How to get model property in className of ItemView element?

Question

In my application, I need to display ul users with their identifiers in the class attribute of li. S I tried to do it as follows:

Marionette.ItemView.extend({
    tagName: 'li',
    className: this.model.get('user_id'),
        template: userTpl
});

But that did not work. Can this be achieved in any other way?

Answer 1

Can't you do something like that?

className: function(){
  return this.model.get('user_id');
}

Answer 2

You can put this logic in the onBeforeRender method

Marionette.ItemView.extend({
    tagName: 'li',
    template: userTpl,
    onBeforeRender: function(){
          this.className = this.model.get('user_id'),
    }
});

Answer 3

setElement, :

Backbone DOM, setElement, $el .