Collection of items. Usually intended for 1 => many relationships ie. patient => patient problems

pat_problem_history: {
    _info: "added from medical/PatientsProblemModel incase build does not have patient problems.",
    name: "Problem History",
    type: "collection",

    //resource can be provided to generate a subresource url
    //if the following were active, the url would be patients/[pat_id]/problems
    //Be careful with this, as the url may not pass on to the individual models
    //of that collection
    //resource and collectionArgs.url should NOT be used at the same time

    //resource: 'problems',

    //collectionArgs can be a raw object or function that returns an object
    //these args are passed straight a {awa.mvc.Collection} constructor.
    //That collection is then set as the property.
    //If a function is provided, it is scoped to the model
    collectionArgs: function(){
        var out = {};
        out.model = 'medical/PatientsProblemModel';
        if(!this.isNew()){
            out.url = _.result(this, 'url')+"/problems";
        }
        out.order_by = "pip_diagnosed_ts";
        out.sort_by = "DESC";
        out.filters = {pip_disabled: 0};
        return out;
    }
}