Fetch

fetch...

function fetch(options)
{
    var ongoingAjaxFetch = this.get('ongoingAjaxFetch');
    if(ongoingAjaxFetch) return ongoingAjaxFetch;

    var defaults = { includeDocs: true };
    options = options ? $.extend({}, defaults, options) : defaults;

    var deferred;
    var data = this.cache();
    var forceRefetch = ('refetch' in options) && options.refetch;

    if(data && !forceRefetch)
    {
        deferred = $.Deferred();
        deferred.resolve(data);
    }
    else
    {
        options = $.extend({}, this.options, options);
        deferred = App.connection.ajax.request(App.connection.url.getIssue(options), 'get');
        this.set('ongoingAjaxFetch', deferred);
    }

    $.when(deferred)
    .done(_.bind(this.fetchSuccess, this))
    .fail(_.bind(this.fetchFailure, this))
    .always(_.bind(this.fetchAlways, this));

    return deferred.promise();
}