func GetSales(rw http.ResponseWriter, r *http.Request, enc encoding.Encoder, params martini.Params) string {
var err error
var ps customer.Prices
var c customer.Customer
id := r.FormValue("id")
if id == "" {
id = params["id"]
}
if c.Id, err = strconv.Atoi(id); err != nil {
apierror.GenerateError("Trouble getting customer ID", err, rw, r)
return ""
}
start := r.FormValue("start")
end := r.FormValue("end")
startDate, err := time.Parse(inputTimeFormat, start)
if err != nil {
apierror.GenerateError("Trouble getting sales start date", err, rw, r)
return ""
}
endDate, err := time.Parse(inputTimeFormat, end)
if err != nil {
apierror.GenerateError("Trouble getting sales end date", err, rw, r)
return ""
}
ps, err = c.GetPricesBySaleRange(startDate, endDate)
if err != nil {
apierror.GenerateError("Trouble getting prices by sales range", err, rw, r)
return ""
}
return encoding.Must(enc.Encode(ps))
}