func ReadSimSettingsByDesignId(design_id int) (*addie.SimSettings, error) {
q := fmt.Sprintf(
"SELECT tbegin, tend, max_step FROM sim_settings WHERE design_id = %d",
design_id)
rows, err := runQ(q)
defer safeClose(rows)
if err != nil {
return nil, selectFailure(err)
}
if !rows.Next() {
return nil, emptyReadFailure()
}
var begin, end, maxStep float64
err = rows.Scan(&begin, &end, &maxStep)
if err != nil {
return nil, scanFailure(err)
}
rows.Close()
s := addie.SimSettings{}
s.Begin = begin
s.End = end
s.MaxStep = maxStep
return &s, nil
}
func newXP(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
user, err := getUser(r)
if err != nil {
w.WriteHeader(401)
return
}
msg := new(protocol.NewXP)
err = protocol.Unpack(r, &msg)
if err != nil {
log.Printf("error unpacking newXP message")
log.Println(err)
w.WriteHeader(400)
return
}
log.Printf("Creating xp '%s` for user `%s`", msg.Name, user)
err = db.CreateDesign(msg.Name, user)
if err != nil {
log.Println(err)
log.Printf("[newXP] error creating design entry db")
w.WriteHeader(500)
return
}
design_key, err := db.ReadDesignKey(msg.Name, user)
if err != nil {
log.Println(err)
log.Printf("[newXP] error reading design key")
w.WriteHeader(500)
return
}
//use the default sim settings to begin with
s := addie.SimSettings{}
s.Begin = 0
s.End = 10
s.MaxStep = 1e-3
err = db.CreateSimSettings(s, design_key)
if err != nil {
log.Println(err)
log.Println("[newXP] error creating default sim settings")
w.WriteHeader(500)
return
}
w.WriteHeader(200)
}
