Pass a property of the model to the template in ItemView

Question

I want to pass a property of my model to the template, so I presume I need a serializeData function, I tried this

serializeData:function(){
    return this.model.toJSON().extend({_schema:this.model.schema});
}

but it complained about not being able to extend the output of toJSON. This must be a standard trick, stick some value from the prototype into the serialised form so the template can get it's hands on it.

score 1 · Accepted Answer · answered Dec 03 '15 at 11:45

1

Use templateHelpers for this use case – serializeData works better for replacing the model attributes entirely, or scoping them down.

templateHelpers: function()
{
    return { _schema: this.model.schema };
}

answered Dec 03 '15 at 11:45

Hein Haraldson Berg

1,108
11
24

Ok. Well I'll add a helper to handlebars then called '%' which will take an argument and return this.model [arg] – Mark Lester Dec 03 '15 at 14:11
@MarkLester Not sure what Handlebars helpers has to do with this. Marionette’s `templateHelpers` is just a convenient way to add to the attributes hash passed to the template – just badly named. – Hein Haraldson Berg Dec 03 '15 at 14:13
Yes. I withdraw that. – Mark Lester Dec 03 '15 at 14:18

score 0 · Answer 2 · answered Dec 03 '15 at 14:23

0

Harladson's answers is the best, but in case someone else comes looking different approach you can do this:

serializeData:function(){
    var data = this.model.toJSON();
    data._schema = this.model.schema;
    return data;
}

answered Dec 03 '15 at 14:23

Belac

953
1
6
10

I guess what I want is to be able to go {{#each %schema}} , which would be nice but hard. Template helper is the way to keep me going – Mark Lester Dec 03 '15 at 14:29

Pass a property of the model to the template in ItemView

2 Answers2