车把：模板中有多个模型

Question

I am starting with Handlebars, and was wondering:

Is there the possibility to pass more than one model to the view?

I am passing my model with $(template(model)) to the view:

    var source = $('#template').html();
    var template = Handlebars.compile(source);
    var model = this.model.toJSON();
    $(template(model)).appendTo(this.$parent);

So I can pass one variable with stored JSON data to the view. But what if I want to have two different variables/models in one template?

Is this possible? This would be much easier than generating another template and loading into the other.

Answer 1

A compiled Handlebars template just wants an object as its argument, you can build that object however you want. If you want two models, just add an extra level of indirection:

var html  = template({
    model: this.model.toJSON(),
    other: this.other_model.toJSON()
});

and then inside your template you can say things like:

{{model.attribute}}
{{other.other_attribute}}

and the like.

---

As an aside, a Backbone view adding HTML to anything other than this.$el (ie this.$parent ) is a bit dodgy. Events are bound to this.$el so events won't work without help. You'll probably an easier time if you turn that around a bit so that the parent places your view's $el somewhere so that your view can be self contained.