one to many relationship

[Johnny TwoShoes]

I have a one-many relationship,so in my ViewModel, I have

private List<ActivityViewModel> activityViewModels;

and a ActivityViewModel has:

private Activity activity;

when I traverse ViewModel, how can I get it to display the correct activity???

[wei cheng]

Hi Johnny,

It is a bit strange that you have ViewModel holding an activity, which looks against the intention of Presentation Model(or MVVM) pattern. Could you please provide more information on the case? or is it possible to make a simplest sample out of it and i will have a quick look to see if there is a potential design mistake?

Cheers, Cheng

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[Johnny TwoShoes]

Hi Cheng,

Thanks for the quick response. 

1. the Activity is a Model ( realm object ). It represents a text and 4 dropdown list selections. Since I can have multiple activities, I have one main fragment that isn't bound to anything, that has multiple fragments, each bound to a ActivityVM. 

2. I will try to make simple project representing the issue. 

thanks

[wei cheng]

Hi Johnny,

Got you. I thought it was android Activity. 

Cheers, Cheng

[Johnny TwoShoes]

Hi,

Sorry, it's a poorly named Model.