From what context to get select options source?

Hi, i’m hoping to transfer from backbone.stickit to backbone.epoxy. Mostly epoxy seems better to our needs. But i’m trying to get a <select> filled.

in stickit i would do:

    bindings:{   
         '#category': {
                observe: 'category_id',
                selectOptions: {
                    collection: function(){
                        return this.App.request('collection', 'frontofficemenu');
                    },
                    labelPath: 'name',
                    valuePath: 'id'
                }
            }
      }

the this.App.request returns a collection i’d like to use. Is there some way to do this in epoxy, including the labelPath and valuePath options set per view? maybe through a custom handler?

[maxpoulin64]

Is there anything preventing you from creating and fetching your map and then just pass the resulting collection to Epoxy? Like this:

// Somewhere before your .extend()
var MAP = new FoMenuMap(); MAP.fetch();

// ....
    bindingSources: {
        categories: MAP
    },
    bindings: {
        '#category':'options:$categories'
    }

That way you only ever have one instance of the collection, it’s already fetched and everything. Don’t worry about it being loaded or not, all Epoxy views bound to it will instantly refresh as soon as it will be done fetching.

Also, i think it would really really be helpfull in some ways to be able to define labelPath and valuePath in the specific binding.

Totally agreed, but I’m not sure if it can be implemented in the current state. The way optionsDefault and optionEmpty work is already a bit hackish (they are hardcoded exceptions to the regular handlers map). I have no idea if the author is planning on making that possible or not. Maybe there’s a way to change options: to accept an hash instead so we can so stuff like options:{collection:$myOptions,label:'myNameField',value:'id'} like events: does.

[patrick-radius]

@maxpoulin64 yes {options:$myOptions,label:'myNameField',value:'id'} this would be awesome.