to a model object in order to give it its new value.
If a value is needed for a display an enquiry message might be sent to a model object in order to get a value.

2 Answers2