gistfile1.txt

    .factory('StaffList', function ($http) {
        var staffList = [];

        return {
            all: function () {
                // returns promise object
                return staffList = $http.get('API_URL', {
                    cache: true
                });
            },
            get: function (staffId) {
                // fetch the data first
                if (staffList == '') {
                    staffList = this.all();
                }
                // TODO: refactor so it searches through staffList and not make another http call
                staffList.success(function(response) {
                    for (i = 0; i < response.data.length; i++) {
                        if (staffId === response.data[i].entry_id) {
                            return response.data[i];
                        }
                    }

                });
            }
        }