我有一个 wpf mvvm 应用程序，我应该把数据库或套接字放在哪里？

Question

as I explained in the title I have a wpf app with only one View. The model is Note. In the view you can add notes. Those notes must be sended to a sockets server or saved on a Database, my question is: where do I put the code related to the action of saving notes? In model, viewmodel or in another class?

This question may be trivial, but I have just started up with wpf+mvvm and I am a bit lost.

Thanks for your help :)

Answer 1

Saving or loading model data would be located in the model or a class used by the model. That would be the first M of mvvm

Answer 2

viewmodel is the inter-mediator between view and model. viewmodel is the place where you code the functionality you want in your application whereas model is the core class describing the entities of your application.

Answer 3

I tend to separate anything to do with database accessing to different classes, or even another project and referencing those classes there. depending of the size of your project its a good way to make maintaining the database actions. it also allows you to generalize the database actions. in the end its up to you where you want to place it.